Lovejoy L/AL090/095 SPIDER SOX

Description

Lovejoy jaw type couplings generally consist of two hubs (available in sintered metal, aluminum, bronze, steel, stainless steel, and ductile iron), and an element, known as a spider or cushion (materials include NBR SOX rubber, Urethane, Hytrel, and Bronze).

Solid Center Spider

• The solid center design is commonly used design when shafts of the driver and driven equipment can be kept separate by a standard gap

Open Center Spider

• The open center design allows for the shafts of the driver and driven to be positioned within a short distance
• Open center spiders offer shaft positioning flexibility but have a lower RPM capacity (1,750 RPM maximum for NBR and 3,600 maximum for Urethane/Hytrel)

Spider Materials

• SOX (NBR) Rubber (Standard Insert) – Nitrile Butadiene (Buna N) Rubber is a flexible elastomer material that is oil resistant, resembles natural rubber in resilience and elasticity.
• Urethane – Greater torque capability than NBR (1.5 times), provides less dampening effect, and operates in a smaller temperature range. Good resistance to oil and chemicals. Not recommended for cyclic or start/stop applications.
• Hytrel – Flexible elastomer designed for high torque and high temperature operations. Excellent resistance to oil and chemicals. Not recommended for cyclic or start/stop applications.
• Bronze – Rigid, porous oil-impregnated metal insert exclusively for low speed (max 250 RPM) applications requiring high torque capabilities. Not affected by extreme temperatures, water, oil, or dirt.