Linear Bearings from PBC Linear

Linear Bearings

Linear bearings are mechanical components that slide or roll along round or square shafts, enabling linear motion by reducing friction. PBC Linear manufactures bearings in the US, including the Simplicity® Plain Linear Bearings that feature a self-lubricating FrelonGold® PTFE liner for maintenance-free sliding in harsh environments. Our Linear Ball Bearings include a durable heat-treated outer ring, a quiet resin retainer polymer cage, and low-friction steel balls for speed. Additionally, our roller pillow blocks come with single, double, or twin sets of coated steel rollers in an open aluminum housing, designed to roll along rail-supported steel shafts for heavy-duty applications. Plain linear bearings support rotary, linear, or oscillating motion, while ball bearings avoid the 2:1 binding ratio associated with plain bearings. Both types are available in single, double, pillow block, and flange mounts, as well as Inch, ISO Metric, and JIS metric ID sizes. Plain bearings also include variants such as sleeve bearings, square bearings, and die set bearings.

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Linear Bearings

1262 products
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1262 products
Simplicity® Die Set Plain Linear Bearing of 25mm ISO Metric ID (inner diameter.) Precision running clearance on the inner diameter of 0.0005” per side. ISO Metric Precision ID Running Clearance Standard Size Linear and Rotational movement Self-Lubricating Bearing Liner: FrelonGOLD® is standard Optional liners include Frelon®J for corrosive chemical environments &..
$79.93
Closed Plain Linear Bearing Pillow Block with a 3/4" inner diameter and a compensated running clearance of 0.0015" per side. A mountable standard-sized aluminum housing encloses the bearing, which features a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. Optional liners: corrosive chemical..
$63.71
Closed Plain Linear Bearing Pillow Block with a 5/8" inner diameter and a compensated running clearance of 0.0015" per side. A mountable standard-sized aluminum housing encloses the bearing, which features a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. Optional liners: corrosive chemical..
$60.59
Closed Plain Linear Bearing Pillow Block with a 1/4" inner diameter and a compensated running clearance of 0.0015" per side. A mountable standard-sized aluminum housing encloses the bearing, which features a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. Optional liners: corrosive chemical..
$46.83
Closed Plain Linear Bearing Pillow Block with a 1/2" inner diameter and a compensated running clearance of 0.0015" per side. A mountable standard-sized aluminum housing encloses the bearing, which features a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. Optional liners: corrosive chemical..
$54.09
Closed Plain Linear Bearing Pillow Block with a 3/8" inner diameter and a compensated running clearance of 0.0015" per side. A mountable standard-sized aluminum housing encloses the bearing, which features a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. Optional liners: corrosive chemical..
$48.89
Closed Plain Linear Bearing Pillow Block with a 1/4" inner diameter and a precision running clearance of 0.0005" per side. A mountable standard-sized aluminum housing encloses the bearing, which features a self-lubricating liner made from FrelonGOLD® for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. Optional liners:..
$46.83
Twin (TWN) Roller Bearing Pillow Block designed for a 25mm diameter shaft covers twice the space on a linear shaft compared to a single roller pillow block (SPB). The twin pillow block features two sets of 3 opposing roller bearings mounted in a larger twin open bearing housing, as if..
$323.92
Twin (TWN) Roller Bearing Pillow Block designed for a 30mm diameter shaft covers twice the space on a linear shaft compared to a single roller pillow block (SPB). The twin pillow block features two sets of 3 opposing roller bearings mounted in a larger twin open bearing housing, as if..
$441.08
Twin (TWN) Roller Bearing Pillow Block designed for a 16mm diameter shaft covers twice the space on a linear shaft compared to a single roller pillow block (SPB). The twin pillow block features two sets of 3 opposing roller bearings mounted in a larger open bearing twin housing, as if..
$259.11
Single Linear Roller Bearing Pillow Block for a 16mm shaft diameter with an open bearing style. A set of three opposing roller bearings includes one eccentric bearing that allows for alignment adjustments, while the other two provide balanced support to optimize load distribution.  Fits a 16mm linear shaft No copper..
$175.20
Single Linear Roller Bearing Pillow Block for a 20mm shaft diameter with an open bearing style. A set of three opposing roller bearings includes one eccentric bearing that allows for alignment adjustments, while the other two provide balanced support to optimize load distribution.  Fits a 20mm linear shaft No copper..
$142.60
Single Roller Bearing Pillow Block (SPB Series) for a 30mm shaft diameter. Comes with 1 set of 3 opposing roller bearings, including a regular roller, an eccentric roller and a top support roller. Single Roller Bearing Pillow Block Use with a Linear Shaft of 30mm Diameter Use a "Floating" part..
$220.56
Double Roller Bearing Pillow Block (DPB-16) for a 16mm diameter shaft, which has two sets of 3 opposing roller bearings while maintaining the standard size open bearing profile of a Single Roller Pillow Block (SPB); thus the term "Double." By contrast, a Twin Roller Pillow Block (TWN) also has two..
$263.67
Double Roller Bearing Pillow Block (MDPB-30) for a 30mm diameter shaft, which has two sets of 3 opposing roller bearings while maintaining the standard size open bearing profile of a Single Roller Pillow Block (SPB); thus the term "Double." By contrast, a Twin Roller Pillow Block (TWN) also has two..
$419.04
Double Roller Bearing Pillow Block (MDPB-25) for a 25mm diameter shaft in an open bearing style with two sets of 3 opposing roller bearings while maintaining the standard size profile of a Single Roller Pillow Block (SPB); thus the term "Double." By contrast, a Twin Roller Pillow Block (TWN) also..
$326.70
Double Roller Bearing Pillow Block (MDPB-20) in an open bearing style for a 20mm diameter shaft, which has two sets of 3 opposing roller bearings while maintaining the standard size profile of a Single Roller Pillow Block (SPB); thus the term "Double." By contrast, a Twin Roller Pillow Block (TWN)..
$269.77
Thin walled compact linear ball bearing of 40mm ID (inner diameter). The KHP bearings are all closed and are great for space sensitive applications. Inner Diameter (ID): 40mm Outer Diameter (OD): 52mm Max Dynamic Load Rating: 4400 N Product Line has a range of ISO Metric 6mm to 50mm IDs..
$67.73
Thin walled compact linear ball bearing of 14mm ID (inner diameter). The KHP line is great for space sensitive applications. Closed Inner Diameter (ID): 14mm Outer Diameter (OD): 21mm Max Dynamic Load Rating: 620 N Product Line has a range of ISO Metric 6mm to 50mm IDs We recommend certified..
$19.46
Thin walled compact linear ball bearing of 50mm ID (inner diameter). The KHP line is great for space sensitive applications.  Inner Diameter (ID): 50mm Outer Diameter (OD): 62mm Closed, Compact Max Dynamic Load Rating: 5500 N Product Line has a range of ISO Metric 6mm to 50mm IDs We recommend..
$57.04

Linear Bearings

1262 products

Linear bearings are mechanical components that slide or roll along round or square shafts, enabling linear motion by reducing friction. PBC Linear manufactures bearings in the US, including the Simplicity® Plain Linear Bearings that feature a self-lubricating FrelonGold® PTFE liner for maintenance-free sliding in harsh environments. Our Linear Ball Bearings include a durable heat-treated outer ring, a quiet resin retainer polymer cage, and low-friction steel balls for speed. Additionally, our roller pillow blocks come with single, double, or twin sets of coated steel rollers in an open aluminum housing, designed to roll along rail-supported steel shafts for heavy-duty applications. Plain linear bearings support rotary, linear, or oscillating motion, while ball bearings avoid the 2:1 binding ratio associated with plain bearings. Both types are available in single, double, pillow block, and flange mounts, as well as Inch, ISO Metric, and JIS metric ID sizes. Plain bearings also include variants such as sleeve bearings, square bearings, and die set bearings.

PBC Linear® Specifications for Simplicity Plain Linear Bearings:

  • Self-Lubricating Bearing Liner: FrelonGOLD® is standard;
  • Optional liners include Frelon® J for corrosive chemical conditions and Frelon® W (FDA compliant)
  • 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
  • Maximum Horizontal Static Load: 2,165-100,500 lb (982- 45,586 kg)l
  • Maximum Speed: Up to 8 m/s (315 in/s)
  • Shaft Lengths: Up to 12 feet
  • Shell Material: Standard is aluminum; stainless steel shells are available
  • 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

Specifications for Linear Ball Bearings:

  • Temperature Range: -4/+176°F (-20/+80°C)
  • ID Sizes: Available from 1/4" to 2” Inch Series, and 8mm to 50mm Metric Series
  • Static Load Capacities: Up to 1700 lb (7900 N)
  • Dynamic Load Capacities: Up to 850 lb (3800 N)
  • Interchangeable: Size interchangeable with industry standards and the Simplicity plain linear bearing series
  • Low Coefficient of Friction: Ensures smooth operation
  • Heat Treated Alloy Steel Shell: Provides durability
  • Resin Retainer: Reduces noise
  • Double Seals: Included as standard at no additional cost

Specifications for Roller Bearing Pillow Blocks:

  • Use a floating "F" part number for each opposing block on parallel shafts to accommodate imperfect alignments.
  • A set of opposing roller bearings consists of 1 fixed side roller, 1 eccentric side roller (to account for any misalignment) and a top support roller
  • FUBK Series replacement kits include one new roller for each of the three in a set
  • Order two replacement kits to cover more than one set of opposing bearings

Browse the below categories to see the many variants and sizes to choose from. You can also view more product features and loop around back to the online store.

Types of Linear Bearings we offer are: Linear Plain Bearings, Linear Plain Bearing Flange Mounts, Linear Plain Sleeve Bearings, Linear Plain Pillow Block Bearings, Linear Plain Bearing Flange Die Set Bushings, Linear Plain Square Bearings, Linear Ball Bearings, Linear Ball Bearing Flange Mounts, Linear Ball Bearing Pillow Blocks, Roller Pillow Block Bearings, Single Roller Pillow Block Bearings, Double Roller Pillow Block Bearings, Twin Roller Pillow Block Bearings