Linear Bearings from PBC Linear

Linear Bearings

Linear bearings are precision-bored mechanical components with open or closed housings that incorporate low-friction elements along the inner diameter that slide or roll in a straight path on shafts or profiled rails.  We manufacture Simplicity® Plain Linear Bearings featuring 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. Our Roller Pillow Blocks come with single, double, or twin sets of coated steel rollers in an open 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, and in inch, metric and JIS metric sizes. Plain bearings also include variants such as sleeve bearings, square bearings, and die set bearings.

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Linear Bearings

1287 products
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1287 products
Square Linear Bearing with a 1.5" diameter, 6" length, featuring 4 adjustable Frelon®J self-lubricating plugs on each of two adjacent sides (at right angles to each other) and Frelon pads on the opposing sides for smooth, corrosion-resistant sliding on a stainless steel square shaft. Crafted from anodized aluminum, this low-maintenance..
$228.40
Linear Ball Bearing, closed, with a 1/4" inner diameter (ID). Interchangeable with industry standards, this bearing has a low coefficient of friction, a heat-treated alloy steel shell for durability, and a resin retainer polymer cage to reduce noise.  Temperature Range: -4/+176°F (-20/+80°C) Variant ID Sizes: Available from 1/4" to 2”..
$12.78
Single Linear Roller Bearing Pillow Block for a 1/2-inch shaft diameter, featuring 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 1/2" linear shaft No scrapers..
$192.79
Single Linear Roller Bearing Pillow Block for a 1-inch shaft diameter, featuring 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 1" linear shaft No scrapers..
$171.81
Square Flanged Plain Linear Bearing, standard sized, with a 1/2" compensated ID, and featuring a self-lubricating FrelonGOLD® bearing liner that operates effectively in harsh conditions, providing oil-free operation.  Compensated running clearance on the inner diameter 0.0015” per side Spherical 'Self-aligning' I.D. in the housing. Self-aligning housing Standard Width Square Flange..
$70.41
Twin sized plain linear bearing pillow block, open shell, 1" ID, made of aluminum alloy with holes for mounting and featuring a precision cut Simplicity® plain bearing with an anodized aluminum shell and the renowned self-lubricating FrelonGOLD® bearing liner for maintenance-free operation, low friction, and durability in extreme conditions like..
$212.44
Simplicity® Plain Linear Sleeve Bearing with a 1/2" 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..
$21.24
Simplicity® Flanged Plain Linear Sleeve Bearing with a 1/4" inner diameter and a length of 1/2" with a round flange end mount. This closed plain bushing is designed for both linear and rotational movement. The self-lubricating, maintenance-free bearing liner is FrelonGold® by default, ensuring performance in hot and/or dirty environments..
$18.81
Linear Sleeve Bearing with a 1/4" inner diameter, 3/8" length and closed aluminum alloy shell. This maintenance-free Simplicity® plain bushing is designed for both linear and rotational movement. The self-lubricating FrelonGold® bearing liner guarantees performance in extreme environments, including heat, dirt, and oscillation, eliminating the risk of catastrophic failure. Temperature..
$10.70
Closed Plain Linear Bearing Pillow Block with a 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..
$263.51
Closed Plain Linear Bearing Pillow Block with a 1/2" 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 FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. Optional liners: corrosive chemical..
$54.09
Plain linear bearing, closed, with a 25mm precision ID (inner diameter) that provides a running clearance of 0.0005" per side. Lined with self-lubricating FrelonGOLD® for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. ISO Metric Series - Closed Straight outer diameter (crowned ODs available via the FMA..
$38.84
Plain linear bearing, closed, with a 12mm precision ID (inner diameter) that provides a running clearance of 0.0005" per side. Lined with self-lubricating FrelonGOLD® for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. ISO Metric Series - Closed Straight outer diameter (crowned ODs available via the FMA..
$18.46
Open plain linear bearing with a 1" precision ID, which has a 0.0005" per side running clearance. Encased in an anodized aluminum shell and lined with self-lubricating FrelonGOLD®, this bearing ensures maintenance-free performance in harsh conditions, including extreme temperatures, dirt, and vibration. Inch Series - Open anodized aluminum shell Precision..
$49.07
Single Linear Roller Bearing Pillow Block for a 3/4-inch shaft diameter, featuring a beryllium copper scraper mounted to each end of the bearing assembly and 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..
$164.11
For 5/8" or 16 mm diameter linear shafts, this kit will replace the triad of opposing rollers on a single roller bearing pillow block (SPB series). Be sure to order 2 kits for a double or twin pillow block, DPB or TWN series). The kit contains: 1 fixed side roller..
$118.43
Linear ball bearing, open, with a 20mm ID (inner diameter). Featuring a heat-treated alloy steel shell for durability, a resin retainer polymer cage for reduced noise and a low coefficient of friction for speed. Handles cantilevered loads better than plain bearings, overcoming the 2:1 binding ratio limitation of plain bearings...
$28.59
Linear Ball Bearing, closed, with a 1/2" inner diameter (ID). Interchangeable with industry standards, this bearing has a low coefficient of friction, a heat-treated alloy steel shell for durability, and a resin retainer polymer cage to reduce noise.  Temperature Range: -4/+176°F (-20/+80°C) Variant ID Sizes: Available from 1/4" to 2”..
$14.42
Twin Roller Bearing Pillow Block with an open bearing style for a 1.25" 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 housing, as..
$416.40
Single Linear Roller Bearing Pillow Block for a 1.5-inch shaft diameter, featuring 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 1.5" linear shaft No scrapers..
$241.96

Linear Bearings

1287 products
Linear Bearings

Linear bearings are precision-bored mechanical components with open or closed housings that incorporate low-friction elements along the inner diameter that slide or roll in a straight path on shafts or profiled rails.  We manufacture Simplicity® Plain Linear Bearings featuring 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. 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, and in inch, metric and JIS metric 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


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


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