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Linear Bearings
Linear Ball Bearings
Linear Ball Bearing

Linear Ball Bearings

Linear ball bearings are rolling-element linear bearings that use recirculating hardened steel balls instead of sliding elements to provide low-friction, straight-line motion along round shafts with only one degree of freedom. They are better suited than plain linear bearings for higher speeds, longer strokes, and overhanging cantilevered loads due to their lower coefficient of friction and because plain bearings may bind under the 2:1 rule, requiring plain bearing spacing to be at least twice the load overhang, a rule rolling-element bearings are not subject to. PBC Linear linear ball bearings feature heat-treated alloy steel shells for durability, precision steel balls for smooth travel, molded polymer resin retainers for reduced noise, and standard double seals to help keep contaminants out. However, linear ball bearings typically require more maintenance than plain bearings, including periodic lubrication and greater care to keep debris, contamination, shock, and vibration away from the rolling elements. Available in closed, open, adjustable, self-aligning, flanged, pillow block, and double-wide configurations, PBC Linear ball bearings are dimensionally interchangeable with industry standards and cover inch sizes from 1/4 in. to 2 in. ID and metric sizes from 8 mm to 50 mm ID. Static load capacities reach up to 3,500 lb. (15,900 N) and dynamic load capacities up to 1,300 lb. (6,000 N), with operating temperatures from -4°F to 176°F (-20°C to 80°C).

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Linear Ball Bushings

Linear Ball Bushings

137 Products
Flanged Linear Ball Bearings

Flanged Linear Ball Bearings

114 Products
Linear Ball Bearing Pillow Blocks

Linear Ball Bearing Pillow Blocks

75 Products
326 products
Pillow Block Bearing - Ball Bearing Twin Closed Inch - IPPW08G 1/2"

Twin Pillow Block Linear Ball Bearing IPPW08G 1/2" Closed

$103.39

Twin Pillow Block Linear Ball Bearing IPPW08G 1/2" Closed

$103.39
Twin Linear Ball Bearing Pillow Block, closed shell, with a 1/2" ID (inner diameter) bearing inside a housing made of aluminum alloy. Features a low coefficient of friction for smooth operation, a heat-treated alloy steel shell for durability, a resin retainer polymer cage to reduce noise, and standard double seals..
$103.39
Pillow Block Bearing - Ball Bearing Twin Closed Inch - IPPW12G 3/4"

Twin Pillow Block Linear Ball Bearing IPPW12G 3/4" Closed

$122.03

Twin Pillow Block Linear Ball Bearing IPPW12G 3/4" Closed

$122.03
Twin Linear Ball Bearing Pillow Block, closed shell, with a 3/4" ID (inner diameter) bearing inside a housing made of aluminum alloy. Features a low coefficient of friction for smooth operation, a heat-treated alloy steel shell for durability, a resin retainer polymer cage to reduce noise, and standard double seals..
$122.03
Pillow Block Bearing - Ball Bearing Closed Inch - IPPSW10G 5/8"

Twin Pillow Block Linear Ball Bearing IPPSW10G 5/8" Closed - Self Aligning Precis..

$179.01

Twin Pillow Block Linear Ball Bearing IPPSW10G 5/8" Closed - Self Aligning Precision Plus

$179.01
Twin Linear Ball Bearing Pillow Blocks with a 5/8" ID (inner diameter) inside a housing made of aluminum alloy. It is self-aligning due to a crowned bearing shell inside the housing. The IPPS products all come with a grease zerk fitting, a small hole in the pillow block which is also..
$179.01
Pillow Block Bearing - Ball Bearing Closed Inch - IPPSN08G 1/2"

Pillow Block Linear Ball Bearing IPPSN08G 1/2" Open - Self Aligning Precision Plus

$98.83

Pillow Block Linear Ball Bearing IPPSN08G 1/2" Open - Self Aligning Precision Plus

$98.83
Open Pillow Block consisting of a Linear Ball Bearing with a 1/2" ID (inner diameter) crowned shell self-aligning linear ball bearing inside a housing made of aluminum alloy. It is self-aligning due to a crowned bearing shell inside the housing. The IPPS products all come with a grease zerk fitting,..
$98.83
Pillow Block Bearing - Ball Bearing Open Inch - IPPN12G 3/4"

Pillow Block Linear Ball Bearing IPPN12G 3/4" Open

$89.20

Pillow Block Linear Ball Bearing IPPN12G 3/4" Open

$89.20
Open Linear Ball Bearing Pillow Block with a 3/4" ID (inner diameter) featuring a crowned shell linear bearing for self-alignment in an aluminum alloy housing. Size interchangeable with industry standards and our Simplicity plain linear bearing series. Open shell for use with linear rail supported round shafts Temperature Range: -4/+176°F..
$89.20
Pillow Block Bearing - Ball Bearing Open Inch - IPPN08G 1/2"

Pillow Block Linear Ball Bearing IPPN08G 1/2" Open

$71.00

Pillow Block Linear Ball Bearing IPPN08G 1/2" Open

$71.00
Open Linear Ball Bearing Pillow Block with a 1/2" ID (inner diameter) bearing inside a housing made of aluminum alloy. Size interchangeable with industry standards and our Simplicity plain linear bearing series. Open shell for use with linear rail supported round shafts Temperature Range: -4/+176°F (-20/+80°C) Variant ID Sizes: Available..
$71.00
Pillow Block Bearing - Ball Bearing Closed Inch - IPP16G 1.00"

Pillow Block Linear Ball Bearing IPP16G 1.0" Closed

$103.08

Pillow Block Linear Ball Bearing IPP16G 1.0" Closed

$103.08
Linear Ball Bearing Pillow Block, closed, with a 1" ID (inner diameter), featuring a linear ball bearing inside an aluminum alloy housing, incorporating a heat-treated alloy steel shell for enhanced durability, a resin retainer polymer cage for reduced noise, and double seals at no extra cost for contaminant protection. Size-interchangeable..
$103.08
Pillow Block Bearing - Ball Bearing Closed ISO Metric - EPPM10G 10mm

Pillow Block Linear Ball Bearing EPPM10G 10mm Closed

$53.59

Pillow Block Linear Ball Bearing EPPM10G 10mm Closed

$53.59
Closed Pillow Block Bearing featuring a Linear Ball Bearing with a 10mm ID (inner diameter) inside a housing made of aluminum alloy.  Temperature Range: -4/+176°F (-20/+80°C) Variant ID Sizes: Available from 1/4" to 2” Inch Series,  8mm to 50mm Metric  Interchangeable: Size interchangeable with industry standards and our Simplicity plain..
$53.59
Pillow Block Bearing - Ball Bearing Closed ISO Metric - EPPM25G 25mm

Pillow Block Linear Ball Bearing EPPM25G 25mm Closed

$98.48

Pillow Block Linear Ball Bearing EPPM25G 25mm Closed

$98.48
Closed Pillow Block Bearing consisting of a Linear Ball Bearing with a 25mm ID (inner diameter) inside a housing made of aluminum alloy. Temperature Range: -4/+176°F (-20/+80°C) Variant ID Sizes: Available from 1/4" to 2” Inch Series,  8mm to 50mm Metric  Interchangeable: Size interchangeable with industry standards and our Simplicity..
$98.48
IPK08G Square Flanged Linear Ball Bearing

Linear Ball Bearing – Square Flanged IPK08G 1/2" ID

$21.85

Linear Ball Bearing – Square Flanged IPK08G 1/2" ID

$21.85
Linear ball bearing 1/2" ID square-flanged, end mount, standard size, featuring a heat-treated alloy steel shell for durability. The square flange provides secure four-bolt mounting and straightforward alignment with machine frames and mounting surfaces. A low coefficient of friction, recirculating hardened steel balls, and a molded polymer resin retainer support..
$21.85
KHP08 8mm Thin Wall Ball Bearing ISO Metric Closed Square Flange,

Thin Wall Linear Ball Bearing KHP08 8mm ISO Metric Closed

$11.69

Thin Wall Linear Ball Bearing KHP08 8mm ISO Metric Closed

$11.69
Thin-walled linear ball bearing with an 8mm ISO metric bore, designed for compact applications requiring minimal radial space. Closed shell protects internal ball races from contamination. Ideal for cantilevered loads not subject to the 2:1 plain bearing binding rule. Used in machinery, automation equipment, and precision instruments. Part Number KHP08..
$11.69
IPS16 1.00" Self Aligning Inch Ball Bearing Closed , Standard Width

Linear Ball Bearing IPS16 1.00" Self Aligning Closed

$52.52

Linear Ball Bearing IPS16 1.00" Self Aligning Closed

$52.52
Closed linear ball bearing with a 1" 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"..
$52.52
IPS12 3/4" Self Aligning Inch Ball Bearing Closed , Standard Width

Linear Ball Bearing IPS12 3/4" Self Aligning Closed

$32.68

Linear Ball Bearing IPS12 3/4" Self Aligning Closed

$32.68
Closed linear ball bearing with a 3/4" 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"..
$32.68
EPK50GW 50mm Ball Bearing ISO Metric Closed Square Flange, Polymer Cage Double Wide

Twin Linear Ball Bearing EPK50GW 50mm Square Flanged End Mount

$278.22

Twin Linear Ball Bearing EPK50GW 50mm Square Flanged End Mount

$278.22
Double-sized square-flanged linear ball bearing, 50mm ID, end mount, with a long heat-treated alloy steel shell for higher load and moment capacity. Equivalent to two standard-sized bearings mounted back to back, the square end flange provides secure four-bolt mounting at the end of the assembly. Recirculating hardened steel balls, a..
$278.22
EPF50G 50mm Ball Bearing ISO Metric Closed Round Flange, Polymer Cage Standard Width

Linear Ball Bearing - Round Flanged EPF50G 50mm

$158.43

Linear Ball Bearing - Round Flanged EPF50G 50mm

$158.43
Round-flanged linear ball bearing, 50mm ID ISO metric, standard-sized, end mount, with a heat-treated alloy steel shell for durability. The round flange allows flexible rotational positioning during installation and avoids corner interference in tight spaces. Recirculating hardened steel balls and a low coefficient of friction support smooth, high-speed travel, while..
$158.43
Linear Ball Bearing Center Flange JPFC40G 40mm JIS

Twin Linear Ball Bearing JPFC40G 40mm JIS Metric - Round Flanged Center Mount

$94.23

Twin Linear Ball Bearing JPFC40G 40mm JIS Metric - Round Flanged Center Mount

$94.23
Twin-sized, round-flanged linear ball bearing of JIS 40 mm ID, center mount, with a long heat-treated alloy steel shell for durability and standard double seals for added protection. The double design is equivalent to two standard linear ball bearings mounted back to back, while the center flange provides balanced mounting..
$94.23
Square Flanged Linear Ball Bearing

Twin Linear Ball Bearing EPKC40G 40mm Square Flanged Center Mount

$190.99

Twin Linear Ball Bearing EPKC40G 40mm Square Flanged Center Mount

$190.99
Double-sized square-flanged linear ball bearing, 40mm ID, center mount, with a long heat-treated alloy steel shell for higher load and moment capacity. The center flange provides balanced four-bolt mounting and improved resistance to moment loading, while the double-size design is equivalent to two standard bearings mounted back to back. Recirculating..
$190.99
EPK40GW 40mm Ball Bearing ISO Metric Closed Square Flange, Polymer Cage Double Wide

Twin Linear Ball Bearing EPK40GW 40mm Square Flange End Mount

$144.16

Twin Linear Ball Bearing EPK40GW 40mm Square Flange End Mount

$144.16
Double-sized square-flanged linear ball bearing, 40mm ID, end mount, with a long heat-treated alloy steel shell for higher load and moment capacity. Equivalent to two standard-sized bearings mounted back to back, the square end flange provides secure four-bolt mounting at the end of the assembly. Recirculating hardened steel balls, a..
$144.16
Linear Ball Bearing Flange EPFC40G 40mm

Twin Linear Ball Bearing EPFC40G 40mm Round Flanged Center Mount

$182.92

Twin Linear Ball Bearing EPFC40G 40mm Round Flanged Center Mount

$182.92
Double-sized round-flanged linear ball bearing, 40mm ID, center mount, with a long heat-treated alloy steel shell for higher load and moment capacity. Equivalent to two standard-sized bearings mounted back to back, the center flange provides balanced mounting, while the round shape allows flexible rotational positioning and avoids corner interference. Recirculating..
$182.92
IP32G 2.00" Linear Ball Bearing Inch Series Closed , Polymer Cage Standard Width

Linear Ball Bearing IP32G 2.00" Closed

$108.31

Linear Ball Bearing IP32G 2.00" Closed

$108.31
Linear ball bearing, closed, with a 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,..
$108.31
326 products

Linear Ball Bearings

326 products

Linear ball bearings are rolling-element linear bearings that use recirculating hardened steel balls instead of sliding elements to provide low-friction, straight-line motion along round shafts with only one degree of freedom. They are better suited than plain linear bearings for higher speeds, longer strokes, and overhanging cantilevered loads due to their lower coefficient of friction and because plain bearings may bind under the 2:1 rule, requiring plain bearing spacing to be at least twice the load overhang, a rule rolling-element bearings are not subject to.

PBC Linear linear ball bearings feature heat-treated alloy steel shells for durability, precision steel balls for smooth travel, molded polymer resin retainers for reduced noise, and standard double seals to help keep contaminants out. However, linear ball bearings typically require more maintenance than plain bearings, including periodic lubrication and greater care to keep debris, contamination, shock, and vibration away from the rolling elements.

Available in closed, open, adjustable, self-aligning, flanged, pillow block, and double-wide configurations, PBC Linear ball bearings are dimensionally interchangeable with industry standards and cover inch sizes from 1/4 in. to 2 in. ID and metric sizes from 8 mm to 50 mm ID. Static load capacities reach up to 3,500 lb. (15,900 N) and dynamic load capacities up to 1,300 lb. (6,000 N), with operating temperatures from -4°F to 176°F (-20°C to 80°C).

Standard Linear Ball Bearings

Linear Ball Bearings from PBC Linear provide unmatched performance in linear motion with compatibility for industry standards. These bearings feature durable, heat-treated alloy steel shells and resin retainers for quieter operation and reduced friction.

Feature Specification
Temperature Range -4°F to +176°F (-20°C to +80°C)
Material Heat-treated alloy steel shells
Designs Wide range including double wide and thin wall
Styles Closed Open Double Wide Thin Wall


Linear Ball Bearing Flange Mounts

Designed for compact and efficient installation, Linear Ball Bearing Flange Mounts excel in high-speed applications. These mounts offer outstanding load capacities and low friction for enhanced performance.

Feature Specification
Inner Diameter Range 8 mm to 50 mm
Static Load Capacity Up to 15,900 N
Dynamic Load Capacity Up to 6,080 N
Designs Double wide options available
Styles Round Square Round Center Mount Square Center Mount Double Wide


Linear Ball Bearing Pillow Blocks

Linear Ball Bearing Pillow Blocks are designed for versatile mechanical applications, featuring aluminum alloy housings and ball bearing inserts for stability and efficiency. These blocks accommodate high loads while minimizing friction.

Feature Specification
Static Load Capacity Up to 7,900 N (1,700 lb)
Dynamic Load Capacity Up to 3,800 N (850 lb)
Designs Open and closed configurations
Styles Closed Single Closed Twin Open Single Open Twin

Frequently Asked Questions

When should I use linear ball bearings?
Use linear ball bearings when you need smooth, high-speed linear motion with minimal friction and good performance under overhung or cantilevered loads.
What are the main practical use differences between plain linear bearings and linear ball bearings?
Linear ball bearings differ from plain linear bearings in three key ways: (1) they resist rotation and provide more controlled, single-axis motion; (2) they handle cantilevered loads better, avoiding the ~2:1 binding limitation common in plain bearings; and (3) they support higher speeds due to rolling contact instead of sliding friction.
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