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    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.
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MOL Series - Oldham Clamp Style Coupling Hubs w/o Keyway - Metric

MOL Series - Oldham Clamp Style Coupling Hubs - Metric Bores
MOL Series - Oldham Clamp Style Coupling Hubs w/o Keyway - Metric

MOL Series - Oldham Clamp Style Coupling Hubs - Metric Bores
MOL Series - Oldham Clamp Style Coupling Hubs w/o Keyway - Metric

MOL Series - Oldham Clamp Style Coupling Hubs - Metric Bores
MOL Series - Oldham Clamp Style Coupling Hubs w/o Keyway - Metric

MOL Series - Oldham Clamp Style Coupling Hubs - Metric Bores
MOL Series - Oldham Clamp Style Coupling Hubs w/o Keyway - Metric

MOL Series - Oldham Clamp Style Coupling Hubs - Metric Bores
Description  N/A MOL16C-HUB-3MM-NKW N/A MOL16C-HUB-4MM-NKW N/A MOL16C-HUB-5MM-NKW N/A MOL16C-HUB-6MM-NKW N/A MOL20C-HUB-3MM-NKW
Bore Size N/A 3.00 mm N/A 4.00 mm N/A 5.00 mm N/A 6.00 mm N/A 3.00 mm
Coupling Type N/A Oldham, Three Piece Design w/ Insert
Coupling Size N/A MOL16C N/A MOL16C N/A MOL16C N/A MOL16C N/A MOL20C
Material N/A Aluminum
Clamp Screw Size N/A M2.6
Keyway Size N/A No Keyway
Length thru Bore N/A 0.492 in12.50 mm N/A 0.492 in12.50 mm N/A 0.492 in12.50 mm N/A 0.492 in12.50 mm N/A 0.551 in14.00 mm
Style N/A Clamp Screw
Outside Diameter N/A 0.63 in16.00 mm N/A 0.63 in16.00 mm N/A 0.63 in16.00 mm N/A 0.63 in16.00 mm N/A 0.787 in20.00 mm
Overall Coupling Length N/A 1.142 in29.00 mm N/A 1.142 in29.00 mm N/A 1.142 in29.00 mm N/A 1.142 in29.00 mm N/A 1.299 in33.00 mm
Color N/A Silver/Metallic
Max. Operating Temperature N/A 176.00 ºF80.00 ºC
Nominal Torque N/A 6.20 in·lb N/A 6.20 in·lb N/A 6.20 in·lb N/A 6.20 in·lb N/A 10.60 in·lb
Min. Bore (Dimensions ID1/ID2) N/A 0.118 in3.00 mm
Max. Bore (Dimensions ID1/ID2) N/A 0.236 in6.00 mm N/A 0.236 in6.00 mm N/A 0.236 in6.00 mm N/A 0.236 in6.00 mm N/A 0.315 in8.00 mm
Max Speed N/A 9500.00 rpm N/A 9500.00 rpm N/A 9500.00 rpm N/A 9500.00 rpm N/A 7600.00 rpm
Angular Misalignment N/A 3.00 º
Parallel Misalignment N/A 0.400 in N/A 0.400 in N/A 0.400 in N/A 0.400 in N/A 0.600 in
Torsional Stiffness N/A 620.00 in·lb/rad N/A 620.00 in·lb/rad N/A 620.00 in·lb/rad N/A 620.00 in·lb/rad N/A 974.00 in·lb/rad
Moment of Inertia N/A 0.001 lb·in² N/A 0.001 lb·in² N/A 0.001 lb·in² N/A 0.001 lb·in² N/A 0.004 lb·in²
Weight N/A 0.02 oz
Weight (Complete Coupling w/ Min. Bores) N/A 0.40 oz11.00 g N/A 0.40 oz11.00 g N/A 0.40 oz11.00 g N/A 0.40 oz11.00 g N/A 0.80 oz22.00 g
Cubic inches N/A 0.19527 in³ N/A 0.19527 in³ N/A 0.19527 in³ N/A 0.19527 in³ N/A 0.34127 in³