Linear Bearing - Plain, Open

Plain Linear Bearings

Plain linear bearings of the Simplicity® line feature 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

314 products
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314 products
Self-aligning closed plain linear bearing with a 150mm JIS ID, compensated with 0.0015" running clearance per side. The green anodized aluminum shell ensures robust durability, while the FrelonGOLD® liner delivers self-lubricating, maintenance-free performance with vibration damping.  Crowned outer diameter (OD) is self-aligning Meets JIS metric tolerance standards for precision and..
$1,447.50
Closed plain linear bearing, self-aligning, with a 150mm JIS precision ID with 0.0005" running clearance per side. The green anodized aluminum shell ensures robust durability, while the FrelonGOLD® liner delivers self-lubricating, maintenance-free performance with vibration damping.  Crowned outer diameter (OD) Meets JIS metric tolerance standards for precision and compatibility Optional..
$1,447.50
Closed plain linear bearing with a JIS Metric 150mm ID, compensated with 0.0015" running clearance per side. Its green anodized aluminum shell ensures robust durability, while the FrelonGOLD® liner delivers self-lubricating, maintenance-free performance with vibration damping.  Meets JIS metric tolerance standards for precision and compatibility Nominal ID of 150.21 mm..
$725.29
Self-aligning closed plain linear bearing with a 120mm JIS compensated ID that has a 0.0015" running clearance per side. The green anodized aluminum shell ensures robust durability, while the FrelonGOLD® liner delivers self-lubricating, maintenance-free performance with vibration damping.  Crowned outer diameter (OD) is self-aligning Meets JIS metric tolerance standards for..
$935.62
Self-aligning plain linear bearing with a 120mm 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.  Crowned outer diameter (OD) is self-aligning..
$935.62
JIS plain linear bearing with an 80mm ID, open, compensated with 0.0015" running clearance per side. Its green anodized aluminum shell ensures robust durability, while the FrelonGOLD® liner delivers self-lubricating, maintenance-free performance with vibration damping. The open shell is tailored for rail-supported shafting. Meets JIS metric tolerance standards for precision..
$543.95
Self-aligning closed plain linear bearing with a 50mm JIS compensated ID that has a 0.0015" running clearance per side. The green anodized aluminum shell ensures robust durability, while the FrelonGOLD® liner delivers self-lubricating, maintenance-free performance with vibration damping.  Crowned outer diameter (OD) is self-aligning Meets JIS metric tolerance standards for..
$168.79
Closed plain linear bearing with a JIS Metric 38mm ID, compensated with 0.0015" running clearance per side. Its green anodized aluminum shell ensures robust durability, while the FrelonGOLD® liner delivers self-lubricating, maintenance-free performance with vibration damping.  Meets JIS metric tolerance standards for precision and compatibility Optional Frelon® J or W..
$74.87
Self-aligning closed plain linear bearing with a 38mm JIS compensated ID that has a 0.0015" running clearance per side. The green anodized aluminum shell ensures robust durability, while the FrelonGOLD® liner delivers self-lubricating, maintenance-free performance with vibration damping.  Crowned outer diameter (OD) is self-aligning Meets JIS metric tolerance standards for..
$96.58
Open plain linear bearing of 38mm JIS ID with a precision running clearance of 0.0005" per side. Its green anodized aluminum shell ensures robust durability, while the FrelonGOLD® liner delivers self-lubricating, maintenance-free performance with vibration damping. The open shell is tailored for rail-supported shafting. Straight outer diameter (OD) Meets JIS..
$93.14
JIS plain linear bearing with a 38mm ID, open, compensated with 0.0015" running clearance per side. Its green anodized aluminum shell ensures robust durability, while the FrelonGOLD® liner delivers self-lubricating, maintenance-free performance with vibration damping. The open shell is tailored for rail-supported shafting. Straight outer diameter (OD) Meets JIS metric..
$93.14
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
Self-aligning closed plain linear bearing with a 30mm JIS compensated ID that has a 0.0015" running clearance per side. The green anodized aluminum shell ensures robust durability, while the FrelonGOLD® liner delivers self-lubricating, maintenance-free performance with vibration damping.  Crowned outer diameter (OD) is self-aligning Meets JIS metric tolerance standards for..
$84.20
JIS plain linear bearing with an 8mm ID, open, compensated with 0.0015" running clearance per side. Its green anodized aluminum shell ensures robust durability, while the FrelonGOLD® liner delivers self-lubricating, maintenance-free performance with vibration damping. The open shell is tailored for rail-supported shafting. Straight outer diameter (OD) Meets JIS metric..
$19.82
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
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 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
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
314 products

Plain Linear Bearings

314 products

Plain linear bearings of the Simplicity® line feature 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