Linear Ball Bearing Long IP-W (Inch)

Double Linear Ball Bearings

Twin-sized linear ball bearings are extended-length linear bearings that use recirculating balls to provide smooth, low-friction travel on round linear shafts. The twin-sized format delivers the support of two standard-sized bearings mounted back to back, creating a longer, more durable bearing option with added stability for applications with higher loads, longer moments, or greater support requirements. Each bearing features a steel outer cylinder, ball retainer, recirculating balls, and two double seals, with double seals included standard at no additional cost. Available in inch, metric, and JIS sizing options, these bearings are fully interchangeable with industry-standard linear ball bearings and the Simplicity® series. ID sizes range from 0.25 in to 2 in and 8 mm to 50 mm. Flanged ball bearing variants are also available in end-mounted and center-mounted configurations.

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Double Linear Ball Bearings

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22 products
Double linear ball bearing, closed, 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..
$118.02
Double linear ball bearing, closed, with a 12mm 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..
$33.28
Double linear ball bearing, closed, 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..
$39.13
Double Linear Ball Bearing, closed, with a 1" inner diameter (ID) with variants available in sizes from 1/4" to 2”. Interchangeable with industry standards and our Simplicity series, this bearing has a low coefficient of friction, a heat-treated alloy steel shell for durability, and a resin retainer polymer cage to..
$68.08
Double Linear Ball Bearing, closed, with a 5/8" inner diameter (ID) with variants available in sizes from 1/4" to 2”. Interchangeable with industry standards and our Simplicity series, this bearing has a low coefficient of friction, a heat-treated alloy steel shell for durability, and a resin retainer to reduce noise. ..
$34.18
Double Linear Ball Bearing, closed, with a 1/2" inner diameter (ID) with variants available in sizes from 1/4" to 2”. Interchangeable with industry standards and our Simplicity series, this bearing has a low coefficient of friction, a heat-treated alloy steel shell for durability, and a resin retainer to reduce noise. ..
$32.67
Double Linear Ball Bearing, closed, with a 3/4" inner diameter (ID) with variants available in sizes from 1/4" to 2”. Interchangeable with industry standards and our Simplicity series, this bearing has a low coefficient of friction, a heat-treated alloy steel shell for durability, and a resin retainer polymer cage to..
$38.15
Double linear ball bearing, closed, 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..
$236.45
Double linear ball bearing, closed, 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..
$136.94
Double linear ball bearing, closed, 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..
$48.14
Double linear ball bearing, closed, 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..
$70.00
Double Linear Ball Bearing, closed, with a 1.25" inner diameter (ID). Interchangeable with industry standards and our Simplicity series, 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.  Double size equal to two standard bearings..
$114.27
Double Linear Ball Bearing, closed, with a 1.5" inner diameter (ID) with variants available in sizes from 1/4" to 2”. Interchangeable with industry standards and our Simplicity series, this bearing has a low coefficient of friction, a heat-treated alloy steel shell for durability, and a resin retainer to reduce noise. ..
$136.58
Double Linear Ball Bearing, closed, with a 2" inner diameter (ID) with variants available in sizes from 1/4" to 2”. Interchangeable with industry standards and our Simplicity series, this bearing has a low coefficient of friction, a heat-treated alloy steel shell for durability, and a resin retainer to reduce noise. ..
$233.62
Linear ball bearing, double-sized and closed, with a 50mm ID JIS Metric, featuring a double wide heat-treated alloy steel shell for greater durability and higher load capacity under cantilevered conditions. Double seals add protection, a low coefficient of friction enables higher speeds, and a resin retainer polymer cage reduces noise...
$240.93
Linear ball bearing, double-sized and closed, with a 20mm ID JIS Metric, featuring a double wide heat-treated alloy steel shell for greater durability and higher load capacity under cantilevered conditions. Double seals add protection, a low coefficient of friction enables higher speeds, and a resin retainer polymer cage reduces noise...
$48.12
Linear ball bearing, double-sized and closed, with a 30mm ID JIS Metric, featuring a double wide heat-treated alloy steel shell for greater durability and higher load capacity under cantilevered conditions. Double seals add protection, a low coefficient of friction enables higher speeds, and a resin retainer polymer cage reduces noise...
$117.18
Linear ball bearing, double-sized and closed, with a 40mm ID JIS Metric, featuring a double wide heat-treated alloy steel shell for greater durability and higher load capacity under cantilevered conditions. Double seals add protection, a low coefficient of friction enables higher speeds, and a resin retainer polymer cage reduces noise...
$136.42
Linear ball bearing, double-sized and closed, with a 25mm ID JIS Metric, featuring a double wide heat-treated alloy steel shell for greater durability and higher load capacity under cantilevered conditions. Double seals add protection, a low coefficient of friction enables higher speeds, and a resin retainer polymer cage reduces noise...
$69.96
Linear ball bearing, double-sized and closed, with an 8mm ID JIS Metric, featuring a double wide heat-treated alloy steel shell for greater durability and higher load capacity under cantilevered conditions. Double seals add protection, a low coefficient of friction enables higher speeds, and a resin retainer polymer cage reduces noise...
$30.43
22 products

Double Linear Ball Bearings

22 products

Twin-sized linear ball bearings are extended-length linear bearings that use recirculating balls to provide smooth, low-friction travel on round linear shafts. The twin-sized format delivers the support of two standard-sized bearings mounted back to back, creating a longer, more durable bearing option with added stability for applications with higher loads, longer moments, or greater support requirements. Each bearing features a steel outer cylinder, ball retainer, recirculating balls, and two double seals, with double seals included standard at no additional cost. Available in inch, metric, and JIS sizing options, these bearings are fully interchangeable with industry-standard linear ball bearings and the Simplicity® series. ID sizes range from 0.25 in to 2 in and 8 mm to 50 mm. Flanged ball bearing variants are also available in end-mounted and center-mounted configurations.


  • Double size is the equivalent of two standard-sized bearings mounted back to back
  • Flanged ball bearings available with center and end mounts
  • Static load capacities up to 3,500 lb (15,900 N)
  • Dynamic load capacities up to 1,300 lb (6,000 N)
  • Static moment capacities up to 290 ft-lb (399 Nm)