Bellow couplings / half-shell clamping / bellows: stainless steel / body: aluminium / KB4HC / KBK (Part Numbers - CAD Download)

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· Backlash-free metal bellows coupling with compact split hubs
· For shaft diameters from 10 - 70mm
· High torsional stiffness, compensation of shaft misalignment at low restoring forces
· Radial assembly! Due to the split hub design shafts can be mounted and adjusted before the assembly of the coupling
· Leightweight ~ space saving ~ fast assembly / disassembly
· Torque range: 18 - 500Nm

Part Number

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Product specification
Part Numbers
Catalog

Metal Bellows Coupling with Split Hubs, Compact, KB4HC | 18 ~ 500

Product Information

Material

bellows - stainless steel
hub - aluminium

Hub

bore tolerance: H7

Temperature Range

-30 °C ~ 120 °C

Keyway

optional acc. DIN 6885
biggest bore marked with a #

Drawing

Order Code


Order Code	KB4HC / 60	-	67	-	20	-	20	-	(S)
	Type / size		Length L		ØD1 (H7)		ØD2 (H7)		Options

Specification Table

Size	Torque TKN (Nm)	Dimensions (mm)										Technical Data
		L	Ø A	D1/D2	H	C	E	W	K	B	F	Mass (kg)	Moment of Inertia J (g m²)	Spring Stiffness			Misalignment			max. speed (min-1)
		Length	Outer Ø	Bore Sizes (H7) min~max							Screw (ISO4762) TA (Nm)	Mass (kg)	Moment of Inertia J (g m²)	torsional CT 10³ (Nm/rad)	radial CR (N/mm)	axial CA (N/mm)	radial ΔKr (mm)	axial ΔKa (mm)	angular ΔKw (°)	max. speed (min-1)
18	18	58	45	10-25.4	17	5.5	17.5	36	11	47.4	M5	0.07	0.03	20	205	50	0.2	0.5	1.5	12800
18	18	66	45	10-25.4	17	5.5	17.5	44	11	47.4	8	0.12	0.04	15	82	36	0.25	0.5	2	12800
30	30	58	56	10-32	20	7.3	21	31	13.5	56.4	M6	0.26	0.13	38	720	50	0.15	0.6	1.5	10300
30	30	66	56	30#	20	7.3	21	39	13.5	56.4	15	0.27	0.14	28	225	28	0.25	1	2	10300
60	60	67	66	12-35	23	8.6	24	33	17	66.2	M8	0.38	0.28	75	1150	90	0.15	0.6	1.5	8700
60	60	77	66	12-35	23	8.6	24	43	17	66.2	40	0.42	0.31	50	340	50	0.25	1	2	8700
80	80	78	82	12-44	28	9.8	27	42	18	82.9	M10	0.70	0.78	128	1200	80	0.2	0.5	1.5	6900
80	80	89	82	12-44	28	9.8	27	53	18	82.9	84	0.76	0.85	75	400	50	0.25	0.8	2	6900
150	150	78	82	14-44	28	9.8	27	42	18	82.9	M10	0.73	0.82	155	2020	145	0.2	0.5	1.5	6900
150	150	89	82	14-44	28	9.8	27	53	18	82.9	84	0.80	0.89	105	595	85	0.25	0,8	2	6900
200	200	83	90	16-47	31	10.8	29	43	20	90.8	M12	0.89	1.19	175	2500	145	0.2	0.5	1.5	6400
200	200	94	90	16-47	31	10.8	29	54	20	90.8	125	0.95	1.27	120	460	82	0.25	0.8	2	6400
300	300	94	110	20-60	40	11.8	32.5	50	22	110	M12	1.37	2.74	502	6300	280	0.2	0.5	1.5	6000
300	300	105	110	20-60	40	11.8	32.5	61	22	110	145	1.43	2.86	285	1400	145	0.25	0.8	2	6000
500	500	100	122	25-70	42	13.3	36	48	26	122	M12	1.81	4.45	690	7790	100	0.2	0.5	1.5	5000
500	500	111	122	25-70	42	13.3	36	59	26	122	145	1.91	4.69	320	970	85	0.25	1	2	5000

Data to be displayed: 30; 45; 60

Part Number
KB4HC/500-111-[25-70/1]-[25-70/1]
KB4HC/500-111-[25-70/1]-N[25-70/1]
KB4HC/500-111-N[25-70/1]-[25-70/1]
KB4HC/500-111-N[25-70/1]-N[25-70/1]

Related to	Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	RoHS	Shaft Bore Dia. (machined) D1 (mm)	Shaft Bore Dia. (machined) D2 (mm)	Outer Dia. A (mm)	Length L (mm)	Allowable Torque (Nm)	Max. Rotational Speed (r/min)	Allowable Lateral Misalignment (mm)	Allowable Angular Misalignment (deg)	Allowable Axial Clearance (±) (mm)	Applicable Range (Bore 1)	Applicable Range (Bore 2)	Maximum D1 Bore Size with Keyway	Maximum D2 Bore Size with Keyway	Keyway D1	Keyway D2
Data sheet	-	1	17 Days	10	25 ～ 70	25 ～ 70	122	111	500	5000	0.25	2	1	25-70	25-70	70	70	No	No
Data sheet	-	1	17 Days	10	25 ～ 70	25 ～ 70	122	111	500	5000	0.25	2	1	25-70	25-70	70	70	No	Yes
Data sheet	-	1	17 Days	10	25 ～ 70	25 ～ 70	122	111	500	5000	0.25	2	1	25-70	25-70	70	70	Yes	No
Data sheet	-	1	17 Days	10	25 ～ 70	25 ～ 70	122	111	500	5000	0.25	2	1	25-70	25-70	70	70	Yes	Yes

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Basic information

Type	Bellows Type	Application	Standard / Servo Motor / Stepping Motor	Feature	High Torsional Rigidity / High Torque / High Accuracy / High Durability / No Backlash / Low Moment of Inertia
Bellows Part Material	Stainless Steel

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Basic Attributes

Shaft Bore Dia. (machined) D1(mm)
[10-25.4/0.1mm Unit(s)][10-70/1mm Unit(s)]
Clear
Shaft Bore Dia. (machined) D2(mm)
[10-25.4/0.1mm Unit(s)][10-70/1mm Unit(s)]
Clear
Outer Dia. A(mm)
45

56

66

82

90

110

122
Clear
Length L(mm)
58

66

67

77

78

83

89

94

100

105

111
Clear
Allowable Torque(Nm)
18

30

60

80

150

200

300

500
Clear
Max. Rotational Speed(r/min)
5000

6000

6400

6900

8700

10300

12800
Clear
Allowable Lateral Misalignment(mm)
0.15

0.2

0.25
Clear
Allowable Angular Misalignment(deg)
1.5

2
Clear
Applicable Range (Bore 1)
10-30

10-25,4

10.25-4

12-44

12-35

14-44

16-48

20-60

25-70
Clear
Applicable Range (Bore 2)
10-30

10-25,4

10.25-4

12-44

12-35

14-44

16-48

20-60

25-70
Clear
Maximum D1 Bore Size with Keyway
25.4

30

35

44

47

60

70
Clear
Maximum D2 Bore Size with Keyway
25.4

30

35

44

47

60

70
Clear
Keyway D1
- No
- Yes
Clear
Keyway D2
- No
- Yes
Clear
Type
- KB4HC
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