PART NUMBER STRUCTURE:

• UCP-212-39 = UC P 212 39

Bearing Type
UC - Normal Duty Set Screw Insert
UCS - Stainless Steel Normal Duty Set Screw Insert
HC - Normal Duty Eccentric Lock Insert

SB - Light Duty Set Screw Insert
SA - Light Duty Eccentric Lock Insert

UCX - Medium Duty Set Screw Insert

CSB - Light Duty Set Screw Insert, Cylindrical Outside Diameter
CSA - Light Duty Eccentric Lock Insert, Cylindrical Outside Diameter

SER - Normal Duty Set Screw Insert, Cylindrical Outside Diameter w/ Snap Ring

Housing Types

Pillow Block
P - Standard Height Pillow Block Housing, Solid Base
PK - Low Center Height Pillow Block Housing, Solid Base
PS - Stainless Steel Standard Height Pillow Block Housing, Solid Base
PT - Thermoplastic Standard Height Pillow Block Housing, Solid Base

PX - Medium Duty Pillow Block Housing

PA - Tapped Base Pillow Block Housing
PAS - Stainless Steel Tapped Base Pillow Block Housing
PAT - Thermoplastic Tapped Base Pillow Block Housing

SP - Pressed Steel Pillow Block Housing

Flange
FL - 2-Bolt Flange Housing for Set Screw Insert
FLS - Stainless Steel 2-Bolt Flange Housing for Set Screw Insert
FLT - Thermoplastic 2-Bolt Flange Housing for Set Screw Insert
FLU - 2-Bolt Flange Housing for Eccentric Lock Insert

F - 4-Bolt Flange Housing for Set Screw Insert
FS - Stainless Steel 4-Bolt Flange Housing for Set Screw Insert
FT - Thermoplastic 4-Bolt Flange Housing for Set Screw Insert
FU - 4-Bolt Flange Housing for Eccentric Lock Insert

FX - Medium Duty 4-Bolt Flange Housing

FB - 3-Bolt Bracket Flange Housing
FBS - Stainless Steel 3-Bolt Bracket Flange Housing
FBT - Thermoplastic 3-Bolt Bracket Flange Housing

FC - Cartridge Flange / Piloted Flange Housing

LF - Light Duty 2-Bolt Flange

SFL - Pressed Steel 2-Bolt Flange
STF - Pressed Steel Triangle Flange
SRF - Pressed Steel Round Flange

Take Up
ST - Take Up Housing, Wide Slot
STS - Stainless Steel Take Up Housing, Wide Slot
STT - Thermoplastic Take Up Housing, Wide Slot

NST - Take Up Housing, Narrow Slot
NSTS - Stainless Steel Take Up Housing, Narrow Slot
NSTT - Thermoplastic Take Up Housing, Narrow Slot

Hanger
HA - Hanger Housing
HAS - Stainless Steel Hanger Housing
HAT - Thermoplastic Hanger Housing

Series Number
The series number represents a group of bearings that share the same dimensions (excluding the bore size). Therefore a UCP-207, UCP-207-21, and UCP-207-23 will all have identical dimensions. Part numbers ending with the series number are metric bore bearings.

Bore Size Number
This number is a representative number for the bore size in inches. To find the actual inch bore size, divide this number by 16. Therefore, on the UCP-212-39, 39/16 = 2.4375 or a 2 7/16" bore. Part numbers without the bore size number are metric bore bearings.

SEAL TYPES

Single Seal: Our single seal consists of a thick pressed steel outer piece with a vulcanized synthetic sealing rubber lip baked to the inside. The steel acts a shield protecting the rubber seal from contaminants and damage while the rubber sealing lip keeps contaminants from entering the bearing.
Double Seal: Our double seal consists of two seals working simultaneously to exclude contaminants while retaining grease. The outer seal is a thick steel slinger that is fixed to the inner ring while the inner seal is an oil seal consisting of synthetic rubber that has been baked to a supporting steel core. This inner seal is attached to the outer ring and gently contacts the outer ring. Furthermore, when in motion, the combination of these two seals create wind pressure between the seals helping to keep out contaminates.
Triple Lip Seal: Our triple lip seal is our best option for severe conditions and contaminate control. The triple lip consists of synthetic rubber that has been baked to a protective heavy duty steel cap. The three fingers of the seal contact the inner ring of the bearing successfully keeping out all contaminates.

SHAFT TOLERANCES

Prior to installing, be sure to clean both the shaft and the bore of the bearing. Lightly oil the shaft to ease installation. Verify shaft diameter is within the tolerance specified below as out-of-round shafts and/or shafts out of tolerance can damage the bearing causing premature failure.

SET SCREW TORQUE

Set screws should be tightened evenly on the shaft until both are snug. Once snug, each set screw should be further tightened to the recommended torque value in the following table. Be careful not to over torque the set screws as over tightening can cause bearing and/or shaft damage.

OPERATING TEMPRATURES

RAM bearings should be operated between the temperatures of -4°F and 248°F. Operating a RAM bearing at temperatures over 150°F reduces the life of grease and requires more frequent greasing intervals. Please refer to the following chart for proper greasing intervals.

LUBRICATION

RAM Bearings (non-stainless) are properly prelubricated with high quality lithium based, water resistant grease. It is not necessary to grease the bearing upon initial installation. While in use, consistent greasing intervals of the bearing will be needed. Factors such as speed, operating temperature, surrounding conditions and grease quality will determine the appropriate greasing intervals. Be sure not to over grease the bearing as over greasing can cause seal damage and over heating leading to premature bearing failure. Please refer to the following tables for greasing guidelines.

For additional technical information, please contact a Pacific Industries, Inc. sales representative.

DISCLAIMER

All technical data is meant for guide purposes only and the information herein is subject to change without notice. Pacific Industries, Inc. does not intend any technical data to serve as a warranty; express or implied.