Oldham Couplings Clamping Type
Brand :
MISUMI
Caution
Product Description
Oldham Couplings are an economy item, The price is cheaper than the MISUMI standard product.They offer a wide variety of sizes to choose from.
[Feature]
● Shaft Hole Diameter Minimum/Maximum (mm.): 4 and 38
● Outside Diameter Minimum/Maximum (mm.): 16 and 70
● Overall Length Minimum/Maximum (mm.) : 29 and 77
● Material :
Hub - Aluminum Alloy
Spacer - PA66
[Application]
Oldham Couplings are commonly used in various applications in factory automation systems
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.