Lovejoy Spider, 110

Lovejoy Spider, 110

The Lovejoy L110 Spider (Size 110) is the flexible jaw-coupling insert that cushions shock, reduces vibration, and helps handle minor misalignment between shafts—keeping power transmission smoother and components happier. The standard option is SOX (NBR/Buna-N) rubber, offering strong dampening and good oil resistance, with other material choices available for higher torque or temperature needs.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: L110
• Spider Size: 110
• Product Type: Jaw coupling spider / elastomer insert
• Standard Insert Material: SOX (NBR/Buna-N) rubber
  • Temp Range: -40°F to 212°F (-40°C to 100°C)
  • Misalignment: 1° angular, 0.015 in parallel
  • Shore Hardness: 80A (standard for most sizes)
  • Dampening Capacity: High
  • Chemical Resistance: Good
  • Color: Black
• Alternate Materials (by application needs):
  • Urethane: ~1.5× torque vs NBR, lower dampening, -30°F to 160°F, very good oil/chemical resistance, blue (not recommended for cyclic/start-stop)
  • Hytrel®: High torque/high temp, -60°F to 250°F, excellent oil/chemical resistance, tan (not recommended for cyclic/start-stop)
  • Bronze: Rigid, oil-impregnated, max 250 RPM, high torque, -40°F to 450°F, excellent resistance, bronze
• Spider Style Options: Solid center (most common) or open center (allows closer shaft positioning)
  • Open center RPM limits: 1,750 RPM max (NBR); 3,600 RPM max (Urethane/Hytrel®)

Ideal For

• Replacing a worn spider in an L110 jaw coupling
• Reducing shock and vibration in motors, pumps, fans, conveyors, and general drivetrains
• Oil-exposed environments where NBR (SOX) rubber is a strong all-around choice
• Users who want a smoother drive (and fewer “why is it rattling?” investigations)