Linear Bearing - Plain, Open

Plain Linear Bearings

Plain linear bearings of the Simplicity® line featuring 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.

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Plain Linear Bearings

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313 products
Open 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 in harsh and/or high temperature environments. The anodized aluminum..
$28.75
Closed plain linear bearing with a JIS 6mm ID, compensated 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 poor..
$15.98
Closed shell plain linear bearing with a JIS 8mm 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
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
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
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 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
Open plain linear bearing with a 5mm ISO Metric precision ID which has a 0.0005" running clearance per side on round shafts. The open shell design provides clearance for rail-supported shafting or profiled rails, while the bonded, self-lubricating FrelonGOLD® liner facilitates maintenance-free linear, rotational, and oscillating motion without grease. Built..
$19.82
Open plain linear bearing with a 5mm ISO metric compensated ID which has a 0.0015" running clearance per side on round shafts. The open shell design provides clearance for rail-supported shafting or profiled rails, while the self-lubricating FrelonGOLD® liner facilitates maintenance-free linear, rotational, and oscillating motion without grease. Built for..
$19.82
Plain linear bearing, closed, with a 30mm 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..
$65.27
Plain linear bearing, closed, with a 40mm 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..
$74.87
Plain linear bearing, closed, with a 5mm 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..
$15.98
Plain linear bearing, self-aligning, closed, with a 25mm 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..
$48.54
Plain linear bearing, closed, with a 40mm precision ID (inner diameter) that provides a 0.0005" 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, rotational, and oscillating motion in harsh..
$74.87
Plain linear bearing, closed, with a 30mm precision ID (inner diameter) that provides a 0.0005" 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, rotational, and oscillating motion in harsh..
$65.27
Plain linear bearing, closed, with a 10mm precision ID (inner diameter) that provides a 0.0005" 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, rotational, and oscillating motion in harsh..
$17.71
Plain linear bearing, closed, with a 5mm precision ID (inner diameter) that provides a 0.0005" 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, rotational, and oscillating motion in harsh..
$15.98
Open plain linear bearing with a 2" precision ID for round shafts, which provides a 0.0005" running clearance per side. The open anodized aluminum shell provides clearance for rail-supported shafting or profiled rails, while the bonded, self-lubricating FrelonGOLD® liner supports maintenance-free linear, rotational, and oscillating motion without grease. Built for..
$163.00
Open plain linear bearing with a 1/2" precision ID for round shafts, which provides a 0.0005" running clearance per side. The open anodized aluminum shell provides clearance for rail-supported shafting or profiled rails, while the bonded, self-lubricating FrelonGOLD® liner supports maintenance-free linear, rotational, and oscillating motion without grease. Built for..
$25.63
313 products

Plain Linear Bearings

313 products

Plain linear bearings of the Simplicity® line featuring 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