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

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238 products
Plain linear bearing with a 38mm JIS precision ID that has a 0.0005" running clearance per side. The green anodized aluminum closed shell ensures robust durability, while the FrelonGOLD® liner delivers self-lubricating, maintenance-free performance in harsh conditions including extreme temperatures, dirt and vibration.  Meets JIS metric tolerance standards for precision..
$74.87
Closed self-lubricating plain linear bearing with a 40mm 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,..
$75.96
Closed self-lubricating 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 sturdy,..
$21.00
Closed self-lubricating plain linear bearing with a 150mm 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, designed..
$1,122.10
Closed self-lubricating 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. The anodized aluminum shell is lightweight yet durable, designed..
$20.59
Closed self-lubricating plain linear bearing with a 120mm JIS Metric inner diameter, featuring a precision running clearance of 0.0005" per side. This bearing incorporates a self-lubricating liner made from FrelonGOLD®, which provides excellent wear resistance, vibration dampening and reduced friction, ensuring smooth operation without the need for additional lubrication.  The..
$725.29
Closed self-lubricating plain linear bearing with a 12mm 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..
$18.46
Closed self-lubricating plain linear bearing with a 13mm 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,..
$20.59
Closed self-lubricating plain linear bearing with a 8mm 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,..
$15.98
Closed self-lubricating plain linear bearing with a 10mm 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..
$17.71
Thin Wall Plain Linear Bearing with a compensated 40mm 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 Straight outer diameter Self Lubricating Simplicity Frelon..
$67.37
Thin Wall Plain Linear Bearing with a compensated 50mm 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 Compensated running clearance, 0.0015" per side Straight outer diameter Self Lubricating Simplicity Frelon Gold® liner..
$117.77
Thin Wall Plain Linear Bearing FGC35 35mm 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..
$67.37
Thin Wall Plain Linear Bearing - Compensated 30mm 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..
$58.72
Thin Wall Plain Linear Bearing. Compensated 25mm 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..
$34.96
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 16mm 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..
$18.55
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. Compensated 15mm 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..
$18.55

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