Linear Ball Bearing - Bushing

Linear Ball Bushings

Cylindrical linear ball bearings for round steel shafts use recirculating steel balls to provide low-friction rolling element motion along a straight-line axis with one degree of freedom. Compared with plain bearings, they are better suited for higher speeds, longer strokes, and overhanging cantilevered loads where the 2:1 binding rule can be a concern. Linear ball bearings from PBC Linear use heat-treated alloy steel shells for durability, precision steel balls for smooth travel, resin retainers for reduced noise, and standard double seals to help keep contaminants out. Available configurations include closed, adjustable, open, self-aligning, double-size, and compact thin-wall designs, with the IP Series for inch sizes, EP Series for ISO metric sizes, JP Series for JIS metric sizes, IPS Series for self-aligning inch bearings, and KHP Series for compact thin-wall ISO metric bearings. Inch, ISO metric, and JIS metric sizes are offered from 1/4" to 2" and 5mm to 50mm, with dimensional interchangeability to industry standards and PBC Linear Simplicity® plain linear bearings. These bearings operate across temperatures from -4°F to +176°F (-20°C to +80°C). Pillow block and flanged linear ball bearing assemblies are listed separately for applications that require mounted housings.

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137 products
Linear ball bearing, closed, with a 1/4" inner diameter (ID). Its ball bearing design provides high speed linear motion with a low coefficient of friction and offers an advantage in cantilevered applications where plain bearings may be limited by the 2:1 binding rule. The heat-treated alloy steel shell provides durability,..
$12.78
Linear ball bearing, closed, with a 3/4" inner diameter (ID). Its ball bearing design provides high speed linear motion with a low coefficient of friction and offers an advantage in cantilevered applications where plain bearings may be limited by the 2:1 binding rule. The heat-treated alloy steel shell provides durability,..
$17.37
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). Its ball bearing design provides high speed linear motion with a low coefficient of friction and offers an advantage in cantilevered applications where plain bearings may be limited by the 2:1 binding rule. The heat-treated alloy steel shell provides durability,..
$14.42
Closed linear ball bearing with a 3/8" ID, self-aligning, featuring a heat-treated alloy steel shell and resin retainer for reduced noise. It offers a low coefficient of friction, includes double seals at no extra cost, and operates from -4°F to 176°F (-20°C to 80°C). Variants available in sizes from 1/4"..
$23.09
Closed linear ball bearing with a 1/2" ID, self-aligning, featuring a heat-treated alloy steel shell and resin retainer for reduced noise. It offers a low coefficient of friction, includes double seals at no extra cost, and operates from -4°F to 176°F (-20°C to 80°C). Variants available in sizes from 1/4"..
$24.80
Linear ball bearing, closed shell, with a 20mm ID JIS Metric, featuring a standard-sized heat-treated alloy steel shell that enhances durability and load capacity. Recommended over plain bearings in cantilevered applications as the 2:1 binding rule does not apply. Double seals add protection, a low coefficient of friction enables higher..
$21.30
Linear ball bearing, closed, with a 1" inner diameter (ID). Its ball bearing design provides high speed linear motion with a low coefficient of friction and offers an advantage in cantilevered applications where plain bearings may be limited by the 2:1 binding rule. The heat-treated alloy steel shell provides durability,..
$31.78
Closed Linear Ball Bearing with a 25mm ID (inner diameter). Heat treated allow steel shell for durability, low coefficient of friction for speed and resin retainer for quiet motion. ISO Metric Series - Closed shell for end-supported shafts Handles cantilevered loads better than plain bearings Temperature Range: -4/+176°F (-20/+80°C) Variant..
$31.12
Double linear ball bearing, closed, with a 1/2" inner diameter (ID). The twin-size format equals two standard linear ball bearings mounted back-to-back for added stability. Its ball bearing design provides a low coefficient of friction and offers an advantage in cantilevered applications where plain bearings may be limited by the..
$32.67
Linear ball bearing, closed, with a 3/8" inner diameter (ID). Its ball bearing design provides high speed linear motion with a low coefficient of friction and offers an advantage in cantilevered applications where plain bearings may be limited by the 2:1 binding rule. The heat-treated alloy steel shell provides durability,..
$13.84
Closed linear ball bearing with a 1/4" ID, self-aligning, featuring a heat-treated alloy steel shell and resin retainer for reduced noise. It offers a low coefficient of friction, includes double seals at no extra cost, and operates from -4°F to 176°F (-20°C to 80°C). Variants available in sizes from 1/4"..
$22.57
Linear ball bearing, closed, with a 1.25" inner diameter (ID). Its ball bearing design provides high speed linear motion with a low coefficient of friction and offers an advantage in cantilevered applications where plain bearings may be limited by the 2:1 binding rule. The heat-treated alloy steel shell provides durability,..
$53.10
Thin-walled linear ball bearing, 20 mm ID, 28 mm OD and 30 mm length, with a closed design for compact linear motion systems where radial space is limited. Recirculating balls run within a slim heat-treated alloy steel shell, while a polymer resin retainer guides the balls and helps reduce operating..
$20.77
Self-aligning closed linear ball bearing with a 50mm 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..
$169.65
Self-aligning open linear ball bearing with a 25mm inner diameter. Featuring a heat-treated alloy steel shell for durability and 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..
$51.04
Thin-walled linear ball bearing with a 6mm bore, 12mm OD and 22mm length, designed for compact applications requiring minimal radial space. This ISO metric bearing uses a closed shell to protect the internal recirculating ball system from contamination. Its low-friction ball design is ideal for cantilevered loads because it is..
$11.50
Closed linear ball bearing with a 5/8" ID, self-aligning, featuring a heat-treated alloy steel shell and resin retainer for reduced noise. It offers a low coefficient of friction, includes double seals at no extra cost, and operates from -4°F to 176°F (-20°C to 80°C). Variants available in sizes from 1/4"..
$27.48
Open Linear Ball Bearing, self-aligning, with a 2" ID and a low coefficient of friction. Constructed with a heat-treated alloy steel shell, the resin retainer effectively reduces noise during operation, while double seals are included as standard at no additional cost. Open shell for use with rail supported round linear..
$221.63
Linear ball bearing, closed, with a 1.5" inner diameter (ID). Its ball bearing design provides high speed linear motion with a low coefficient of friction and offers an advantage in cantilevered applications where plain bearings may be limited by the 2:1 binding rule. The heat-treated alloy steel shell provides durability,..
$62.14
137 products

Linear Ball Bushings

137 products

Cylindrical linear ball bearings for round steel shafts use recirculating steel balls to provide low-friction rolling element motion along a straight-line axis with one degree of freedom. Compared with plain bearings, they are better suited for higher speeds, longer strokes, and overhanging cantilevered loads where the 2:1 binding rule can be a concern. Linear ball bearings from PBC Linear use heat-treated alloy steel shells for durability, precision steel balls for smooth travel, resin retainers for reduced noise, and standard double seals to help keep contaminants out. Available configurations include closed, adjustable, open, self-aligning, double-size, and compact thin-wall designs, with the IP Series for inch sizes, EP Series for ISO metric sizes, JP Series for JIS metric sizes, IPS Series for self-aligning inch bearings, and KHP Series for compact thin-wall ISO metric bearings. Inch, ISO metric, and JIS metric sizes are offered from 1/4" to 2" and 5mm to 50mm, with dimensional interchangeability to industry standards and PBC Linear Simplicity® plain linear bearings. These bearings operate across temperatures from -4°F to +176°F (-20°C to +80°C). Pillow block and flanged linear ball bearing assemblies are listed separately for applications that require mounted housings.

 

Key Features of Linear Ball Bearings:

  • Interchangeability: Compatible with industry standards and PBC Linear Simplicity bearings.
  • Material: High-quality heat-treated alloy steel shells with a low coefficient of friction.
  • Self-Lubricating: Maintenance-free operation with FrelonGOLD®, Frelon J, and Frelon W liners.
  • Durability: Resin retainers for reduced noise and double seals included as standard.
  • Temperature Range: Suitable for environments ranging from -4°F to +176°F (-20°C to +80°C).
  • Designs: Available in closed, adjustable, open, wide, and compact thin-wall configurations.
  • Size Ranges: Available from 1/4" to 2" (Imperial) and 5 mm to 50 mm (Metric and JIS).


Linear Ball Bearing Product Variants:

  • IP Series (Inch): Closed, adjustable, and open models for traditional imperial measurements.
  • EP Series (ISO Metric): Closed, adjustable, and open designs tailored for European standards.
  • JP Series (JIS Metric): Closed, adjustable, and open types for Asian standards.
  • IPS Series (Inch): Self-aligning models for increased tolerance to misalignment.
  • KHP Series (ISO Metric): Compact thin-wall bearings for space-sensitive applications.
  • Wide Series (Inch and Metric): Double-length versions for increased load capacities.