Linear Bearing - Plain, Open

Plain Linear Bearings

Plain linear bearings of the Simplicity® line feature a self-lubricating FrelonGOLD® liner for maintenance-free operation and reliable performance in harsh conditions, including extreme temperatures (-400°F to +400°F), dirt, and vibration. The bearing shells are constructed from anodized aluminum and are available in both open and closed versions, with inner diameters (IDs) ranging from 3/16” to 4” in inches, 5mm to 80mm in metric, and JIS standards. Standard ID clearance is 0.0005" per side, while compensated clearance is 0.0015" per side, supporting static loads up to 166,000 lb (740 kN). Optional seals made of nitrile, urethane, or viton are available for IDs larger than ½” or 20mm. Designed for linear rail or end-supported shafting, these bearings achieve speeds up to 8 m/s while dampening vibration for smooth, quiet operation. Interchangeable with linear ball bearings and some bronze bushings, they ensure durability across various applications.

More About Plain Linear Bearings

Browse Categories

Plain Linear Bearings

314 products
Close filters
314 products
Closed self-lubricating plain linear bearing with a 6mm JIS Metric inner diameter and a precision running clearance of 0.0005" per side. Made with a self-lubricating FrelonGOLD® liner, it offers excellent wear resistance and vibration dampening, ensuring smooth operation without extra lubrication, in harsh and/or high temperature environments. The anodized aluminum..
$15.98
Thin Wall Plain Linear Bearing with a 50mm ID (inner diameter) ISO Metric Closed Precision running clearance, 0.0005" per side FAG Interchange Self Lubricating Simplicity Frelon Gold® liner material with anodized aluminum outer shell Designed for use with end-supported shafting  Interchangeable with compact linear ball bearings and some bronze bushings  Product Variant..
$117.77
Thin Wall Plain Linear Bearing with a 30mm ID (inner diameter) ISO Metric Closed Precision running clearance, 0.0005" per side FAG Interchange Self Lubricating Simplicity Frelon Gold® liner material with anodized aluminum outer shell Designed for use with end-supported shafting  Interchangeable with compact linear ball bearings and some bronze bushings  Product Variant..
$58.72
Thin Wall Plain Linear Bearing with a 20mm ID (inner diameter) ISO Metric Closed Precision running clearance, 0.0005" per side FAG Interchange Self Lubricating Simplicity Frelon Gold® liner material with anodized aluminum outer shell Designed for use with end-supported shafting  Interchangeable with compact linear ball bearings and some bronze bushings  Product Variant..
$18.91
Thin Wall Plain Linear Bearing. Compensated 10mm ID (inner diameter). The compensated running clearance provides more clearance between the inner diameter and shaft allowing the bearing to perform like a linear ball bearing. ISO Metric Closed Compensated running clearance, 0.0015" per side FAG Interchange Self Lubricating Simplicity Frelon Gold® liner material with anodized..
$15.95
Thin Wall Plain Linear Bearing with a 40mm ID (inner diameter) ISO Metric Closed Precision running clearance, 0.0005" per side FAG Interchange Self Lubricating Simplicity Frelon Gold® liner material with anodized aluminum outer shell Designed for use with end-supported shafting  Interchangeable with compact linear ball bearings and some bronze bushings  Product Variant..
$67.37
Thin Wall Plain Linear Bearing with a 15mm ID (inner diameter) ISO Metric Closed Precision running clearance, 0.0005" per side FAG Interchange Self Lubricating Simplicity Frelon Gold® liner material with an anodized aluminum outer shell Designed for use with end-supported shafting  Interchangeable with compact linear ball bearings and some bronze bushings  Product..
$18.55
Thin Wall Plain Linear Bearing. Compensated 20mm ID (inner diameter). The compensated running clearance provides more clearance between the inner diameter and shaft allowing the bearing to perform like a linear ball bearing. ISO Metric Closed Compensated running clearance, 0.0015" per side FAG Interchange Self Lubricating Simplicity Frelon Gold® liner material with anodized..
$18.91
Thin Wall Plain Linear Bearing. Compensated 8mm ID (inner diameter). The compensated running clearance provides more clearance between the inner diameter and shaft allowing the bearing to perform like a linear ball bearing. ISO Metric Closed Compensated running clearance, 0.0015" per side FAG Interchange Self Lubricating Simplicity Frelon Gold® liner material with anodized..
$14.38
Thin Wall Plain Linear Bearing with a 35mm ID (inner diameter) ISO Metric Closed Precision running clearance, 0.0005" per side FAG Interchange Self Lubricating Simplicity Frelon Gold® liner material with an anodized aluminum outer shell Designed for use with end-supported shafting  Interchangeable with compact linear ball bearings and some bronze bushings  Product..
$67.37
Thin Wall Plain Linear Bearing with a 16mm ID (inner diameter) ISO Metric Closed Precision running clearance, 0.0005" per side FAG Interchange Self Lubricating Simplicity Frelon Gold® liner material with an anodized aluminum outer shell Designed for use with end-supported shafting  Interchangeable with compact linear ball bearings and some bronze bushings  Product..
$18.55
Thin Wall Plain Linear Bearing with a 6mm ID (inner diameter) ISO Metric Closed Precision running clearance, 0.0005" per side FAG Interchange Self Lubricating Simplicity Frelon Gold® liner material with an anodized aluminum outer shell Designed for use with end-supported shafting  Interchangeable with compact linear ball bearings and some bronze bushings  Product..
$14.38
Thin Wall Plain Linear Bearing with a 12mm ID (inner diameter) ISO Metric Closed Precision running clearance, 0.0005" per side FAG Interchange Self Lubricating Simplicity Frelon Gold® liner material with an anodized aluminum outer shell Designed for use with end-supported shafting  Interchangeable with compact linear ball bearings and some bronze bushings  Product..
$16.62
Thin Wall Plain Linear Bearing with an 8mm ID (inner diameter) ISO Metric Closed Precision running clearance, 0.0005" per side FAG Interchange Self Lubricating Simplicity Frelon Gold® liner material with an anodized aluminum outer shell Designed for use with end-supported shafting  Interchangeable with compact linear ball bearings and some bronze bushings  Product..
$14.38
314 products

Plain Linear Bearings

314 products

Plain linear bearings of the Simplicity® line feature a self-lubricating FrelonGOLD® liner for maintenance-free operation and reliable performance in harsh conditions, including extreme temperatures (-400°F to +400°F), dirt, and vibration. The bearing shells are constructed from anodized aluminum and are available in both open and closed versions, with inner diameters (IDs) ranging from 3/16” to 4” in inches, 5mm to 80mm in metric, and JIS standards. Standard ID clearance is 0.0005" per side, while compensated clearance is 0.0015" per side, supporting static loads up to 166,000 lb (740 kN). Optional seals made of nitrile, urethane, or viton are available for IDs larger than ½” or 20mm. Designed for linear rail or end-supported shafting, these bearings achieve speeds up to 8 m/s while dampening vibration for smooth, quiet operation. Interchangeable with linear ball bearings and some bronze bushings, they ensure durability across various applications.


  • Linear, rotational and oscillating motions possible
  • Static Load Capacities up to 166,000 lb (740 kN)
  • ID sizes: 4.76 mm (0.19 in) to 101.6 mm (4 in)
  • Specific sizes are 3/16” to 4” Inch Series, 5mm to 80mm Metric Series
  • Choose between standard ID running clearance (0.0005" per side) and compensated ID running clearance (0.0015" per side)
  • Options for standard/straight OD or self-aligning/spherical OD to prevent binding
  • Optional liners include corrosive chemical resistant Frelon® J or FDA compliant Frelon® W
  • Temperature Rating: -400°F/+400°F or -240°C/204°C
  • Maximum Speed: Up to 8 m/s (315 in/s);
  • Shaft Lengths: Up to 12 feet
  • Shell Material: Standard is anodized aluminum; stainless steel shells optional
  • 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