Extended round flanged plain linear bearing with a 16mm ID comprising the precision-bore with a unique self-lubricating FrelonGold® liner for maintenance-free linear, rotational or oscillating motion in harsh conditions like extreme heat, dirt, and vibration. Round Flanged End Extended Size Housing - Closed Shell Precision ID running clearance (0.0005" per..
$80.17
Extended Plain Linear Bearing with an 8mm compensated ID consisting of a round flanged aluminum housing (end mount) with a self-lubricating FrelonGold® lining for maintenance-free linear, rotational or oscillating motion in harsh conditions like extreme heat, dirt, and vibration. Extended closed aluminum housing with self-lubricating FrelonGOLD® liner Round Flanged End ..
$76.61
Round Flanged (End Mount) Double Plain Linear Bearing with a 12mm ISO Metric ID (inner diameter) a self-lubricating bearing liner and a precision running clearance on the inner diameter of 0.0005” for those who prefer precision over speed. Self-Lubricating Bearing Liner: FrelonGOLD® is standard Optional liners include Frelon® W (FDA..
$68.70
Round Flanged (End Mount) Double Plain Linear Bearing with an 8mm ISO Metric ID (inner diameter) and a precision running clearance on the inner diameter of 0.0005” for those who prefer precision over speed. Round Flanged Aluminum Body Self-Lubricating ID Liner: FrelonGOLD® is standard; Optional liners include Frelon® W (FDA..
$76.61
Linear ball bearing pillow block, open shelled, with a 2" inner diameter (ID) self-aligning bearing inside an aluminum alloy housing with a lubrication port called a "grease zerk fitting" on the side. Interchangeable with industry standards, this bearing has a low coefficient of friction, a heat-treated alloy steel shell for..
$491.30
Double linear ball bearing pillow block, open shelled, with a 2" inner diameter (ID) self-aligning bearing inside an aluminum alloy housing with 2 lubrication ports called "grease zerk fittings" on the side. Interchangeable with industry standards, the bearing has a low coefficient of friction, a heat-treated alloy steel shell for..
$945.10
Linear ball bearing pillow block, closed, with a 2" inner diameter (ID) self-aligning bearing inside an aluminum alloy housing with a lubrication port called a "grease zerk fitting" on the side. Interchangeable with industry standards, this bearing has a low coefficient of friction, a heat-treated alloy steel shell for durability,..
$409.31
Self-aligning closed linear ball bearing 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..
$31.45
Self-aligning closed linear ball bearing with a 25mm 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..
$50.16
Self-aligning closed linear ball bearing with a 16mm 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..
$27.40
Self-aligning closed linear ball bearing with a 30mm 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..
$73.41
Self-aligning open linear ball bearing 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..
$31.60
Self-aligning closed linear ball bearing with a 40mm 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..
$100.02
Self-aligning open linear ball bearing with a 16mm 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..
$28.06
Self-aligning open linear ball bearing with a 40mm 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..
$100.35
Self-aligning open linear ball bearing with a 30mm 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..
$73.86
Self-aligning open linear ball bearing with a 50mm 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..
$168.29
Double-sized Round Flanged Linear Ball Bearing 8mm ID JIS Metric, center mount, with a long heat-treated alloy steel shell for durability and double seals for added protection. With a low coefficient of friction for speed and a resin retainer polymer cage for reduced noise, this enhanced sized linear ball bearing..
$20.50
Closed linear ball bearing with a 2" ID, self-aligning, featuring a heat-treated alloy steel shell and resin retainer polymer cage 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 in sizes from..
$172.18
Closed linear ball bearing with a 1.5" ID, self-aligning, featuring a heat-treated alloy steel shell and resin retainer polymer cage 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 in sizes from..
$103.81
Linear ball bearings are rolling-element linear bearings that use recirculating steel balls instead of sliding elements for low-friction motion along a straight-line axis with one degree of freedom. They are better suited than plain bearings for higher speeds, longer strokes, and overhanging cantilevered loads where the 2:1 binding rule can be a concern. PBC Linear linear ball bearings feature heat-treated alloy steel shells for durability, precision steel balls for smooth travel, polymer resin retainers for reduced noise, and standard double seals to help keep contaminants out. Available in closed, open, and adjustable configurations, they cover inch sizes from 1/4" to 2" ID and metric sizes from 8mm to 50mm ID. These bearings are dimensionally interchangeable with industry standards and are available as standalone cylindrical bearings, pillow blocks, flanged units, and double-sized (twin) versions for added load support. Typical load ratings reach up to 1700 lb. (7900 N) static and 850 lb. (3800 N) dynamic, with reliable operation across 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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