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.
|Description||MSF20 HUB 5MM N/KW|
|Type||Mini Soft, Three Piece Design w/ Sleeve Insert|
|Weight (Complete Coupling w/ Min. Bores)||1.50 oz43.00 g|
|Bore Size||5.00 mm|
|Set Screw Size||M3|
|Keyway Size||No Keyway|
|Length thru Bore||0.394 in10.00 mm|
|Overall Coupling Length||1.339 in34.00 mm|
|Outside Diameter||0.787 in20.00 mm|
|Min. Bore (Dimensions ID1/ID2)||0.197 in5.00 mm|
|Max. Bore (Dimensions ID1/ID2)||0.394 in10.00 mm|
|Cubic inches||0.82934 in³|
|Normal Temperature Range||140.00 ºF|
|Nominal Torque||8.90 in·lb|
|Max Speed||1900.00 rpm|
|Angular Misalignment||2.00 º|
|Parallel Misalignment||0.010 in|
|Torsional Stiffness||80.00 in·lb/rad|
|Moment of Inertia||0.0100 lb·in²|
- Easy blind assembly
- Good shock load absorption
- Good abrasion resistance
- Zinc alloy hubs
- Polyurethane insert
- Nominal torque, torsional stiffness, weight and moment of inertia are based on minimum bore size.
Item must be unused.
Item must be in it's original package.
Restocking, shipping and handling fees may applied to any return with this manufacturer.
For more information please consult https://www.mrosupply.com/page/returnwarranty-policy/