Plain Linear Bearing - Square Flanged SFP20 1.25" ID

Plain Linear Bearing with a Square Flange and a 1.25" precision ID, designed to slide smoothly on both steel and ceramic-coated aluminum shafts. It features a self-lubricating FrelonGOLD® bearing liner that performs reliably with vibration damping in harsh conditions, enabling long-term, maintenance-free operation.

  • Precision running clearance on the inner diameter 0.0005” per side
  • Spherical 'Self-aligning' I.D. in the housing. Self-aligning housing
  • Standard Size
  • Square Flanged End Mount 
  • Closed aluminum housing with bearing Included
  • Self-Lubricating Bearing Liner: FrelonGOLD® is standard
  • Optional liners include Frelon® J & Frelon® W 
  • Temperature Rating: -400°F/+400°F or -240°C/204°C
  • Inch, metric and JIS sizing options   
  • Optional ID sizes are 3/16” to 4” Inch Series, 5mm to 80mm Metric
  • Choose between standard ID running clearance (0.0005" per side) and compensated ID running clearance (0.0015" per side) 
  • Maximum Speed: Up to 8 m/s (315 in/s) 
  • Shaft Lengths: Up to 12 feet 
  • Bearing Shell Material: Anodized aluminum; stainless steel shells are available
  • Shaft Lengths: Up to 12 feet 
  • Shell Material: Standard is aluminum; stainless steel shells are available
  • Self-Lubricating: Provides oil-free operation
  • Seal Options: Nitrile rubber, urethane, and viton seals available from ½” ID and up or 20mm and up
  • Mounting Options: O-ring and retaining ring grooves for multiple mounting options
  • External Lubrication: Optional feature for added lubrication
  • Vibration Damping: Ensures smooth and quiet operation
  • Designed for use with end-supported shafting 
  • Interchangeable with linear ball bearings and some bronze bushings  

3D Models

TypeFileFormatLink
3dSFP20.htmlhtmlView
cadSFP20.dxfDXFDownload
cadSFP20.x_tSolidWorks >=2006Download
$177.30
Details
Dimensions
Videos
Resources

Additional Details

Category Details

Product Dimensions

weightwidthlengthheight
1.83 lbs2 in2.62 in2 in
Simplicity Plain Bearing Overview
Simplicity Plain Bearing Overview
Simplicity 60 Plus Shafting and Bearing Matched for Performance
Simplicity 60 Plus Shafting and Bearing Matched for Performance
How to Install the Right Simplicity Linear Bearing
How to Install the Right Simplicity Linear Bearing
How to Properly Lubricate a Plain Linear Bearing
How to Properly Lubricate a Plain Linear Bearing
Custom Bearings Project
Custom Bearings Project
Custom Hillman Case Study DOD
Custom Hillman Case Study DOD
Parallel Rail Alignment Video
Parallel Rail Alignment Video

3D Models

DXF
cadDownload
html
3dView
SolidWorks >=2006
cadDownload

Catalogs & Datasheets

SIMPLICITY Self-Lubricated Linear Bearings Datasheet
datasheetOpen Link
SIMPLICITY Self-Lubricated Linear Bearings Chemical Reaction Chart
datasheetOpen Link
Simplicity Linear Bearings Chemical Chart
datasheetOpen Link
Simplicity Linear Plain Bearings
datasheetOpen Link

News & Blogs

The Science of Simplicity Self-Lubricating Linear Plain Bearings
blogOpen Link
Simplicity Bearings - Designed to Last
blogOpen Link
Withstand the test of time with Simplicity® Bearings
newsOpen Link
The Simplicity® Bearing: Meeting All Packaging Needs without Fail
newsOpen Link
Combating Environmental Issues With PBC Linear Guidance Solutions
blogOpen Link
Ball-bearing vs. Plane Bearing Technology in Heavy Wash-down
newsOpen Link
White Paper: Demystifying the 2:1 Ratio and the Stick-Slip Phenomenon
blogOpen Link
Calculating a Plain Bearings Pressure Velocity
blogOpen Link
Plain vs Ball Bushings in Washdown Environments
blogOpen Link
PBC Linear’s Guide for Approved Bearing Inspection Methods
blogOpen Link
The Science Behind Self-Lubricating Plain Bearings
blogOpen Link
Overview of Linear Guides in Motion Design
blogOpen Link