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  • MOL Series - Oldham Clamp Style Coupling Hubs w/o Keyway - Metric
  • MOL Series - Oldham Clamp Style Coupling Hubs w/o Keyway
    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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Bore Size  (in)

Coupling Size

Keyway Size

Part Number

Description 

Bore Size 

Coupling Size

Keyway Size

Length thru Bore

Overall Coupling Length

Nominal Torque

Max Speed

N/A MOL16C-HUB-1/8-NKW N/A 1/8 in N/A MOL16C N/A No Keyway N/A 0.492 in12.50 mm N/A 1.142 in29.00 mm N/A 6.20 in·lb N/A 9500.00 rpm
N/A MOL16C-HUB-3/16-NKW N/A 3/16 in N/A MOL16C N/A No Keyway N/A 0.492 in12.50 mm N/A 1.142 in29.00 mm N/A 6.20 in·lb N/A 9500.00 rpm
N/A MOL20C-HUB-1/4-NKW N/A 1/4 in N/A MOL20C N/A No Keyway N/A 0.551 in14.00 mm N/A 1.299 in33.00 mm N/A 10.60 in·lb N/A 7600.00 rpm
N/A MOL20C-HUB-1/8-NKW N/A 1/8 in N/A MOL20C N/A No Keyway N/A 0.551 in14.00 mm N/A 1.299 in33.00 mm N/A 10.60 in·lb N/A 7600.00 rpm
N/A MOL20C-HUB-3/16-NKW N/A 3/16 in N/A MOL20C N/A No Keyway N/A 0.551 in14.00 mm N/A 1.299 in33.00 mm N/A 10.60 in·lb N/A 7600.00 rpm
N/A MOL20C-HUB-5/16-NKW N/A 5/16 in N/A MOL20C N/A No Keyway N/A 0.551 in14.00 mm N/A 1.299 in33.00 mm N/A 10.60 in·lb N/A 7600.00 rpm
N/A MOL25C-HUB-1/4-NKW N/A 1/4 in N/A MOL25C N/A No Keyway N/A 0.650 in16.50 mm N/A 1.535 in39.00 mm N/A 17.70 in·lb N/A 6100.00 rpm
N/A MOL25C-HUB-1/8-NKW N/A 1/8 in N/A MOL25C N/A No Keyway N/A 0.650 in16.50 mm N/A 1.535 in39.00 mm N/A 17.70 in·lb N/A 6100.00 rpm
N/A MOL25C-HUB-3/8-NKW N/A 3/8 in N/A MOL25C N/A No Keyway N/A 0.650 in16.50 mm N/A 1.535 in39.00 mm N/A 17.70 in·lb N/A 6100.00 rpm
N/A MOL25C-HUB-5/16-NKW N/A 5/16 in N/A MOL25C N/A No Keyway N/A 0.650 in16.50 mm N/A 1.535 in39.00 mm N/A 17.70 in·lb N/A 6100.00 rpm
N/A MOL32C-HUB-1/2-NKW N/A 1/2 in N/A MOL32C N/A No Keyway N/A 0.748 in19.00 mm N/A 1.772 in45 mm N/A 39.80 in·lb N/A 4800.00 rpm
N/A MOL32C-HUB-3/8-NKW N/A 3/8 in N/A MOL32C N/A No Keyway N/A 0.748 in19.00 mm N/A 1.772 in45 mm N/A 39.80 in·lb N/A 4800.00 rpm
N/A MOL32C-HUB-7/16-NKW N/A 7/16 in N/A MOL32C N/A No Keyway N/A 0.748 in19.00 mm N/A 1.772 in45 mm N/A 39.80 in·lb N/A 4800.00 rpm
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