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Oldham Couplings Clamping Type

Oldham Couplings Clamping Type

This is an economy item, The price is cheaper than the MISUMI standard product.

Part Number

Configured Part Number is shown.

Product Overview
・Characteristic
A coupling 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.
Dimensional Drawing
Drawing
Material table
PartMaterial Surface Treatment  Accessory
HubAluminum AlloyClear AnodizeHex Socket Clamp Screw
SpacerPA66-
Specification Table
Please follow the selection steps~ to select the part no. Please specify the shaft hole diameter within the range of d1≤d2.
Part No.(Type·DL)-d1-d2
E-LMPOC20L33-5-8
E-LMPOC40L50-10-18
 
Part No.d1d2Shaft Hole Dia.(d1≤d2)
TypeDL
E-LMPOC16L294566.35                          
20L33 566.3578                        
25L39 566.35 899.525101112                   
32L45 56  899.52510111212.7141516               
40L50     899.525101112 141516171819            
44L46     899.525101112 1415161718192022          
50L53        1011 12.7141516171819202224         
50L58        1011 12.7141516171819202224         
55L57        1011 12.71415161718192022242528       
63L71            14151617181920222425283032     
70L77            141516171819202224252830323538   

If the slip torque is less than the allowable torque, use it below the slip torque.
Part No.FClamp ScrewRated Torque
(N·m)
Mass
(g)
TypeDLMTightening torque N.m
E-LMPOC16L293M2.510.712
20L333.8M2.511.219
25L393.9M31.5235
32L454.5M43.54.567
40L505.5M589114
44L467.8M5812140
50L537.5M61319190
50LL586.3M61319215
55L576.3M61325260
63L717.8M82833455
70L777.7M82856520
 
Alterations
alteration
Shaft Hole Dia.
d1 · d2
b(Keyway Width)t
Keyway Depth
Keyway Nominal Dim.
b X h
LKRK
8~10331.43x3
11~12441.84x4
13~17552.35x5
18~22662.86x6
23~30883.38x7
31~3810103.310x8
Product Features
By connecting a cross spacer in the middle of the coupling, 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.
Example of Use
Example of Use
Precautions
Operating Temperature: -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.
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 NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to Ship轴孔经(加工完毕)d1
(Ø)
轴孔经(加工完毕)d2
(Ø)
外径D
(Ø)
全长L
(mm)
Allowable Torque
(N•m)
Allowable Lateral Misalignment
(mm)
Max. Rotational Speed
(r/min)
Moment of Inertia
(kg・m2)

-

1 Piece(s) 6 Day(s) 4 ~ 6.354 ~ 6.3516290.70.890003.5×10-7

-

1 Piece(s) 5 Day(s) 5 ~ 85 ~ 820331.21.270001.5×10-6

-

1 Piece(s) 5 Day(s) 5 ~ 125 ~ 12253921.660003.2×10-6

-

1 Piece(s) 5 Day(s) 5 ~ 165 ~ 1632454.5248001.5×10-5

-

1 Piece(s) 6 Day(s) 8 ~ 198 ~ 19405092.436004.2×10-5

-

1 Piece(s) 6 Day(s) 8 ~ 228 ~ 224446122.535004.5×10-5

-

1 Piece(s) Quote 10 ~ 2410 ~ 245053192.630001.0×10-4

-

1 Piece(s) 6 Day(s) 10 ~ 2410 ~ 24505819330001.1×10-4

-

1 Piece(s) 6 Day(s) 10 ~ 2810 ~ 285557253.230001.3×10-5

-

1 Piece(s) 6 Day(s) 14 ~ 3214 ~ 32637133325503.5×10-4

-

1 Piece(s) 6 Day(s) 14 ~ 3814 ~ 387077563.525004.1×10-4

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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 Spacer Material PA66

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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