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All Product Types > INDUSTRIAL MOTION PRODUCTS > Couplings & Power Transmission Parts Catalog > Motion Control Couplings > Oldham Style Couplings (MOL Series) > MOL Series - Oldham Clamp Style Coupling Hubs - Inch (Imperial) Bores > Part Number 68514458096  
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Part Number 68514458096, MOL Series - Oldham Clamp Style Coupling Hubs - Inch (Imperial) Bores


    The Lovejoy Oldham coupling is a precision engineered, torsionally stiff, three-piece coupling suitable for a great many applications ranging from incremental control of fluid valves to highly dynamic drives in closed loop servo systems. It accommodates misalignment mechanically through a floating disc that engages tenons machined out of the hubs. As the coupling rotates, the floating disc aligns with each hub alternately to an extent demanded by the alignment error. Because parallel misalignment is accommodated by lateral displacement, the Lovejoy Oldham coupling can handle severe alignment errors within a short space envelope. This is a valuable feature in densely packaged and blind assemblies, or where misalignment can accelerate the erosion of shaft bearings. The Lovejoy Oldham coupling features raised dots on both sides of the floating disc which act as an effective spacer.

    The dots keep the face of the tenon from contacting the bottom of the floating disc and allows the coupling greater angular misalignment capability. A very important effect is that the spacer dots will greatly reduce the bending load on the shafts because of the freedom of the floating disc.
    The MOL Coupling consists of two hubs and one center member.




Unit of Measure: Imperial Metric Both

Specifications  · Dimensional Data  · Performance Data  · Features  · Notes

Specifications

Description 
MOL20C-HUB-5/16-NKW

Coupling Type
Oldham, Three Piece Design w/ Insert

Coupling Size
MOL20C

Material
Aluminum

Style
Clamp Screw

Color
Silver/Metallic

Weight
0.02 oz

Weight (Complete Coupling w/ Min. Bores)
0.80 oz


Dimensional Data

Bore Size 
5/16 in

Clamp Screw Size
M2.6

Keyway Size
No Keyway

Length thru Bore
0.551 in
14.00 mm

Outside Diameter
0.787 in
20.00 mm

Overall Coupling Length
1.299 in
33.00 mm

Min. Bore (Dimensions ID1/ID2)
0.118 in
3.00 mm

Max. Bore (Dimensions ID1/ID2)
0.315 in
8.00 mm

Cubic inches
0.34127 in³


Performance Data

Max. Operating Temperature
176.00 ºF

Nominal Torque
10.60 in·lb

Max Speed
7600.00 rpm

Angular Misalignment
3.00 º

Parallel Misalignment
0.600 in

Torsional Stiffness
974.00 in·lb/rad

Moment of Inertia
0.004 lb·in²


Features

Features 
  • High torsional stiffness
  • Maximum temperature 176° F (80° C)
  • Aluminum hubs with a Polyacetal insert
  • Available in setscrew or clamping style hubs


Notes

Notes 
  • Nominal torque, torsional stiffness, weight and moment of inertia are based on minimum bore size.


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