The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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    The Lovejoy Mini Soft coupling provides protection from misalignment, vibration and shock loads. The simple design of the coupling ensures ease of assembly, installation and reliable performance. No special tools are needed for installation or removal. No lubrication is needed, and once installed and aligned correctly, no maintenance is required.

    The Mini Soft coupling design is comprised of three parts. Two hubs with internal teeth engage an elastomeric flexible center, or sleeve, with external teeth. Misalignment and torsional shock loads are absorbed by shear deflection in the center sleeve element.

    The shear characteristic of the coupling is very well suited to absorb impact. The Lovejoy Mini Soft coupling is designed with tooth contact which provides more surfaces carrying the load resulting in less wear at any one point, and torque that flows more smoothly. Additionally, the coupling allows for axial freedom which results in easier assembly and spacing of shafts. This feature is particularly useful in reducing thrust loads on bearings.

    When operating within its rating, the coupling is torsionally stiff and will not react with twist during operation. The Polyurethane center member sleeve is known for its toughness and resistance to abrasion, and also provides for good damping and shock load capabilities. The MSF coupling consists of two hubs and one center member.
MSF Series - Mini Soft Set Screw Style Coupling Hubs w/o Keyway - Metric
MSF Series - Mini Soft Set Screw Style Coupling Hubs w/o Keyway - Metric-2
Unit of Measure
1 

Part Number

Description 

Bore Size 

Coupling Size

Keyway Size

Length thru Bore

Overall Coupling Length

Nominal Torque

68514458038 N/A MSF16-HUB-1/8-NKW N/A 1/8 in N/A MSF16 N/A No Keyway N/A 0.315 in8.00 mm N/A 1.063 in27.00 mm N/A 4.40 in·lb
68514458039 N/A MSF16-HUB-3/16-NKW N/A 3/16 in N/A MSF16 N/A No Keyway N/A 0.315 in8.00 mm N/A 1.063 in27.00 mm N/A 4.40 in·lb
68514458040 N/A MSF16-HUB-1/4-NKW N/A 1/4 in N/A MSF16 N/A No Keyway N/A 0.315 in8.00 mm N/A 1.063 in27.00 mm N/A 4.40 in·lb
68514458041 N/A MSF16-HUB-5/16-NKW N/A 5/16 in N/A MSF16 N/A No Keyway N/A 0.315 in8.00 mm N/A 1.063 in27.00 mm N/A 4.40 in·lb
68514458048 N/A MSF20-HUB-3/16-NKW N/A 3/16 in N/A MSF20 N/A No Keyway N/A 0.394 in10.00 mm N/A 1.339 in34.00 mm N/A 8.90 in·lb
68514458049 N/A MSF20-HUB-1/4-NKW N/A 1/4 in N/A MSF20 N/A No Keyway N/A 0.394 in10.00 mm N/A 1.339 in34.00 mm N/A 8.90 in·lb
68514458050 N/A MSF20-HUB-5/16-NKW N/A 5/16 in N/A MSF20 N/A No Keyway N/A 0.394 in10.00 mm N/A 1.339 in34.00 mm N/A 8.90 in·lb
68514458051 N/A MSF20-HUB-3/8-NKW N/A 3/8 in N/A MSF20 N/A No Keyway N/A 0.394 in10.00 mm N/A 1.339 in34.00 mm N/A 8.90 in·lb
68514458057 N/A MSF25-HUB-1/4-NKW N/A 1/4 in N/A MSF25 N/A No Keyway N/A 0.472 in12.00 mm N/A 1.614 in41.00 mm N/A 13.30 in·lb
68514458058 N/A MSF25-HUB-5/16-NKW N/A 5/16 in N/A MSF25 N/A No Keyway N/A 0.472 in12.00 mm N/A 1.614 in41.00 mm N/A 13.30 in·lb
68514458059 N/A MSF25-HUB-3/8-NKW N/A 3/8 in N/A MSF25 N/A No Keyway N/A 0.472 in12.00 mm N/A 1.614 in41.00 mm N/A 13.30 in·lb
68514458060 N/A MSF25-HUB-7/16-NKW N/A 7/16 in N/A MSF25 N/A No Keyway N/A 0.472 in12.00 mm N/A 1.614 in41.00 mm N/A 13.30 in·lb
68514458067 N/A MSF32-HUB-3/8-NKW N/A 3/8 in N/A MSF32 N/A No Keyway N/A 0.551 in14.00 mm N/A 1.890 in48.00 mm N/A 26.60 in·lb
68514458068 N/A MSF32-HUB-7/16-NKW N/A 7/16 in N/A MSF32 N/A No Keyway N/A 0.551 in14.00 mm N/A 1.890 in48.00 mm N/A 26.60 in·lb
68514458069 N/A MSF32-HUB-1/2-NKW N/A 1/2 in N/A MSF32 N/A No Keyway N/A 0.551 in14.00 mm N/A 1.890 in48.00 mm N/A 26.60 in·lb
68514459457 N/A MSF32-HUB-5/16-NKW N/A 5/16 in N/A MSF32 N/A No Keyway N/A 0.551 in14.00 mm N/A 1.890 in48.00 mm N/A 26.60 in·lb
Unit of Measure
1