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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

94 Products
Linear Ball Bearing Pillow Blocks

Linear Ball Bearing Pillow Blocks

75 Products

Linear Ball Bearings

324 products
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324 products
IP04G 1/4" Linear Ball Bearing

Linear Ball Bearing IP04G 1/4" Closed

$12.78

Linear Ball Bearing IP04G 1/4" Closed

$12.78
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
IP12G 3/4" Linear Ball Bearing Inch Series Closed , Polymer Cage Standard Width

Linear Ball Bearing IP12G 3/4" Closed

$17.37

Linear Ball Bearing IP12G 3/4" Closed

$17.37
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
EP20G-OP 20mm Ball Bearing ISO Metric Open , Polymer Cage Standard Width

Linear Ball Bearing - EP20G-OP 20mm Open

$28.59

Linear Ball Bearing - EP20G-OP 20mm Open

$28.59
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
IP08G 1/2" Linear Ball Bearing Inch Series Closed , Polymer Cage Standard Width

Linear Ball Bearing IP08G 1/2" Closed

$14.42

Linear Ball Bearing IP08G 1/2" Closed

$14.42
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
IPS06 3/8" Self Aligning Inch Ball Bearing Closed , Standard Width

Linear Ball Bearing IPS06 3/8" Self Aligning Closed

$23.09

Linear Ball Bearing IPS06 3/8" Self Aligning Closed

$23.09
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
Pillow Block Bearing - Ball Bearing Open Inch - IPPN16G 1.00"

Pillow Block Linear Ball Bearing IPPN16G 1.0" Open

$129.84

Pillow Block Linear Ball Bearing IPPN16G 1.0" Open

$129.84
Open Linear Ball Bearing Pillow Block with a 1" 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. Temperature Range: -4/+176°F (-20/+80°C) Variant ID Sizes: Available from 1/4" to 2” Inch..
$129.84
IPS08 1/2" Self Aligning Inch Ball Bearing Closed , Standard Width

Linear Ball Bearing IPS08 1/2" Self Aligning Closed

$24.80

Linear Ball Bearing IPS08 1/2" Self Aligning Closed

$24.80
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
JPK12GW 12mm JIS Metric Ball Bearing Closed Square Flange, Polymer Cage Double Wide

Double Linear Ball Bearing - Square Flanged JPK12GW 12mm JIS Metric, End Mount

$31.25

Double Linear Ball Bearing - Square Flanged JPK12GW 12mm JIS Metric, End Mount

$31.25
Twin linear ball bearing with JIS 12mm ID, square flanged end-mount housing, heat-treated alloy steel shell, quiet resin retainer polymer cage, and double seals included as standard. Built to Japanese Industrial Standards, the recirculating ball design provides low-friction, high-speed linear motion and can outperform plain bearings in cantilevered applications where..
$31.25
Pillow Block Bearing - Ball Bearing Closed Inch - IPP24G 1.50"

Pillow Block Linear Ball Bearing IPP24G 1.50" Closed

$193.28

Pillow Block Linear Ball Bearing IPP24G 1.50" Closed

$193.28
Closed Linear Ball Bearing Pillow Block with a 1.5" 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. Temperature Range: -4/+176°F (-20/+80°C) Variant ID Sizes: Available from 1/4" to 2” Inch..
$193.28
IP20G 1.25" Linear Ball Bearing Inch Series Closed , Polymer Cage Standard Width

Linear Ball Bearing IP20G 1.25" Closed

$53.10

Linear Ball Bearing IP20G 1.25" Closed

$53.10
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
IP16G 1.00" Linear Ball Bearing Inch Series Closed , Polymer Cage Standard Width

Linear Ball Bearing IP16G 1.00" Closed

$31.78

Linear Ball Bearing IP16G 1.00" Closed

$31.78
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
Linear Ball Bearing EP25G 25mm Ball Bearing ISO Metric Closed , Polymer Cage

Linear Ball Bearing - EP25G 25mm Closed

$31.12

Linear Ball Bearing - EP25G 25mm Closed

$31.12
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
EPK16G 16mm Ball Bearing ISO Metric Closed Square Flange, Polymer Cage Standard Width

Linear Ball Bearing - Square Flange EPK16G 16mm

$25.87

Linear Ball Bearing - Square Flange EPK16G 16mm

$25.87
Square Flanged Linear Ball Bearing with a 16mm ID (inner diameter) and standard size with an end flange mount. Features a 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..
$25.87
JP20G 20mm JIS Metric Linear Ball Bearing - Polymer Cage

Linear Ball Bearing JP20G 20mm JIS Metric Closed

$21.30

Linear Ball Bearing JP20G 20mm JIS Metric Closed

$21.30
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
IP06G 3/8" Linear Ball Bearing Inch Series Closed , Polymer Cage Standard Width

Linear Ball Bearing IP06G 3/8" Closed

$13.84

Linear Ball Bearing IP06G 3/8" Closed

$13.84
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
KHP20 20mm Thin Wall Ball Bearing

Thin Wall Linear Ball Bearing KHP20 20mm ISO Metric Closed

$20.77

Thin Wall Linear Ball Bearing KHP20 20mm ISO Metric Closed

$20.77
Thin walled compact linear ball bearing of 20mm ID (inner diameter). The KHP line is great for space sensitive applications. Closed Inner Diameter (ID): 20mm Outer Diameter (OD): 28mm Max Dynamic Load Rating: 950 N Product Line has a range of ISO Metric 6mm to 50mm IDs We recommend certified..
$20.77
Pillow Block Bearing - Ball Bearing Twin Open Inch - IPPWN16G 1.00"

Twin Ball Bearing Pillow Block IPPWN16G 1.0" Open

$202.29

Twin Ball Bearing Pillow Block IPPWN16G 1.0" Open

$202.29
Twin Linear Ball Bearing Pillow Block, open shelled, with a 1" 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..
$202.29
Pillow Block Bearing - Ball Bearing Closed Inch - IPPSWN16G 1.00"

Twin Pillow Block Linear Ball Bearing IPPSWN16G 1.00" Open - Precision Plus Self-..

$307.29

Twin Pillow Block Linear Ball Bearing IPPSWN16G 1.00" Open - Precision Plus Self-Aligning

$307.29
Twin pillow block linear ball bearing, open shelled, with a 1" ID (inner diameter) crown shelled bearing inside an aluminum alloy housing. Part of the Precision Plus self-aligning series, the IPPS twin bearings feature two grease zerk fittings, known as lubrication ports, located in the pillow block. Open shelled for..
$307.29
Pillow Block Bearing - Ball Bearing Closed Inch - IPPSN16G 1.00"

Pillow Block Linear Ball Bearing IPPSN16G 1.0" Open - Self Aligning Precision Plus

$166.56

Pillow Block Linear Ball Bearing IPPSN16G 1.0" Open - Self Aligning Precision Plus

$166.56
Open Pillow Block Linear Ball Bearing with a 1" ID (inner diameter) crowned shell self-aligning bearing inside a housing made of aluminum alloy. The IPPS products all come with a grease zerk fitting, a small hole in the pillow block which is also called a lubrication port.  Temperature Range: -4/+176°F..
$166.56
DFPMR25C 25mm Double Linear Flange Bearing ISO Metric Closed Plain Linear Bearing Spherical 'Self-aligning' I.D. in the housing, Housing With Bearing Included, Compensated running clearance on the I.D.

Double Plain Linear Bearing DFPMR25C 25mm Round Flange End-Mount, Compensated

$115.56

Double Plain Linear Bearing DFPMR25C 25mm Round Flange End-Mount, Compensated

$115.56
Double plain linear bearing, round-end-flange w/ a 25mm compensated ID. This closed-shell bearing features an extended aluminum housing and a Simplicity® self-lubricating FrelonGOLD® liner bonded directly to the bore for oil-free, maintenance-free linear motion, with rotational or oscillating shaft motion possible in harsh environments such as extreme temperatures, dirt, contamination,..
$115.56
324 products

Linear Ball Bearings

324 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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