Lovejoy
Lovejoy L150U Urethane Spider Insert v-belt
Urethane spider insert for L150 jaw couplings rated to 5,000 RPM and 1,860 in-lb torque with 90A durometer hardness
- Urethane spider dampens vibration for smooth power transfer
- Rated 3.0 hp at 100 RPM for reliable torque handling
- Withstands 1,860 in-lb maximum torque under load
- Allows 0.015 in parallel and 1° angular misalignment
- 90A durometer polyurethane resists wear in blower and pump drives
Coupling Insert for L150 Hubs
This urethane spider insert fits Lovejoy L150 jaw couplings and transmits torque between connected shafts. It is intended for maintenance teams and original-equipment builders who need a replacement or spare element for existing L150 assemblies. The blue polyurethane body provides a fail-safe design that continues to drive even if the spider fractures.
Verify Shaft Speed and Misalignment Limits
Confirm that the operating speed does not exceed 5,000 RPM and that the application torque stays within 1,860 in-lb. The insert tolerates 0.015 in of parallel offset and 1 degree of angular misalignment, so measure actual shaft alignment before ordering. Ensure the hub bore does not surpass 1 7/8 in and that the 3 47/64 in outside diameter clears surrounding guards.
Steady-State Torque and Heat Behaviour
At a continuous 100 RPM the insert is rated for 3.0 hp, reflecting its sustained-load capacity rather than a momentary peak. The 90A durometer urethane resists permanent deformation under constant cyclic loading, while the fail-safe construction maintains drive engagement during extended duty on blowers, compressors, generators and pumps.
Highlights
- Urethane spider dampens vibration for smooth power transfer
- Rated 3.0 hp at 100 RPM for reliable torque handling
- Withstands 1,860 in-lb maximum torque under load
- Allows 0.015 in parallel and 1° angular misalignment
- 90A durometer polyurethane resists wear in blower and pump drives
Specifications
No published specifications for this item yet.
Questions about this item
What comes in the box and is any additional hardware required?
The package contains a single urethane spider insert sized for L150 couplings; matching hubs must be purchased separately.
How do I know this L150U insert is the correct version for my coupling?
It is designed for coupling size L150 with a maximum hub bore of 1 7/8 in and a 90A durometer hardness.
What does the 3.0 hp at 100 RPM rating mean for actual equipment use?
It indicates the insert can transmit 3.0 horsepower at 100 RPM, with a torque capacity of 1,860 in-lb and a speed limit of 5,000 RPM.
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