Linear Bearing - Closed - Inch Series FL

Plain Linear Bearings - Closed

Closed shell plain linear bearings from the Simplicity® line are equipped with a self-lubricating FrelonGOLD® liner, delivering maintenance-free performance in harsh environments with extreme temperatures ranging from -400°F to +400°F (-240°C to 204°C), as well as resistance to dirt and vibration. These bearings are available in inch (3/16” to 4”), ISO metric (5mm to 80mm), and JIS sizes. Designed for end-supported shafting, they have static load capacities of up to 166,000 lb (740 kN) and can achieve maximum speeds of 8 m/s (315 in/s). Features include aluminum or stainless steel shells, standard or compensated ID clearances (0.0005" or 0.0015" per side), and either a standard or self-aligning outer diameter (OD).

More About Plain Linear Bearings - Closed

Plain Linear Bearings - Closed

238 products
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238 products
Crowned, closed, self-aligning plain linear bearing with a 20mm 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. The anodized aluminum shell is both lightweight and..
$27.53
Crowned, closed, self-aligning plain linear bearing with a 16mm 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..
$26.97
Closed self-lubricating plain linear bearing with a 25mm 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. The anodized aluminum shell is both lightweight and sturdy,..
$38.84
Closed self-lubricating plain linear bearing with a 100mm 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. The anodized aluminum shell is lightweight yet durable. Self-lubricating..
$566.07
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 compensated 50mm ID (inner diameter), featuring a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. The compensated running clearance provides more clearance between the bearing interior and shaft allowing the bearing to perform like a linear..
$117.77
Thin Wall Plain Linear Bearing with a compensated 40mm ID (inner diameter), featuring a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. The compensated running clearance provides more clearance between the lined interior and shaft allowing the plain bearing to perform like a..
$67.37
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
Thin Wall Plain Linear Bearing with a compensated 25mm ID (inner diameter), featuring a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. The compensated running clearance provides more clearance between the lined interior and shaft allowing the plain bearing to perform like a..
$34.96
Thin Wall Plain Linear Bearing with a compensated 20mm ID (inner diameter), featuring a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. The compensated running clearance provides more clearance between the lined interior and shaft allowing the plain bearing to perform like a..
$18.91
Thin Wall Plain Linear Bearing with a compensated 14mm ID (inner diameter), featuring a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. The compensated running clearance provides more clearance between the lined interior and shaft allowing the plain bearing to perform like a..
$18.55
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 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 5/8" inner diameter and 3/4" 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..
$20.96
Sleeve Bearing, round flanged with a 1/4" inner diameter, 1/4" 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 (such as hot or dirty) environments without catastrophic failure. Temperature..
$13.88
Closed plain linear bearing with a compensated 80mm ISO Metric ID (inner diameter) with a running clearance of 0.0015" per side. Self-Lubricating Bearing Liner is FrelonGOLD®. ISO Metric - Closed Anodized aluminum shell (optional stainless steel) Compensated running clearance of 0.0015" per side Self-Lubricating Bearing Liner: FrelonGOLD® is standard. Operates..
$353.77
Closed plain linear bearing with a compensated 60mm ISO Metric ID (inner diameter) with a running clearance of 0.0015" per side. Self-Lubricating Bearing Liner is FrelonGOLD®. ISO Metric - Closed Anodized aluminum shell (optional stainless steel) Compensated running clearance of 0.0015" per side Self-Lubricating Bearing Liner: FrelonGOLD® is standard. Operates..
$221.11
Closed plain linear bearing with a compensated 50mm ISO Metric ID (inner diameter) with a running clearance of 0.0015" per side. Self-Lubricating Bearing Liner is FrelonGOLD®. ISO Metric - Closed Anodized aluminum shell (optional stainless steel) Compensated running clearance of 0.0015" per side Self-Lubricating Bearing Liner: FrelonGOLD® is standard. Operates..
$130.84
Closed plain linear bearing with a compensated 30mm ISO Metric ID (inner diameter) with a running clearance of 0.0015" per side. Self-Lubricating Bearing Liner is FrelonGOLD®. ISO Metric - Closed Anodized aluminum shell (optional stainless steel) Compensated running clearance of 0.0015" per side Self-Lubricating Bearing Liner: FrelonGOLD® is standard. Operates..
$65.27
Closed Compensated Plain Linear Bearing 25mm ID (inner diameter). The compensated running clearance of 0.0015" per side provides more clearance between the inner diameter and shaft allowing the bearing to perform like a linear ball bearing. Straight outer diameter. ISO Metric Closed Standard Width Self-Lubricating Bearing Liner: FrelonGOLD® is standard Optional..
$38.84

Plain Linear Bearings - Closed

238 products

Closed shell plain linear bearings from the Simplicity® line are equipped with a self-lubricating FrelonGOLD® liner, delivering maintenance-free performance in harsh environments with extreme temperatures ranging from -400°F to +400°F (-240°C to 204°C), as well as resistance to dirt and vibration. These bearings are available in inch (3/16” to 4”), ISO metric (5mm to 80mm), and JIS sizes. Designed for end-supported shafting, they have static load capacities of up to 166,000 lb (740 kN) and can achieve maximum speeds of 8 m/s (315 in/s). Features include aluminum or stainless steel shells, standard or compensated ID clearances (0.0005" or 0.0015" per side), and either a standard or self-aligning outer diameter (OD).

They offer oil-free operation, vibration damping for smooth and quiet motion, and seal options (nitrile, urethane, viton for ½” ID or 20mm and up). Optional external lubrication and various mounting options, such as O-ring and retaining ring grooves, enhance their versatility. These bearings are interchangeable with linear ball bearings and some bronze bushings, making them suitable for heavy-load applications with movement in all directions (linear, rotational, and oscillating).


  • 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);
  • Shell Material: Anodized aluminum; optional stainless steel shells
  • Self-Lubricating: Provides oil-free operation
  • FrelonGold® liner (optional corrosive chemical-resistant Frelon® J or FDA-compliant Frelon® W)
  • 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

View the full product features page for plain linear bearings