Spur Gears / Plastic / Contact Angle 20 Degrees (Part Numbers - CAD Download)

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Part Numbers
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Dimensional Drawing

Gear Shape

Shape K
Shape A Shape A (With Metal Hub Insert) Shape B Shape B (With Metal Hub Insert) Tooth surface accuracy Equivalent to the new JIS B 1702-1 Class 9
(Old JIS B 1702 Class 5)

[ ! ] Gear Shape A has no accessories.
[ ! ] Adhesive is applied to metal hub insert and press-fit.
[ ! ] P dimension of GEABM (MC Nylon) may shrink due to its water-absorbing property.

T Dim. Tolerance (H7)

Nominal	P_H7
8 to 10	+0.015 0
11 to 18	+0.018 0
19 to 30	+0.021 0
31 to 50	+0.025 0

[ ! ] Compliant with JIS B 0401-2.

Unspecified Dimension Tolerance (Other than the teeth)

Dimension Range		Tolerance (mm)
Over	or Less	Tolerance (mm)
0.5	3	±0.1
3	6	±0.1
6	30	±0.2
30	120	±0.3
120	400	±0.5

[ ! ] Compliant with JIS B 0405 Class m (intermediate).

Specification Table

Products Image No.	Type	[M] Material		[A]Accessory
		Gear	Metal Hub Insert
(1)	GEABM	MC Nylon	—	Set Screw (EN 1.7220 Equiv., Black Oxide)
	GEABMS		EN 1.1191 Equiv.
	GEABMT		EN 1.4301 Equiv.	Set Screw (EN 1.4301 Equiv.)
(2)	GEABP	White Polyacetal	—	Set Screw (EN 1.7220 Equiv., Black Oxide)
	GEABPS		EN 1.1191 Equiv.
	GEABPT		EN 1.4301 Equiv.	Set Screw (EN 1.4301 Equiv.)
(3)	GEABA	Blue Polyacetal	-	Set Screw (EN 1.7220 Equiv., Black Oxide)
	GEABAS		EN 1.1191 Equiv.
	GEABAT		EN 1.4301 Equiv.	Set Screw (EN 1.4301 Equiv.)

Specification Table

Part Number	—	Number of Teeth	—	B	—	Gear Shape	—	P
GEABM1.0 GEABPS2.0 GEABM0.5	— — —	20 40 20	— — —	10 20 8	— — —	A B K	— — —	8 20 7

■Module 0.5, 0.8

Part Number		Number of Teeth	B	Gear Shape	Shaft Bore Dia. P_H7 Unit: mm		d Reference Circle Dia.	D Addendum Circle Dia.	G Dedendum Circle Dia.	H	L	ℓ₁	ℓ₂	M (Coarse)	d₁	* 1 Allowable Transmission Force (N⋅m) Bending Strength
Type	Module	Number of Teeth	B	Gear Shape	W/o Metal Hub Insert	With Metal Hub Insert	d Reference Circle Dia.	D Addendum Circle Dia.	G Dedendum Circle Dia.	H	L	ℓ₁	ℓ₂	M (Coarse)	d₁	MC Nylon	Polyacetal
GEABM (MC Nylon) GEABP (White Polyacetal) GEABA (Blue Polyacetal)	0.5	15	8	K	3 to 5	—	7.5	8.5	6.25	9	18	10	3	M3	—	0.08	0.33
		16			3 to 5		8	9	6.75	9						0.09	0.36
		18			3 to 7		9	10	7.75	10						0.11	0.42
		20			3 to 7		10	11	8.75	11						0.12	0.49
		20	3 5	B	3 to 5		10	11	8.75	8.5	10 (B = 5) 8 (B = 3) 7 (B = 2)	5	2.5			0.05	0.18
		24			3 to 7		12	13	10.75	10						0.06	0.23
		25					12.5	13.5	11.25							0.06	0.24
		28					14	15	12.75							0.07	0.28
		30					15	16	13.75							0.08	0.31
		32					16	17	14.75							0.08	0.33
		36					18	19	16.75							0.10	0.39
		40	2 3 5				20	21	18.75							0.11	0.44
		45					22.5	23.5	21.25							0.13	0.51
		48					24	25	22.75							0.14	0.55
		50					25	26	23.75							0.15	0.58
		56	3 5				28	29	26.75							0.17	0.67
		60					30	31	28.75							0.18	0.73
		64					32	33	30.75							0.20	0.78
		70			3 to 8		35	36	33.75	12						0.22	0.86
		72					36	37	34.75							0.22	0.89
		80					40	41	38.75							0.25	0.99
		90			3 to 9		45	46	43.75	14						0.28	1.13
		100					50	51	48.75							0.32	1.27
		120					60	61	58.75							0.39	1.54
	0.8	12	7	K	4 to 6	—	9.6	11.2	7.6	11.2	20	13	3	M3	—	0.13	0.50
		14			4 to 8		11.2	12.8	9.2	12.8						0.17	0.66
		15			4 to 9		12	13.6	10	13.6						0.18	0.73
		16	5 8	B	4 to 7		12.8	14.4	10.8	10	17 (B = 8) 14 (B = 5)	9				0.15	0.58
		18					14.4	16	12.4							0.17	0.67
		20					16	17.6	14							0.20	0.78
		24			5 to 8		19.2	20.8	17.2	12.5						0.25	0.98
		25					20	21.6	18							0.26	1.04
		28					22.4	24	20.4							0.30	1.20
		30					24	25.6	22							0.33	1.30
		32					25.6	27.2	23.6				4			0.36	1.42
		36			6 to 9		28.8	30.4	26.8	14				M4		0.42	1.65
		40					32	33.6	30							0.47	1.88
		45					36	37.6	34							0.55	2.18
		48					38.4	40	36.4							0.59	2.36
		50					40	41.6	38							0.63	2.49
		56					44.8	46.4	42.8							0.72	2.85
		60					48	49.6	46							0.78	3.11
		64					51.2	52.8	49.2							0.84	3.33
		70			6 to 11		56	57.6	54	16						0.92	3.66
		72					57.6	59.2	55.6							0.95	3.78
		80					64	65.6	62							1.07	4.24
		90			6 to 14		72	73.6	70	20						1.21	4.83
		100			6 to 16		80	81.6	78	24						1.37	5.43
		120			6 to 21		96	97.6	94	30						1.66	6.58

[ ! ] Metal Hub Insert is not included in the standard for modules 0.5 and 0.8.
" ! " To select the maximum face width (B) within each module, Gear Shape A: B ≤ P × 5, Shape B: Select within the range of L ≤ P × 5.
*1 Allowable Transmission Forces in the table are reference values calculated with prescribed conditions.
Module 0.5 with 20 to 120 teeth is calculated as tooth width 3 mm.
Module 0.8 with 16 to 120 teeth is calculated as tooth width 5 mm.

■Module 1.0, 1.5, 2.0

Part Number		Number of Teeth	B	Gear Shape	Shaft Bore Dia. P_H7 Unit: mm		d Reference Circle Dia.	D Addendum Circle Dia.	G Dedendum Circle Dia.	H	L	ℓ₁	ℓ₂	M (Coarse)	d₁	* 1 Allowable Transmission Force (N⋅m) Bending Strength
Type	Module	Number of Teeth	B	Gear Shape	W/o Metal Hub Insert	With Metal Hub Insert	d Reference Circle Dia.	D Addendum Circle Dia.	G Dedendum Circle Dia.	H	L	ℓ₁	ℓ₂	M (Coarse)	d₁	MC Nylon	Polyacetal
GEABM (MC Nylon) GEABP (White Polyacetal) GEABA (Blue Polyacetal) GEABMS (With Metal Hub Insert / MC Nylon) GEABPS (With Metal Hub Insert / White Polyacetal) GEABAS (With Metal Hub Insert / Blue Polyacetal) GEABMT (With SUS Metal Hub Insert MC Nylon) GEABPT (With SUS Metal Hub Insert White Polyacetal) GEABAT (With SUS Metal Hub Insert Blue Polyacetal)	1.0	15	12	A	6 to 10	6	15	17	12.5	—	—	—	—	—	P+4	0.49	1.71
		* 16	12	K	8 to 12	—	16	18	13.5	18	25	13	3	M3	—	0.54	1.89
		18	8 10 15	A B	8 to 10	8	18	20	15.5	15	25 (B = 15) 20 (B = 10) 18 (B = 8)	10	4	M4	P+4	0.42	1.47
		20			8 to 11		20	22	17.5	16						0.49	1.70
		22			8 to 12		22	24	19.5	18						0.55	1.93
		24			8 to 14	8·10	24	26	21.5	20						0.62	2.15
		25			8 to 14		25	27	22.5	20						0.66	2.27
		26			8 to 15		26	28	23.5	22						0.69	2.40
		28			8 to 15		28	30	25.5	22						0.75	2.62
		30			10 to 17	10·12	30	32	27.5	25						0.82	2.85
		32			10 to 18		32	34	29.5	26						0.89	3.10
		35			10 to 18		35	37	32.5	26						1.00	3.47
		36			10 to 19	10·12·15	36	38	33.5	28						1.04	3.61
		40			10 to 21		40	42	37.5	30						1.18	4.12
		45					45	47	42.5							1.37	4.76
		48					48	50	45.5							1.49	5.16
		50			10 to 24	10·12·15·20	50	52	47.5	35						1.57	5.44
		55					55	57	52.5							1.76	6.10
		60					60	62	57.5							1.95	6.79
		70			10 to 28		70	72	67.5	40						2.30	8.02
		75					75	77	72.5							2.49	8.64
		80					80	82	77.5							2.66	9.27
		90					90	92	87.5							3.04	10.55
		100					100	102	97.5							3.42	11.87
		120					120	122	117.5							4.14	14.39
	1.5	15	10 15 20	A B	8 to 12	8	22.5	25.5	18.75	18	29 (B=20) 24 (B=15) 19 (B = 10)	9	3	M3	P+4	0.92	2.11
		16			8 to 14	8·10	24	27	20.25	20	29 (B=20) 24 (B=15) 19 (B = 10)	9	3	M3		1.02	2.33
		18			8 to 15	8·10	27	30	23.25	22	32 (B = 20) 27 (B = 15) 22 (B = 10)	12	4	M4		1.19	2.72
		20			8 to 17	8·10·12	30	33	26.25	25						1.38	3.15
		24			8 to 21	8·10·12·15	36	39	32.25	30						1.74	3.98
		25			8 to 21		37.5	40.5	33.75	30						1.84	4.20
		26			8 to 22		39	42	35.25	32						1.94	4.43
		28			8 to 23		42	45	38.25	34						2.12	4.85
		30			8 to 24	8·10·12·15·20	45	48	41.25	35						2.31	5.27
		32			8 to 28		48	51	44.25	40						2.51	5.72
		35			8 to 28		52.5	55.5	48.75							2.81	6.42
		36			8 to 28		54	57	50.25							2.92	6.67
		40			10 to 31	10·12·15·20·25	60	63	56.25	45						3.33	7.61
		45			10 to 31		67.5	70.5	63.75							3.85	8.80
		48			10 to 31		72	75	68.25							4.18	9.54
		50			10 to 31		75	78	71.25							4.40	10.05
		60			10 to 35		90	93	86.25	50						5.49	12.55
		70			12 to 35	12·15·20·25	105	108	101.25	50						6.48	14.81
		80			12 to 38	12·15·20·25	120	123	116.25	55						7.50	17.13
	2.0	* 12	15 20 25	A B	10 to 12	—	24	28	19.0	18	39 (B = 25) 34 (B = 20) 29 (B = 15)	14	4	M4	—	1.69	1.84
		14			10 to 14	10	28	32	23.0	20					P+4	2.22	2.42
		15			10 to 16	10·12	30	34	25.0	24						2.46	2.69
		16			10 to 17	10·12·15	32	36	27.0	25						2.72	2.98
		18			10 to 21		36	40	31.0	30						3.18	3.47
		20			10 to 23		40	44	35.0	33						3.68	4.02
		24			10 to 28	10·12·15·20	48	52	43.0	40						4.64	5.08
		25			10 to 28	10·12·15·20	50	54	45.0	40						4.91	5.36
		28			10 to 31	10·12·15·20·25	56	60	51.0	45						5.66	6.18
		30			10 to 33	10·12·15·20·25	60	64	55.0	48						6.15	6.72
		32			12 to 35	12·15·20·25·30	64	68	59.0	50						6.68	7.30
		35			12 to 35		70	74	65.0							7.49	8.19
		36			12 to 35		72	76	67.0							7.79	8.51
		40			12 to 42		80	84	75.0	60						8.90	9.71
		45					90	94	85.0							10.28	11.23
		48					96	100	91.0							11.14	12.17
		50					100	104	95.0							11.74	12.83
		60					120	124	115.0							14.66	16.01

[ ! ]The "-" text in the above table means that it is not selectable.
" ! " To select the maximum face width (B) within each module, Gear Shape A: B ≤ P × 5, Shape B: Select within the range of L ≤ P × 5
[NG] Number of Teeth with * is not With Metal Hub Insert Type.
*1 Allowable Transmission Forces in the table are reference values calculated with prescribed conditions.
Calculated with the thinnest tooth width for each module 1.0, 1.5, and 2.0.
Please calculate based on the tooth width to be selected.
(Example) [Selection Conditions] Module 1.0, face width 40, MC nylon, face width B = 15
Bending Strength: 1.18 × 15÷8=2.21 N⋅m

■Module 2.5, 3.0

Part Number		Number of Teeth	B	Gear Shape	Shaft Bore Dia. P_H7 Unit: mm		d Reference Circle Dia.	D Addendum Circle Dia.	G Dedendum Circle Dia.	H	L	ℓ₁	ℓ₂	M (Coarse)	d₁	* 1 Allowable Transmission Force (N⋅m) Bending Strength
Type	Module	Number of Teeth	B	Gear Shape	W/o Metal Hub Insert	With Metal Hub Insert	d Reference Circle Dia.	D Addendum Circle Dia.	G Dedendum Circle Dia.	H	L	ℓ₁	ℓ₂	M (Coarse)	d₁	MC Nylon	Polyacetal
GEABM (MC Nylon) GEABMS (With Metal Hub Insert / MC Nylon) GEABMT (With SUS Metal Hub Insert MC Nylon)	2.5	12	20 25 30	A B	10 to 16	10	30	35	23.75	23	42 (B = 30) 37 (B = 25) 32 (B=20)	12	6	M5	P+6	3.51	—
		14			10 to 17	10	35	40	28.75	25						4.62
		15			12 to 21	10·12·15	37.5	42.5	31.25	30						5.13
		16			12 to 22	10·12·15	40	45	33.75	32						5.67
		18			12 to 26	10·12·15·20	45	50	38.75	38						6.62
		20			12 to 28	10·12·15·20	50	55	43.75	40						7.67
		22			12 to 30	12·15·20	55	60	48.75	44				M6	P+8	8.67
		24			12 to 33	12·15·20·25	60	65	53.75	48						9.68
		25			12 to 35	12·15·20·25	62.5	67.5	56.25	50						10.22
		28			12 to 42	12·15·20·25·30	70	75	63.75	60						11.78
		30			12 to 45	12·15·20·25·30	75	80	68.75	65						12.82
		32			15 to 49	15·20·25·30·35	80	85	73.75	70						13.92
		35					87.5	92.5	81.25							15.62
		36					90	95	83.75							16.22
		40					100	105	93.75							18.52
		45					112.5	117.5	106.25							21.41
		48					120	125	113.75							23.21
		50					125	130	118.75							24.46
	3.0	12	25 30 35	A B	12 to 19	12	36	42	28.5	28	50 (B = 35) 45 (B = 30) 40 (B=25)	15	7.5	M5	P+6	6.32	—
		14			12 to 22	12·15	42	48	34.5	32						8.32
		15			14 to 25	12·15	45	51	37.5	36						9.23
		16			14 to 26	12·15·20	48	54	40.5	38						10.21
		18			14 to 28	12·15·20	54	60	46.5	40						11.93
		20			14 to 35	15·20·25	60	66	52.5	50				M6	P+8	13.80
		22			14 to 37	15·20·25	66	72	58.5	54						15.60
		24			14 to 40	15·20·25·30	72	78	64.5	58						17.42
		25			14 to 42	15·20·25·30	75	81	67.5	60						18.40
		28			14 to 49	15·20·25·30·35	84	90	76.5	70						21.21
		30			14 to 52	15·20·25·30·35	90	96	82.5	75						23.07
		32			18 to 52	20·25·30·35·40	96	102	88.5	75						25.05
		35			18 to 56		105	111	97.5	80						28.11
		36					108	114	100.5							29.18
		40					120	126	112.5							33.34
		45					135	141	127.5							38.54

[!]The "-" text in the above table means that it is not selectable.
" ! " To select the maximum face width (B) within each module, Gear Shape A: B ≤ P × 5, Shape B: Select within the range of L ≤ P × 5.
*1 Allowable Transmission Forces in the table are reference values calculated with prescribed conditions.
Calculated with the thinnest tooth width for modules 2.5 and 3.0.
Please calculate based on the tooth width to be selected.
(Example) [Selection Conditions] Module 3.0, face width 40, MC nylon, face width B = 35
Bending Strength: 33.34 × 35÷25=46.67 N⋅m

Alterations

Set Screw Alteration

Tapped Hole Dimension Change

Root matching

Code

KC90·KC120

TPC

GBA

Spec.

KC90: Adds another set screw at 90° position.
KC120: Adds another set screw at 120° position.
A set screw is added.
Ordering Code KC90
Applicable Conditions [NG] Not applicable to Shape A [NG] Not applicable to Straight Bore Type
KC90 KC120

Changes the tapped hole dimension.
Ordering Code TPC4
Applicable conditions [NG] Not applicable to Shape A
Standard Conditions [ ! ] ℓ₁ - ℓ₂ > TPC/2

M	TPC
M3	M4
M4	M3 M5
M5	M4 M6
M6	M5 M8

Align the bottom of the gear with the phase of the tap.
Phase Adjustment Tolerance ±0.3 (Reference Value)
Ordering Code GBA
Applicable Conditions [ ! ] Applicable to 19 teeth or more
[ ! ] Applicable to Module 1.0, 1.5, 2.0, 2.5, and 3.0 only

Alterations

Stepped Hole

Both Ends Stepped Hole

Hub Cut

Code

DHL·DHR

WDH

Spec.

Changes shaft bores to stepped bores.
Dimension Increments Z: 1 mm Increments J: 0.1 mm Increments
Ordering Code DHL-Z20-4.0
Applicable Conditions [NG] Not applicable to With Metal Hub Insert Type [NG ] Not applicable to Shape K
[ ! ] No tapped holes for Shape B.
Standard conditions

·DHL	·DHR
[ ! ] Shape A P + 2 ≤ Z ≤ G－4, 2 ≤ J ≤ B－3	[ ! ] Shape A P + 2 ≤ Z ≤ G－4, 2 ≤ J ≤ B－3
[ ! ] Shape B P + 2 ≤ Z ≤ G - 4,2 ≤ J ≤ L - 3	[ ! ] Shape B P + 2 ≤ Z ≤ H−4, 2 ≤ J ≤ ℓ₁

Changes shaft bores to both ends stepped hole.
Dimension Increments Q, R, S, T: 1 mm Increments S, T ≥ 3
Ordering Code WDH-Q10-R10-S3-T3
Applicable Conditions [NG] Not applicable to With Metal Hub Insert Type [NG ] Not applicable to Shape K
[ ! ] No tapped holes for Shape B.
Standard conditions

·Shape A	· Shape B
[ ! ]P+2 ≤ Q,R ≤ G－4	[ ! ]P+2 ≤ Q,R ≤ H－4
[ ! ]S+T ≤ B－3	[ ! ] S + T ≤ L - 3 [ ! ] Shaft Bore Dia. P is general tolerance

Cuts the hub length to the specified length.
Increments 0.5 mm
Ordering Code BS6.5
Applicable Conditions [NG] Not applicable to Shape A, K
Standard conditions
[!] Straight Bore: 0 ≤ BS ≤ ℓ₁
[!] Straight Bore + Tapped Type: BS=0;
M+3 ≤ BS ≤ ℓ₁
" ! " Keyway + Tapped Type: BS=0;
M+3 ≤ BS ≤ ℓ₁
[ ! ] If BS = 0, no tapped hole

M	C
M3	3.5
M4	4.5
M5	5.5
M6	6.5

Alterations	Side Slotted Hole	Side Through Hole
Code	LFC·LTC	KFC·KTC
Spec.	Machines slotted holes on the side surface (30°). Dimension Increments LFC, LTC: 1 mm Increments Select M M3, M4, M5, M6 Ordering Code LFC20-M3	Machines through holes on the side surface. Increments KFC, KTC: 1 mm Increments K: 0.5 mm Increments Select M K3.0 to K6.0 Applicable Conditions [NG] Not applicable to Shape K
	Applicable Conditions [ ! ] Applicable to Shape A only Standard Conditions [ ! ] Without Metal Hub Insert: P + C + 4 ≤ LFC (LTC) ≤ G - C - 4 [ ! ] With Metal Hub Insert: d₁ + C + 4 ≤ LFC(LTC) ≤ G - C - 4	Shape A Ordering Code KFC20-K3.5 Standard Conditions [ ! ] Without Metal Hub Insert: P + K + 4 ≤ KFC (KTC) ≤ G - K - 4 [ ! ] With Metal Hub Insert: d₁ + K + 4 ≤ KFC(LTC) ≤ G - K - 4	Shape B Ordering Code KFC20-K3.5 Standard Conditions [ ! ] Without Metal Hub Insert: P + K + 4 ≤ KFC (KTC) ≤ H - K - 4; H + K + 4 ≤ KFC (KTC) ≤ G - K - 4 [ ! ] With Metal Hub Insert: d₁ + K + 4 ≤ KFC (KTC) ≤ H - K - 4; H + K + 4 ≤ KFC (KTC) ≤ G - K - 4

General Information - Spur Gears

Spur gears - front gear with through hole - spur gear with spring pin - spur gear made of brass - brass pinion - plastic - spur gear with ball bearing

Selection details of spur gears

- Material: steel, stainless steel, sintered steel, nylon, polyacetal, brass, aluminum, cast iron

- Coatings: burnished, nickel-plated

- Heat treatment: induction hardened

- Shaft diameter tolerances: H7, H8

- Tooth flank clearance: N5, N7, N8, N9, N12

- Module: 0.3, 0.5, 0.75, 0.8, 1, 1.25, 1.5, 2, 2.5, 3, 4, 4.5, 5, 6, 8, 10, 15, 20

- Pressure angle: 20°

- Shaft diameter: 2 mm to 50 mm

- Number of teeth: 8 to 200

- Tooth width: 2 mm to 90 mm

Description/Basics

The spur gears offered are generally machine elements that serve the non-slip transmission of force, movement transmission or movement change. The teeth of the cylinder wheels grip each other during transmission and largely roll over the tooth flanks. The tooth shape of the spur gear is convexly shaped in the shaped tooth system. At the beginning of the intervention, a rolling resistance acts on the tooth flank, which becomes a sliding friction in the course of the rotation.

A combination of gear wheels and rack gears is useful in the construction of rack gear. This allows motor rotary motion or other rotary motion to be converted into linear motion. rack gear boxes are theoretically possible in an endless assembly. Limits here only set the length of the rack gears for the rack gear drive.

Gear wheels with straight gearing are particularly suitable for the construction of gearboxes. The advantage of straight gearing as opposed to helical gears, is the possibility of transmitting a higher torque. It should be noted that with increasing speed within the transmission ratio or reduction, the torque to be transmitted decreases.

When designing spur gear pairs, the ratio of the gear ratio (number of teeth) and the module of the respective gear wheels must be observed.
The backlash is another important factor that must be considered during construction. Reverse play is understood as the result of the play that the change in the direction of rotation of a single gear wheel pair between the teeth. The risk of reverse play can be reduced if either the diameter or the number of teeth of the cogwheel pairing do not deviate too much from one another. If high wear is to be expected due to the pairing of gears, the MISUMI online shop offers gears with a hardened key-type.

For applications with the same rotational direction, it is possible to use an intermediate gear with integrated bearing on a cantilever shaft. The bearing number used can be found under the tab More Information. An overview of tolerances and permissible radial bearing deviations can be found in the following PDF.

In addition to gear wheels, MISUMI also offers suitable rotary shafts for the construction of a transmission. The straight front wheels can be assembled on these and secured with a set screw or machine keys (key with adjusting screw). This PDF provides an overview of the configurable mountings for the shaft rotation and keyway tolerances.
The continuous adjusting of a spur gear can be realized, among other things, by means of a clamping sleeve. The MISUMI online shop offers spur gears with clamping sleeve. Alternatively, we also offer individual keyless bushing that you can customize to your needs.

Application Examples - Spur Gears

Application example: workpiece transport - spur gear - rack gear - roller bearings - workpiece

Application example - spur gear with rack gear
(1) Spur gear, (2) Clamping knobs, (3) Rack gear

Application example: rack gear - spur gear with rack gear - handle - rotary handle

Application example - spur gear
(1) Spur gear, (2) Workpiece, (3) Rollers

Industrial Applications

3D printer industry

Automotive industry

Pharmaceutical industry

Packaging industry

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Part Number
GEABA0.5-20-3-B-[3-5/1]
GEABA0.5-20-5-B-[3-5/1]
GEABA0.5-24-3-B-[3-7/1]
GEABA0.5-24-5-B-[3-7/1]
GEABA0.5-25-3-B-[3-7/1]
GEABA0.5-25-5-B-[3-7/1]
GEABA0.5-28-3-B-[3-7/1]
GEABA0.5-28-5-B-[3-7/1]
GEABA0.5-30-3-B-[3-7/1]
GEABA0.5-30-5-B-[3-7/1]
GEABA0.5-32-3-B-[3-7/1]
GEABA0.5-32-5-B-[3-7/1]
GEABA0.5-36-3-B-[3-7/1]
GEABA0.5-36-5-B-[3-7/1]
GEABA0.5-40-2-B-[3-7/1]
GEABA0.5-40-3-B-[3-7/1]
GEABA0.5-40-5-B-[3-7/1]
GEABA0.5-45-2-B-[3-7/1]
GEABA0.5-45-3-B-[3-7/1]
GEABA0.5-45-5-B-[3-7/1]
GEABA0.5-48-2-B-[3-7/1]
GEABA0.5-48-3-B-[3-7/1]
GEABA0.5-48-5-B-[3-7/1]
GEABA0.5-50-2-B-[3-7/1]
GEABA0.5-50-3-B-[3-7/1]
GEABA0.5-50-5-B-[3-7/1]
GEABA0.5-56-3-B-[3-7/1]
GEABA0.5-56-5-B-[3-7/1]
GEABA0.5-60-3-B-[3-7/1]
GEABA0.5-60-5-B-[3-7/1]
GEABA0.5-64-3-B-[3-7/1]
GEABA0.5-64-5-B-[3-7/1]
GEABA0.5-70-3-B-[3-8/1]
GEABA0.5-70-5-B-[3-8/1]
GEABA0.5-72-3-B-[3-8/1]
GEABA0.5-72-5-B-[3-8/1]
GEABA0.5-80-3-B-[3-8/1]
GEABA0.5-80-5-B-[3-8/1]
GEABA0.5-90-3-B-[3-9/1]
GEABA0.5-90-5-B-[3-9/1]
GEABA0.5-100-3-B-[3-9/1]
GEABA0.5-100-5-B-[3-9/1]
GEABA0.5-120-3-B-[3-9/1]
GEABA0.5-120-5-B-[3-9/1]
GEABA0.8-16-5-B-[4-7/1]
GEABA0.8-16-8-B-[4-7/1]
GEABA0.8-18-5-B-[4-7/1]
GEABA0.8-18-8-B-[4-7/1]
GEABA0.8-20-5-B-[4-7/1]
GEABA0.8-20-8-B-[4-7/1]
GEABA0.8-24-5-B-[5-8/1]
GEABA0.8-24-8-B-[5-8/1]
GEABA0.8-25-5-B-[5-8/1]
GEABA0.8-25-8-B-[5-8/1]
GEABA0.8-28-5-B-[5-8/1]
GEABA0.8-28-8-B-[5-8/1]
GEABA0.8-30-5-B-[5-8/1]
GEABA0.8-30-8-B-[5-8/1]
GEABA0.8-32-5-B-[5-8/1]
GEABA0.8-32-8-B-[5-8/1]

Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	RoHS	RoHS Information	Features, Areas of Application	Number of Teeth (Teeth)	Shape	Shaft Bore Config.	Material	Shaft Bore Dia. (Ø)	Tooth Width B (mm)	Precision (Old JIS)	Bushing
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	20	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 5	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	20	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 5	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	24	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	24	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	25	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	25	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	28	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	28	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	30	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	30	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	32	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	32	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	36	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	36	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	40	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	2	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	40	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	40	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	45	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	2	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	45	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	45	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	48	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	2	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	48	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	48	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	50	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	2	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	50	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	50	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	56	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	56	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	60	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	60	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	64	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	64	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 7	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	70	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 8	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	70	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 8	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	72	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 8	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	72	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 8	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	80	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 8	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	80	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 8	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	90	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 9	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	90	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 9	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	100	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 9	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	100	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 9	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	120	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 9	3	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	120	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	3 ～ 9	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	16	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	4 ～ 7	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	16	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	4 ～ 7	8	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	18	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	4 ～ 7	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	18	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	4 ～ 7	8	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	20	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	4 ～ 7	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	20	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	4 ～ 7	8	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	24	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	5 ～ 8	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	24	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	5 ～ 8	8	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	25	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	5 ～ 8	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	25	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	5 ～ 8	8	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	28	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	5 ～ 8	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	28	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	5 ～ 8	8	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	30	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	5 ～ 8	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	30	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	5 ～ 8	8	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	32	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	5 ～ 8	5	JIS B 1702 Class 5	N/A
-	1	7 Days	-	RoHS Requirements Fulfilled	Not Applicable	32	Shape B	Round hole+tap	[Resin] POM Blue (Polyacetal)	5 ～ 8	8	JIS B 1702 Class 5	N/A

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Basic information

Surface Treatment	Not Provided	Ground Tooth	Not Provided	Backlash	Provided
Heat Treatment	No	Cleaning Method	No Cleaning	Shaft Bore Tolerance	H7
Bearing	Without Bearing

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2,170Suggestion of an applicable part number.

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Basic Attributes

RoHS Information
- RoHS Requirements Fulfilled
Clear
Features, Areas of Application
Not Applicable
Clear
Number of Teeth(Teeth)
12

14

15

16

18

20

22

24

25

26

28

30

32

35

36

40

45

48

50

55

56

60

64

70

72

75

80

90

100

120
Clear
Shaft Bore Config.
- Round Hole
- Round hole+tap
Clear
Material
- Resin
  - MC Nylon
  - POM Blue (Polyacetal)
  - POM White (Polyacetal)
Clear
Shaft Bore Dia.(Ø)
6

8

10

12

14

15

16

18

20

25

30

35

40
[3-56/1Ø Unit(s)]
Clear
Tooth Width B(mm)
2

3

5

7

8

10

12

15

20

25

30

35
Clear
Bushing
- Metal Hub Insert (S45C Equivalent)
- Metal Hub Insert (SUS304)
- N/A
Clear
Type
- GEABA
- GEABAS
- GEABAT
- GEABM
- GEABMS
- GEABMT
- GEABP
- GEABPS
- GEABPT
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Shape
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- Shape B
- Shape K
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Optional Attributes

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Frequently Asked Questions (FAQ)

Question:
Can different modules be combined with each other?: Answer:
Since the module describes the division of the teeth along the pitch circle diameter, various modules cannot be combined into one pair of gears.
Question:
What is involute gearing?: Answer:
Evolved gearing is understood to be the convex production of a tooth flank. The sliding friction along the tooth flank can thus be minimized. This also reduces wear and tear.
Question:
What is the pressure angle?: Answer:
The pressure angle is defined as the angle of the highest drive force between two gears. A combination of different pressure angles is not recommended, since increased wear is to be expected.
Question:
Is the position of the keyway to the key-type specified?: Answer:
The keyway has no specified position reference to the tooth base or the head surface of the sprocket.
Question:
What is the reverse clearance?: Answer:
The reverse play arises at the moment of the direction of rotation of a spur gear pairing is changed. It describes the gap between the gear flanks of each tooth in engagement.