Spicer 2011 Spicer Bulletin 3; SERVICE_TECHNICAL INFORMATION - Manual

JOI-TEC-057
IMPROVEMENTS TO SELECT GENUINE
SPICER LIGHT DUTY U-JOINTS
SERVICE/TECHNICAL
DATE: June 22, 2011
TO: All Spicer ® Service Parts Universal Joint Customers
We are pleased to announce the following improvements recently implemented on several of our most
popular light duty u-joint kits: part numbers 5-1310-1x, 5-1310x, 5-1330-1x, 5-1330x, 5-1350x, 5-1410x,
5-7437x, 5-7438x, 5-7439x

Seal Guard
o
Redesigned and material upgraded to greatly improve the installation and long term fit on
the bearing cap assembly.
o
Performance results:

Virtually eliminates the potential for cracking during installation or operation.

Improved performance in extreme temperatures.

Eliminates the potential for outside contaminants from reaching the bearings.

Trunion Seal on pre lube U-Joints
o
The design of triple lip seal has been changed.
o
Performance results:

Instances of loss of small amounts of
grease has been reduced by >50%.

Thrust Washer design changes
o
The thrust washer is now a 2-piece assembly (a
thrust washer and a spacer). The spacer is
machined with 3 grooves per side.
o
Performance results:

The addition of a spacer allows for improved rotation of the journal cross and the
needle bearings.

Improved distribution of grease.

Reduced potential for misaligned needle bearings.

Journal Cross Design changes
o
The chamfer at the end of the trunion has been increased and seal guard retention ridge
has been redesigned.
o
Performance results:

Reduced stresses on the seal guard.

Reduced journal cross stress levels.

Improved needle bearing retention.
Thank you for your continued support of Spicer U-joints.
Chris Boesel
Product Manager
Spicer
® Driveline Products
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