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Item # 68514412001, L Type Spiders - Solid Centers

  • The L Type coupling consists of two standard L Type hubs and one spider.

Solid Center Spiders - Metric

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Solid Center Spiders - Metric-2

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Specifications · Dimensional Data · Performance Data · Spider Performance · Elastomers in Compression · Notes




Coupling Type



SOX (NBR) Rubber

Insert Style





Elastomeric Insert


0.25 lb

Dimensional Data

Coupling Size


Dimension A

3.750 in
95.25 mm

Dimension B

0.590 in
14.99 mm

Dimension DC

0.310 in
7.87 mm

Dimension H

1.250 in
31.75 mm

Dimension W

0.88 in
22.35 mm

Cubic inches

12.37500 in³

Performance Data

Normal Temperature Range

-40 to 212 ºF
-40 to 100 ºC

Nominal Torque

1240.00 in·lb
140.00 N·m

Angular Misalignment

1.00 º

Parallel Misalignment

0.150 in

Shore Hardness


Damping Capacity


Chemical Resistance


Spider Performance
  • Nitrile Butadiene (Buna N) Rubber is a flexible elastomer material that is oil resistant, resembles natural rubber in resilience and elasticity and operates effectively in temperature range of -40° to 212° F (-40° to 100° C). Good resistance to oil. Standard elastomer. (Also applies to SXB Cushions.)

Elastomers in Compression
    Lovejoy offers four types of elastomer designs to allow for additional flexibility in addressing specific application requirements. One piece designs are used in the “L” and “AL” models (referred to as spiders) and multiple part “load cushions” are used in the “C” and “H” model couplings. The load cushions are in sets of 6 to 14 pieces depending on coupling size.
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, 3,600 maximum for Urethane/Hytrel®)
  • Used exclusively for the C and H Type couplings
  • Load cushions are held in place radially by a steel collar which is attached to one of the hubs
Snap Wrap Flexible Spider
  • Design allows for easy removal of the spider without moving the hubs
  • Allows for close shaft separation all the way up to the hubs maximum bore
  • Maximum RPM is 1,750 RPM with the retaining ring, but if used with the LC Type (with collar) the normal RPM rating of the coupling applies
  • Style is available in NBR and Urethane only, and in limited sizes



  • NBR standard shore hardness is 80A ±5A – Except L035=60A. Other softer or harder designs are available in NBR material; consult Lovejoy.


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