Linear Bearing - Closed - Inch Series FL

Plain Linear Bearings - Closed

Closed shell plain linear bearings of the Simplicity® line feature a self-lubricating FrelonGOLD® liner for maintenance-free performance in harsh conditions like extreme temperatures, dirt, and vibration, and are available in inch, ISO metric, and JIS sizes with optional corrosion-resistant Frelon® J or FDA-compliant Frelon® W liners for specialized applications. Unlike open bearings, which allow shaft attachment to a rail for enhanced rigidity, closed bearings handle heavy loads in all directions with versatile mounting options.

More About Plain Linear Bearings - Closed

Plain Linear Bearings - Closed

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238 products
Thin Wall Plain Linear Bearing with a precision 20mm ID (inner diameter), featuring a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration.  Closed - ISO Metric Only Precision running clearance 0.0005" per side Anodized aluminum outer shell - Straight outer diameter Designed for..
$18.91
Thin Wall Plain Linear Bearing with a precision 14mm ID (inner diameter), featuring a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration.  Closed - ISO Metric Only Precision running clearance 0.0005" per side Anodized aluminum outer shell - Straight outer diameter Designed for..
$18.55
Thin Wall Plain Linear Bearing with a precision 16mm ID (inner diameter), featuring a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration.  Closed - ISO Metric Only Precision running clearance 0.0005" per side Anodized aluminum outer shell - Straight outer diameter Designed for..
$18.55
Thin Wall Plain Linear Bearing with a precision 8mm ID (inner diameter), featuring a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration.  Closed - ISO Metric Only Precision running clearance 0.0005" per side Anodized aluminum outer shell - Straight outer diameter Designed for..
$14.38
Thin Wall Plain Linear Bearing with a precision 10mm ID (inner diameter), featuring a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration.  Closed - ISO Metric Only Precision running clearance 0.0005" per side Anodized aluminum outer shell - Straight outer diameter Designed for..
$15.95
Thin Wall Plain Linear Bearing with a precision 6mm ID (inner diameter), featuring a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration.  Closed - ISO Metric Only Precision running clearance 0.0005" per side Anodized aluminum outer shell - Straight outer diameter Designed for..
$14.38
Thin Wall Plain Linear Bearing with a precision 12mm ID (inner diameter), featuring a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration.  Closed - ISO Metric Only Precision running clearance 0.0005" per side Anodized aluminum outer shell - Straight outer diameter Designed for..
$16.62
Simplicity® Plain Linear Sleeve Bearing with a 3/4" inner diameter and 1" length, and a round flanged end mount. This closed plain bushing is designed for both linear and rotational movement. The self-lubricating, maintenance-free bearing liner is FrelonGold®, ensuring durable performance in hot or dirty environments without catastrophic failure. Temperature..
$24.43
Simplicity® Plain Linear Sleeve Bearing with a 1/2" inner diameter and a length of 1" with a round flanged end mount. This closed plain bushing is designed for both linear and rotational movement. The self-lubricating, maintenance-free bearing liner is FrelonGold®, ensuring durable performance in hot or dirty environments without catastrophic..
$21.68
Sleeve Bearing, round flanged with a 5/8" inner diameter, 1" length, round flange and closed aluminum alloy shell. This maintenance-free Simplicity® plain bushing is designed for both linear and rotational movement. The self-lubricating bearing liner is FrelonGold®, ensuring durable performance in extreme (such as hot or dirty) environments without catastrophic..
$23.20
Simplicity® Plain Linear Sleeve Bearing with a 3/8" inner diameter and 3/4" length, and a round flanged end mount. This closed plain bushing is designed for both linear and rotational movement. The self-lubricating, maintenance-free bearing liner is FrelonGold®, ensuring durable performance in hot or dirty environments without catastrophic failure. Temperature..
$19.36
Simplicity® Plain Linear Sleeve Bearing with a 1/2" inner diameter and 1/2" length, with a round flanged end mount. This closed plain bushing is designed for both linear and rotational movement. The self-lubricating, maintenance-free bearing liner is FrelonGold®, ensuring durable performance in hot or dirty environments without catastrophic failure. Temperature..
$20.54
Flanged Plain Linear Sleeve Bearing with a 3/16" inner diameter and a length of 1/2" with a round flange end mount. This closed plain bushing is designed for both linear and rotational movement. The self-lubricating, maintenance-free bearing liner is FrelonGold® by default, ensuring performance in hot and/or dirty environments without..
$13.92
Simplicity® Flanged Plain Linear Sleeve Bearing with a 3/16" inner diameter and a length of 1/4" with a round flange end mount. This closed plain bushing is designed for both linear and rotational movement. The self-lubricating, maintenance-free bearing liner is FrelonGold® by default, ensuring performance in hot and/or dirty environments..
$13.77
Round Flanged Sleeve Bearing with a 35mm inner diameter, 35mm length and closed aluminum alloy shell. This maintenance-free Simplicity® plain bushing is designed for both linear and rotational movement. The self-lubricating bearing liner is FrelonGold®, ensuring durable performance in extreme environments (such as heat or dirt) without catastrophic failure. Temperature..
$69.30
Round Flanged Sleeve Bearing with a 50mm inner diameter, 50mm length and closed aluminum alloy shell. This maintenance-free Simplicity® plain bushing is designed for both linear and rotational movement. The self-lubricating bearing liner is FrelonGold®, ensuring durable performance in extreme environments (such as heat or dirt) without catastrophic failure. Temperature..
$89.27
Round Flanged Sleeve Bearing with a 40mm inner diameter, 40mm length and closed aluminum alloy shell. This maintenance-free Simplicity® plain bushing is designed for both linear and rotational movement. The self-lubricating bearing liner is FrelonGold®, ensuring durable performance in extreme environments (such as heat or dirt) without catastrophic failure. Temperature..
$75.46
Round Flanged Sleeve Bearing with a 30mm inner diameter, 30mm length and closed aluminum alloy shell. This maintenance-free Simplicity® plain bushing is designed for both linear and rotational movement. The self-lubricating bearing liner is FrelonGold®, ensuring durable performance in extreme environments (such as heat or dirt) without catastrophic failure. Temperature..
$60.05
238 products

Plain Linear Bearings - Closed

238 products

Closed shell plain linear bearings of the Simplicity® line feature a self-lubricating FrelonGOLD® liner for maintenance-free performance in harsh conditions like extreme temperatures, dirt, and vibration, and are available in inch, ISO metric, and JIS sizes with optional corrosion-resistant Frelon® J or FDA-compliant Frelon® W liners for specialized applications. Unlike open bearings, which allow shaft attachment to a rail for enhanced rigidity, closed bearings handle heavy loads in all directions with versatile mounting options.


  • Temperature Rating: -400°F/+400°F or -240°C/204°C
  • ID Sizes: Available from 3/16” to 4” Inch Series, 5mm to 80mm Metric Series
  • This translates to ID sizes: 4.76 mm (0.19 in) to 101.6 mm (4 in)
  • Maximum Horizontal Static Load: 2,165-100,500 lb (982- 45,586 kg)
  • Static Load Capacities up to 166,000 lb (740 kN)
  • Maximum Speed: Up to 8 m/s (315 in/s);
  • 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 or linear rail supported shafts
  • Interchangeable with linear ball bearings and some bronze bushings
  • 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