Linear Bearing - Closed - Inch Series FL

Plain Linear Bearings - Closed

Closed-shell plain linear bearings from the Simplicity® line feature a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh environments, handling extreme temperatures from -400°F to +400°F (-240°C to 204°C) and resisting dirt, shock, and vibration. Available in inch (3/16" to 4"), ISO metric (5 mm to 80 mm), and JIS sizes, they are designed for end-supported shafting, with static load capacities up to 166,000 lb (740 kN) and speeds up to 8 m/s (315 in/s). Options include aluminum or stainless steel shells, precision or compensated running clearances (0.0005" or 0.0015" per side), and standard or self-aligning ODs to accommodate misalignment. Interchangeable with many linear ball bearings and some bronze bushings, they are well suited for heavy-load applications involving linear, rotational, or oscillating motion.

More About Plain Linear Bearings - Closed

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238 products
Closed shell plain linear bearing with a JIS 6mm ID, precision running clearance, durable green anodized aluminum shell, and a bonded self-lubricating FrelonGOLD® liner that facilitates smooth linear, rotational, or oscillating motion on round shafts in harsh conditions where contamination, vibration, shock loads, washdowns, temperature extremes, lubricant maintenance difficulties, or..
$15.98
Thin-wall plain linear bearing, closed-shell, with a 15mm compensated ID (inner diameter) that provides a 0.0015" running clearance per side on matching round shafts. This compact FAG-interchange bearing is encased in a thin-wall anodized aluminum outer shell and features a bonded Simplicity® self-lubricating FrelonGOLD® bore liner for oil-free, maintenance-free linear,..
$18.55
Thin-wall plain linear bearing, closed-shell, with a 12mm compensated ID (inner diameter) that provides a 0.0015" running clearance per side on matching round shafts. This compact FAG-interchange bearing is encased in a thin-wall anodized aluminum outer shell and features a bonded Simplicity® self-lubricating FrelonGOLD® bore liner for oil-free, maintenance-free linear,..
$16.62
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 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 precision 40mm ID, 52mm OD and 60mm length, ISO Metric, featuring a self-lubricating FrelonGOLD® liner for maintenance-free, oil-free operation in harsh conditions including extreme temperatures, dirt, vibration and shock. The precision ID provides 0.0005" running clearance per side. Static load capacity is 49,442..
$67.37
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
Round flanged sleeve bearing, 35mm ID, 45mm OD and 35mm length with a closed lightweight aluminum alloy shell. This Simplicity® plain bushing supports linear, rotational, and oscillating motion with a bonded, self-lubricating FrelonGOLD® liner that eliminates grease and reduces maintenance in harsh operating conditions. Built for environments where heat, dirt,..
$69.30
Plain linear bearing, closed, with an 80mm compensated ID that provides a 0.0015" running clearance per side. Encased in a standard cylindrical anodized aluminum shell, this bearing features a bonded Simplicity® self-lubricating FrelonGOLD® bore liner for maintenance-free linear, rotating and oscillating motion in harsh environments such as extreme temperatures, dirt,..
$353.77
Plain linear bearing, closed, with a 60mm compensated ID that provides a 0.0015" running clearance per side on round shafts. Encased in a standard cylindrical anodized aluminum shell, this bearing features a bonded Simplicity® self-lubricating FrelonGOLD® bore liner for maintenance-free linear, rotating and oscillating motion in harsh environments such as..
$221.11
Plain linear bearing, closed, with a 50mm compensated ID that provides a 0.0015" running clearance per side on round shafts. Encased in a standard cylindrical anodized aluminum shell, this bearing features a bonded Simplicity® self-lubricating FrelonGOLD® bore liner for maintenance-free linear, rotating and oscillating motion in harsh environments such as..
$130.84
Plain linear bearing, closed, with a 20mm compensated ID that provides a 0.0015" running clearance per side on round shafts. Encased in a standard cylindrical anodized aluminum shell, this bearing features a bonded Simplicity® self-lubricating FrelonGOLD® bore liner for maintenance-free linear, rotating and oscillating motion in harsh environments such as..
$21.00
Plain linear bearing, closed, with a 10mm compensated ID that provides a 0.0015" running clearance per side on matching round shafts. Encased in a standard cylindrical anodized aluminum shell, this bearing features a bonded Simplicity® self-lubricating FrelonGOLD® bore liner for maintenance-free linear, rotating and oscillating motion in harsh environments such..
$17.71
Plain linear bearing, closed, with a 16mm compensated ID that provides a 0.0015" running clearance per side on round shafts. Encased in a standard cylindrical anodized aluminum shell, this bearing features a bonded Simplicity® self-lubricating FrelonGOLD® bore liner for maintenance-free linear, rotating and oscillating motion in harsh environments such as..
$20.59
Plain linear bearing, self-aligning, closed, with a 60mm compensated ID that provides a 0.0015" running clearance per side on matching round shafts. Encased in a crowned-OD cylindrical anodized aluminum shell; the curve allows the bearing to pivot slightly within a pre-existing housing or machined bore to accommodate angular misalignment between..
$291.85
Plain linear bearing, self-aligning, closed, with an 80mm compensated ID that provides a 0.0015" running clearance per side on matching round shafts. Encased in a crowned-OD cylindrical anodized aluminum shell; the curve allows the bearing to pivot slightly within a pre-existing housing or machined bore to accommodate angular misalignment between..
$442.22
Plain linear bearing, self-aligning, closed, with a 50mm compensated ID that provides a 0.0015" running clearance per side on matching round shafts. Encased in a crowned-OD cylindrical anodized aluminum shell; the curve allows the bearing to pivot slightly within a pre-existing housing or machined bore to accommodate angular misalignment between..
$172.71
Plain linear bearing, self-aligning, closed, with a 30mm compensated ID that provides a 0.0015" running clearance per side on matching round shafts. Encased in a crowned-OD cylindrical anodized aluminum shell; the curve allows the bearing to pivot slightly within a pre-existing housing or machined bore to accommodate angular misalignment between..
$86.16
Plain linear bearing, self-aligning, closed, with a 20mm compensated ID that provides a 0.0015" running clearance per side on matching round shafts. Encased in a crowned-OD cylindrical anodized aluminum shell; the curve allows the bearing to pivot slightly within a pre-existing housing or machined bore to accommodate angular misalignment between..
$25.22
Plain linear bearing, self-aligning, closed, with a 40mm compensated ID that provides a 0.0015" running clearance per side on matching round shafts. Encased in a crowned-OD cylindrical anodized aluminum shell; the curve allows the bearing to pivot slightly within a pre-existing housing or machined bore to accommodate angular misalignment between..
$98.84
238 products

Plain Linear Bearings - Closed

238 products

Closed-shell plain linear bearings from the Simplicity® line feature a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh environments, handling extreme temperatures from -400°F to +400°F (-240°C to 204°C) and resisting dirt, shock, and vibration. Available in inch (3/16" to 4"), ISO metric (5 mm to 80 mm), and JIS sizes, they are designed for end-supported shafting, with static load capacities up to 166,000 lb (740 kN) and speeds up to 8 m/s (315 in/s). Options include aluminum or stainless steel shells, precision or compensated running clearances (0.0005" or 0.0015" per side), and standard or self-aligning ODs to accommodate misalignment. Interchangeable with many linear ball bearings and some bronze bushings, they are well suited for heavy-load applications involving linear, rotational, or oscillating motion.

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. 

  • 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