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Número da peça:
candidatos encontrados.MCOCG (Standard Bore)
MCOCGLK (Keywayed Bore d1)
MCOCGRK (Keywayed Bore d2)
MCOCGWK (Keywayed Bore d1, d2)
d1 side
d2 side
Shaft bore diameter d1, d2 | b | t | Key Nominal Dim. (b x h) | ||
Standard Dimensions | Tolerance | Standard Dimensions | Tolerance | ||
6 to 7.9 | 2 | ±0.0125 | 1.0 | +0.10 0 | 2 × 2 |
8 to 10 | 3 | 1.4 | 3 × 3 | ||
10.1 to 12 | 4 | ±0.015 | 1.8 | 4 × 4 | |
12.1 to 17 | 5 | 2.3 | 5 × 5 | ||
17.1 to 22 | 6 | 2.8 | 6 × 6 | ||
22.1 to 30 | 8 | ±0.018 | 3.3 | +0.20 0 | 8 × 7 |
30.1 to 32 | 10 | 10 × 8 |
Standard Bore | Keywayed Bore | [M] Material | [S] Surface Treatment | Operating Temp. Range °C | ||||
d1 (One Side) | d2 (One Side) | d1, d2 (Both Sides) | Hub | Spacer | Hex Socket Head Cap Screw | Hex Socket Head Cap Screw | ||
MCOCG | MCOCGLK | MCOCGRK | MCOCGWK | EN 1.4301 Equiv. (Sintered) | Aluminum Bronze (Solid Lubricant Embedded) | EN 1.7220 Equiv. | Black Oxide Film | -50 to 200 |
Part Number | — | Shaft Bore Dia. d1 | — | Shaft Bore Dia. d2 |
MCOCG20 | — | 6 | — | 6 |
MCOCGLK30 | — | 8 | — | 12 |
MCOCGWK38 | — | 10 | — | 12 |
Part Number | d1, d2 Selection (However, d1 ≤ d2) [ ! ] Hole Dia. 6 or more is available for Keywayed Bore | D | D1 | D2 | d3 | L | ℓ | A | F | Clamp Screw | ||||||||||||||||
Type | No. | M | Tightening Torque (N⋅m) | |||||||||||||||||||||||
MCOCG MCOCGLK MCOCGRK MCOCGWK | 15 | 4 | 5 | 6 | 14.5 | 15 | 16 | 7.2 | 18.4 | 6.6 | 4.5 | 3.2 | M2.5 | 1.0 | ||||||||||||
17 | 5 | 6 | 6.35 | 16.8 | 17.5 | 19 | 8.2 | 24.4 | 9 | 5 | 4 | M3 | 1.8 | |||||||||||||
20 | 6 | 6.35 | 7 | 8 | 9.53 | 10 | 20 | 21 | 23 | 9 | 27.2 | 10 | 7 | 4.5 | ||||||||||||
26 | 6 | 6.35 | 7 | 8 | 9.53 | 10 | 11 | 12 | 26 | 27 | 29 | 12 | 30.4 | 11.5 | 8.4 | 5 | M4 | 3.0 | ||||||||
30 | 8 | 10 | 30 | 31 | 32 | 13 | 33 | 12 | 8.5 | 6 | M5 | 8.0 | ||||||||||||||
12 | 14 | 9 | M4 | 4.5 | ||||||||||||||||||||||
34 | 10 | 11 | 12 | 14 | 15 | 16 | 34 | 35 | 37 | 14 | 34 | 13 | 11 | M5 | 8.0* | |||||||||||
38 | 10 | 12 | 14 | 15 | 16 | 38 | 41 | 41 | 17 | 39.5 | 15 | 11.5 | 7 | M5 | 8.0 | |||||||||||
18 | 20 | 13.7 |
Part Number | Allowable Torque (N⋅m) | Allowable Angular Misalignment (°) | Allowable Lateral Misalignment (mm) | Static Torsional Spring Constant (N·m/rad) | Max. Rotational Speed (r/min) | Moment of Inertia (kg⋅m2) | Allowable Axial Misalignment (mm) | Mass (g) | |
Type | No. | ||||||||
MCOCG MCOCGLK MCOCGRK MCOCGWK | 15 | 3 | 1.5 | 0.5 | 800 | 8000 | 6 ×10−7 | ±0.1 | 17 |
17 | 5 | 0.5 | 1000 | 7000 | 1.2 × 10−6 | ±0.1 | 30 | ||
20 | 7 | 0.5 | 2200 | 6000 | 3 ×10−6 | ±0.1 | 48 | ||
26 | 10 | 0.8 | 4000 | 5000 | 1 ×10−5 | ±0.2 | 90 | ||
30 | 30 | 1 | 5500 | 5000 | 2.5 × 10−5 | ±0.3 | 120 | ||
34 | 32 | 1 | 8000 | 4000 | 4 ×10−5 | ±0.2 | 172 | ||
38 | 50 | 1 | 11000 | 4000 | 1 ×10−4 | ±0.3 | 246 |
Alterations | Shaft Bore Dia. | Keyway Width | |||||||||||||||||||||||||||||||||||||||
Code | LDC(Left Shaft) | RDC(Right Shaft) | KLH(Left Shaft) | KRH(Right Shaft) | |||||||||||||||||||||||||||||||||||||
Spec. | Ordering Example LDC7.8 RDC9.3 ![]() ■LDC and RDC Specifiable Range (0.1 mm Increments)
| Ordering Example KLH4 KRH4 ![]() ![]()
[ ! ]Only shaft bore diameters 8, 10 and 12 can be specified [ ! ]Applicable to Keywayed Bore only. |
Part Number | Shaft Bore Dia. | Keyway Width | |||
Hole Type | Type | LDC | RDC | KLH | KRH |
d1(Left) | d2(Right) | d1(Left) | d2(Right) | ||
Standard Bore | MCOCG | ● | ● | Not Possible | |
ー | ● | ||||
● | ー | ||||
ー | ー | ||||
Keywayed Bore d1(Left) | MCOCGLK | ● | ● | ー | Not Possible |
ー | ● | ● | |||
● | ー | ー | |||
ー | ー | ● | |||
Keywayed Bore d2(Right) | MCOCGRK | ● | ● | Not Possible | ー |
ー | ● | ー | |||
● | ー | ● | |||
ー | ー | ● | |||
Keywayed Bore d1, d2 (Right and Left) | MCOCGWK | ● | ● | ー | ー |
ー | ● | ● | ー | ||
● | ー | ー | ● | ||
ー | ー | ● | ● |
Coupling Characteristics | Motor | |||||
Type | Zero Backlash | High Torque | Allowable Lateral Misalignment Allowable Angular Misalignment | Servo | Stepping Motor Compact Servo | General Purpose |
Disc type | ◎ | ◎ | 〇 | ◎ | 〇 | × |
Oldham type | × | ◎ | ◎ | × | × | ◎ |
Slit type | ◎ | 〇 | 〇 | 〇 | ◎ | × |
Número da peça |
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Preço unitário (excluindo IVA)(Preço unitário incluindo IVA) | Data de envio standard |
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- ( - ) | 7 dias úteis |
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- Material: aluminum, aluminum alloy, steel, stainless steel, plastic
- Coupling buffer material: polyacetal, polyurethane, nylon, aluminum bronze, carbon fibre reinforced polymer (CFRP)
- Disc material: stainless steel, polyimide, carbon fibre (carbon)
- Fastening: hub clamping, half shell clamping, threaded pin clamping, clamping sleeve, keyway
- Design: slit coupling, disc coupling (servo coupling), Oldham coupling, dog coupling, jaw coupling, bellow coupling, metal bellow coupling, elastomer coupling
- ISO tolerances: H8
- Shaft diameter: 1 to 45 mm
- Outer diameter: 6 to 95 mm
- Length: 8.4 to 100 mm
- Offset: angle offset, radial offset, axial offset
Design Overview
A shaft coupling, also called a compensating coupling, is generally used for the transmission of torque for mechanical engineering. Flexible shaft couplings (non-rigid) can compensate for lateral, axial and angular offsets (misalignment). Therefore, these are common connecting elements between motors and axles/shafts or even ball screws.
There are various types of designs, such as the jaw couplings, disc couplings (servo couplings), slit couplings, bellow couplings, Oldham couplings and many others, which are selected depending on the type of misalignment. You can determine which design is the right one for transmission in your application with the Coupling Selection Method available as a PDF.
When the shaft coupling is professionally installed, the transmission of rotational forces should be slip-free. To do this, the appropriate shaft coupling must be selected depending on the application. Here, it is important to observe the degree of misalignment, the maximum speed of rotation and the permissible torque of the compensation coupling and not to exceed these values during operation. If several misalignments occur at the same time, it is recommended to reduce the maximum value of the specified misalignment by approximately half.
The most commonly used elastomer coupling is the jaw coupling, which consists of a plastic buffer with damping properties. As a result, shocks and vibrations in a drive system can be damped, which protects adjacent components in the transmission of force. Our product range offers you alternative materials for the elastomers. These include among others aluminum bronze and carbon fibre-reinforced plastic.
The different shaft connections on the compensation couplings allow various connection variants for assembly. For this purpose, hub clamping, half shell clamping, slot clamping, threaded pin clamping, chip sleeve and keyways are available.
If a keyway is selected for a MISUMI shaft coupling, it is recommended obtaining the MISUMI machine key, as it is best to combine these.
A shaft coupling can be used for precise positioning. These are often combined together with slide screws or ball screws. A disc clutch (servo coupling) is suitable for this application, since it has a high torsional rigidity.
In addition to the standardized diameter of the shaft bore, MISUMI offers the option LDC and RDC, which allows the drill diameter to be adjusted to the shaft end in 0.1 mm increments.
Shaft coupling with servo motor and ball screw
(1) Servo motor, (2) disc coupling (servo coupling), (3) ball screw
Slit coupling with encoder
(1) Bearing with housing, (2) shaft coupling, (3) motor, (4) axles/shafts
Engine test stand with Oldham coupling
(1) X-axis positioning stage, (2) performance test station, (3) shaft coupling, (4) brackets, L-shaped
Shaft coupling with motor and gearbox
(1) Motor, (2) Shaft coupling, (3) Conversion/Reducing gears, (4) Timing pulleys / Idlers