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Oldham Couplings Clamping Type (Part Numbers)
MiSUMi Economy
This is an economy item, The price is cheaper than the MISUMI standard product.
- RoHS
Part Number
Configured Part Number is shown.
Product Overview of Flexible Shaft Couplings
・Characteristic of Flexible Shaft Couplings
A Flexible Shaft Couplings is a part which purpose is to connect two different rotating bodies (motor shaft, ball screw, etc.) and transmit torque.
Protects equipment by absorbing axial deviations (eccentricity, declination, and axial amplitude) that occur between rotating bodies.
In the event of an overload, the coupling is first damaged and the connection is released to protect the power unit and the entire device.
Protects equipment by absorbing axial deviations (eccentricity, declination, and axial amplitude) that occur between rotating bodies.
In the event of an overload, the coupling is first damaged and the connection is released to protect the power unit and the entire device.
Dimensional Drawing of Flexible Shaft Couplings
Material table of Flexible Shaft Couplings
| Part of Flexible Shaft Couplings | Material of Flexible Shaft Couplings |  Surface Treatment |  Accessory |
| Hub | Aluminum Alloy | Clear Anodize | Hex Socket Clamp Screw |
| Spacer | PA66 | - |
Specification Table of Flexible Shaft Couplings
Please follow the selection steps Flexible Shaft Couplings
～ 
to select the part no. Please specify the shaft holediameter within the range of d1≤d2.
If the slip torque is less than the allowable torque, use it below the slip torque.
～ 
to select the part no. Please specify the shaft holediameter within the range of d1≤d2.Part No.(Type of Flexible Shaft Couplings· DL) | - |  d1 | - | d2 |
| E-LMPOC20L33 | - | 5 | - | 8 |
| E-LMPOC40L50 | - | 10 | - | 18 |
| Part No. | d1、d2Shaft Hole Dia.(d1≤d2) | |||||||||||||||||||||||||||||||
| Type of Flexible Shaft Couplings | D | L | ||||||||||||||||||||||||||||||
| E-LMPOC | 16 | L29 | 4 | 5 | 6 | 6.35 | ||||||||||||||||||||||||||
| 20 | L33 | 5 | 6 | 6.35 | 7 | 8 | ||||||||||||||||||||||||||
| 25 | L39 | 5 | 6 | 6.35 | 8 | 9 | 9.525 | 10 | 11 | 12 | ||||||||||||||||||||||
| 32 | L45 | 5 | 6 | 8 | 9 | 9.525 | 10 | 11 | 12 | 12.7 | 14 | 15 | 16 | |||||||||||||||||||
| 40 | L50 | 8 | 9 | 9.525 | 10 | 11 | 12 | 14 | 15 | 16 | 17 | 18 | 19 | |||||||||||||||||||
| 44 | L46 | 8 | 9 | 9.525 | 10 | 11 | 12 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | |||||||||||||||||
| 50 | L53 | 10 | 11 | 12.7 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | |||||||||||||||||||
| 50 | L58 | 10 | 11 | 12.7 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | |||||||||||||||||||
| 55 | L57 | 10 | 11 | 12.7 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | |||||||||||||||||
| 63 | L71 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | ||||||||||||||||||
| 70 | L77 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | 38 | ||||||||||||||||
If the slip torque is less than the allowable torque, use it below the slip torque.| Part No. | F | Clamp Screw | Rated Torque (N·m) | Mass (g) | |||
| Type of Flexible Shaft Couplings | D | L | M | Tightening torque N.m | |||
| E-LMPOC | 16 | L29 | 3 | M2.5 | 1 | 0.7 | 12 |
| 20 | L33 | 3.8 | M2.5 | 1 | 1.2 | 19 | |
| 25 | L39 | 3.9 | M3 | 1.5 | 2 | 35 | |
| 32 | L45 | 4.5 | M4 | 3.5 | 4.5 | 67 | |
| 40 | L50 | 5.5 | M5 | 8 | 9 | 114 | |
| 44 | L46 | 7.8 | M5 | 8 | 12 | 140 | |
| 50 | L53 | 7.5 | M6 | 13 | 19 | 190 | |
| 50L | L58 | 6.3 | M6 | 13 | 19 | 215 | |
| 55 | L57 | 6.3 | M6 | 13 | 25 | 260 | |
| 63 | L71 | 7.8 | M8 | 28 | 33 | 455 | |
| 70 | L77 | 7.7 | M8 | 28 | 56 | 520 | |
Alterations of Flexible Shaft Couplings
| Flexible Shaft Couplings Dia. d1 · d2 | b(Keyway Width) | t Keyway Depth | Keyway Nominal Dim. b X h | |
| LK | RK | |||
| 8～10 | 3 | 3 | 1.4 | 3x3 |
| 11～12 | 4 | 4 | 1.8 | 4x4 |
| 13～17 | 5 | 5 | 2.3 | 5x5 |
| 18～22 | 6 | 6 | 2.8 | 6x6 |
| 23～30 | 8 | 8 | 3.3 | 8x7 |
| 31～38 | 10 | 10 | 3.3 | 10x8 |
Product Features of Flexible Shaft Couplings
By connecting a cross spacer in the middle of the Flexible Shaft Couplings, it can be freely disassembled and installed.
The spacer uses PA66 and has excellent wear resistance, corrosion resistance, and electrical insulation.
The sliding design compensates for radial and angular deviations more effectively.
The spacer uses PA66 and has excellent wear resistance, corrosion resistance, and electrical insulation.
The sliding design compensates for radial and angular deviations more effectively.
Example Use of Flexible Shaft Couplings
Precautions of Flexible Shaft Couplings
Operating Temperature of Flexible Shaft Couplings: －20℃～80℃. d1、d2
Eccentricity, declination angle and axial amplitude are all allowable values of a single term. If multiple deviations occur at the same time, the allowable value of each deviation is reduced to 1/2 of the original value.
Eccentricity, declination angle and axial amplitude are all allowable values of a single term. If multiple deviations occur at the same time, the allowable value of each deviation is reduced to 1/2 of the original value.
Part Number
CAD Data download and 3D preview are not available because the part number has not yet been determined.
- *In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
- Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.
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| Part Number |
|---|
| E-LMPOC16L29-[4,5,6,6.35]-[4,5,6,6.35] |
| E-LMPOC20L33-[5,6,6.35,7,8]-[5,6,6.35,7,8] |
| E-LMPOC25L39-[5,6,6.35,8,9,9.525,10,11,12]-[5,6,6.35,8,9,9.525,10,11,12] |
| E-LMPOC32L45-[5,6,6.35,8,9,9.525,10,11,12,12.7,14,15,16]-[5,6,6.35,8,9,9.525,10,11,12,12.7,14,15,16] |
| E-LMPOC40L50-[8,9,9.525,10,11,12,14,15,16,17,18,19]-[8,9,9.525,10,11,12,14,15,16,17,18,19] |
| E-LMPOC44L46-[8,9,9.525,10,11,12,14,15,16,17,18,19,20,22]-[8,9,9.525,10,11,12,14,15,16,17,18,19,20,22] |
| E-LMPOC50L53-[10,11,12.7,14,15,16,17,18,19,20,22,24]-[10,11,12.7,14,15,16,17,18,19,20,22,24] |
| E-LMPOC50L58-[10,11,12.7,14,15,16,17,18,19,20,22,24]-[10,11,12.7,14,15,16,17,18,19,20,22,24] |
| E-LMPOC55L57-[10,11,12.7,14,15,16,17,18,19,20,22,24,25,28]-[10,11,12.7,14,15,16,17,18,19,20,22,24,25,28] |
| E-LMPOC63L71-[14,15,16,17,18,19,20,22,24,25,28,30,32]-[14,15,16,17,18,19,20,22,24,25,28,30,32] |
| E-LMPOC70L77-[14,15,16,17,18,19,20,22,24,25,28,30,32,35,38]-[14,15,16,17,18,19,20,22,24,25,28,30,32,35,38] |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Shaft Bore Dia.1 d1 (or d) (Ø) | Shaft Bore Dia. 2 d2 (or d) (Ø) | O.D. (Ø) | Overall Length (mm) | Allowable Torque (N•m) | Allowable Lateral Misalignment (mm) | Max. Rotational Speed (r/min) | Moment of Inertia (kg・m2) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
- | 1 Piece(s) | 9 Day(s) | 4 ～ 6.35 | 4 ～ 6.35 | 16 | 29 | 0.7 | 0.8 | 9000 | 3.5×10-7 | ||
- | 1 Piece(s) | 9 Day(s) | 5 ～ 8 | 5 ～ 8 | 20 | 33 | 1.2 | 1.2 | 7000 | 1.5×10-6 | ||
- | 1 Piece(s) | 9 Day(s) | 5 ～ 12 | 5 ～ 12 | 25 | 39 | 2 | 1.6 | 6000 | 3.2×10-6 | ||
- | 1 Piece(s) | 9 Day(s) | 5 ～ 16 | 5 ～ 16 | 32 | 45 | 4.5 | 2 | 4800 | 1.5×10-5 | ||
- | 1 Piece(s) | 9 Day(s) | 8 ～ 19 | 8 ～ 19 | 40 | 50 | 9 | 2.4 | 3600 | 4.2×10-5 | ||
- | 1 Piece(s) | 9 Day(s) | 8 ～ 22 | 8 ～ 22 | 44 | 46 | 12 | 2.5 | 3500 | 4.5×10-5 | ||
- | 1 Piece(s) | 14 Day(s) | 10 ～ 24 | 10 ～ 24 | 50 | 53 | 19 | 2.6 | 3000 | 1.0×10-4 | ||
- | 1 Piece(s) | 9 Day(s) | 10 ～ 24 | 10 ～ 24 | 50 | 58 | 19 | 3 | 3000 | 1.1×10-4 | ||
- | 1 Piece(s) | 9 Day(s) | 10 ～ 28 | 10 ～ 28 | 55 | 57 | 25 | 3.2 | 3000 | 1.3×10-5 | ||
- | 1 Piece(s) | 9 Day(s) | 14 ～ 32 | 14 ～ 32 | 63 | 71 | 33 | 3 | 2550 | 3.5×10-4 | ||
- | 1 Piece(s) | 9 Day(s) | 14 ～ 38 | 14 ～ 38 | 70 | 77 | 56 | 3.5 | 2500 | 4.1×10-4 |
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Basic Information
| Series Name | Oldham | Application | Standard / For Servo Motors / Stepping Motor | Features | High Torsional Rigidity / High Torque Type |
|---|---|---|---|---|---|
| Body Material | Aluminum Alloy | Allowable Angular Misalignment(deg) | 3 | Product Category | Coupling Main Body |
| Buffer Material | Nylon | Allowable Axial Misalignment(mm) | ±0.2 | Shaft Tightening Method | Fixing Bolt |
| Shaft Hole Shape | Standard | Shaft Tightening Method | 固定螺栓 | Spacer Material | PA66 |
Specification/Dimensions
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Shaft Bore Dia.1 d1 (or d)(Ø)
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Shaft Bore Dia. 2 d2 (or d)(Ø)
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O.D.(Ø)
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Overall Length(mm)
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Allowable Torque(N•m)
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Allowable Lateral Misalignment(mm)
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Max. Rotational Speed(r/min)
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type
- E-LMPOC
-
CAD
- 2D
- 3D
Days to Ship
-
- All
- 9 Day(s) or Less
- 14 Day(s) or Less
Specify Alterations
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Frequently asked question (FAQ)
- Question: What is a coupling?
- Answer: A coupling is a part that connects two different rotating bodies (motor shaft, ball screw, etc.) and aims at transmitting torque. The load of assembly adjustment is reduced by absorbing the axis deviation (lateral misalignment, angular misalignment and axial amplitude) between rotating bodies. And in case of accidental overload, the coupling is destroyed and the rotating bodies are disconnected to protect the expensive power part and the whole device.
- Question: Is there any reference available for lateral misalignment and angular misalignment of the product?
- Answer: Lateral misalignment, angular misalignment and axial amplitude are all single allowable values. If there are multiple deviations at the same time, the allowable value of each deviation will be reduced to 1/2 of the original value.
- Question: What are the product features?
- Answer: The middle of the coupling is connected with a cross slider, which can be disassembled freely. Large radial and angular deviations are allowed.
- Question: Is there a keyway machining for the inner hole of the product?
- Answer: Additional keyways can be machined on the product body. Please refer to MISUMI manual and website.
- Question: Do I need to assemble the product myself when it arrives?
- Answer: The products are shipped from different places and may arrive in bulk, so please just put them together yourself.
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