PBC Linear Shafting and Rails

Linear Shafts (Shafting) and Support Rails

Linear Shafts and Support Rails prevent linear bearing binding from shaft sag in high-load applications. Our shafts, rails, and assemblies come in various combinations of 1060 carbon steel (RC60 Hardness™), 440 stainless steel (RC50 Hardness™), and feather-light ceramic-coated aluminum. The shafts—solid or pre-drilled—feature an optimized finish for quick break-in with self-lubricating plain linear bearings, ensuring minimal maintenance and extended machinery lifespan, with straightness tolerances of 0.001"-0.002" per foot in standard or custom lengths. The assemblies, offered as fused shaft-rail units or separate components ready to bolt together, can be mounted vertically or horizontally for versatile, economical performance. Support blocks are also available.

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778 products
Solid Linear Shaft of Ceramic Coated Aluminum, 16mm diameter, 150mm length. This feather-weight yet strong shaft boasts RC70 hardness, superior corrosion resistance, non-magnetic properties, vibration resistance, and immunity to weld splatter, paints, and contaminants. It’s crafted exclusively for plain bearings like Simplicity® self-lubricating linear bearings, not for linear ball bearings..
$7.45
Linear Shaft of hardened carbon steel, 6mm diameter, 300mm length, made in the USA by PBC Linear® as Simplicity® 60 Plus steel. Featuring an optimized surface finish that enhances the performance of linear bearings such as self-lubricating plain bearings, ball bearings, roller bearing pillow blocks, and guide carriages. Solid, not..
$10.56
Linear Shaft of 440C Stainless Steel, 6mm diameter, 300mm length, made in the USA by PBC Linear®, featuring RC 50 Plus™ hardness and an optimized surface finish that enhances the performance of linear bearings such as self-lubricating plain bearings and ball bearings. Solid, not pre-drilled. Neither drilled nor tapped -..
$25.90
Linear Shaft of 440C Stainless Steel, 4mm diameter, 600mm length, made in the USA by PBC Linear®, featuring RC 50 Plus™ hardness and an optimized surface finish that enhances the performance of linear bearings such as self-lubricating plain bearings and ball bearings. Solid, not pre-drilled. Neither drilled nor tapped -..
$69.49
Linear Shaft of 440C Stainless Steel, 8mm diameter, 150mm length, made in the USA by PBC Linear®, featuring RC 50 Plus™ hardness and an optimized surface finish that enhances the performance of linear bearings such as self-lubricating plain bearings and ball bearings. Solid, not pre-drilled. Neither drilled nor tapped -..
$17.76
Linear Shaft of hardened carbon steel, 8mm diameter, 150mm length, made in the USA by PBC Linear® as Simplicity® 60 Plus steel. Featuring an optimized surface finish that enhances the performance of linear bearings such as self-lubricating plain bearings, ball bearings, roller bearing pillow blocks, and guide carriages. Solid, not..
$5.10
Linear shaft of 440C stainless steel with 3/8" diameter and 4" length. The solid, undrilled round shaft features RC 50 Plus™ hardness and an optimized surface finish for Simplicity® self-lubricating plain linear bearings and linear ball bearings. This shaft is not tapped, meaning it has no internally threaded hole at..
$9.03
Linear shaft of 1060 carbon steel with 3/8" diameter and 4" length, solid, round and undrilled, featuring RC 60 Plus™ case-hardened steel and Class L diameter tolerance for a controlled bearing fit. Made in the USA by PBC Linear®, this shaft is not tapped, which means it has no internally..
$3.76
Low Profile Steel Support Rail of 12" length, made for 1/2" diameter linear shafts sold separately, undrilled and crafted from AISI C-1018 carbon steel with high strength and ductility. Features a 40% lower profile than standard rails. The pre-drilled variant has a PD in the part number. Consult Configuration CAD..
$9.52
Linear shaft of 1060 carbon steel with 3/16" diameter and 12" length, solid, round and undrilled, featuring RC 60 Plus™ case-hardened steel and Class L diameter tolerance for a controlled bearing fit. Made in the USA by PBC Linear®, this shaft is not tapped, which means it has no internally..
$11.52
Linear Shaft of hardened carbon steel, 6mm diameter, 150mm length, made in the USA by PBC Linear® as Simplicity® 60 Plus steel. Featuring an optimized surface finish that enhances the performance of linear bearings such as self-lubricating plain bearings, ball bearings, roller bearing pillow blocks, and guide carriages. Solid, not..
$5.28
Linear Shaft of 440C Stainless Steel, 4mm diameter, 300mm length, made in the USA by PBC Linear®, featuring RC 50 Plus™ hardness and an optimized surface finish that enhances the performance of linear bearings such as self-lubricating plain bearings and ball bearings. Solid, not pre-drilled. Neither drilled nor tapped -..
$34.74
Linear Shaft of hardened carbon steel, 4mm diameter, 300mm length, made in the USA by PBC Linear® as Simplicity® 60 Plus. Featuring an optimized surface finish that enhances the performance of linear bearings such as self-lubricating plain bearings, ball bearings, roller bearing pillow blocks, and guide carriages. Solid, not pre-drilled...
$11.34
Linear shaft of 1060 carbon steel with 3/16" diameter and 6" length, solid, round and undrilled, featuring RC 60 Plus™ case-hardened steel and Class L diameter tolerance for a controlled bearing fit. Made in the USA by PBC Linear®, this shaft is not tapped, which means it has no internally..
$5.76
Solid Linear Shaft of Ceramic Coated Aluminum, 8mm diameter, 150mm length. This feather-weight yet strong shaft boasts RC70 hardness, superior corrosion resistance, non-magnetic properties, vibration resistance, and immunity to weld splatter, paints, and contaminants. It’s crafted exclusively for plain bearings like Simplicity® self-lubricating linear bearings, not for linear ball bearings..
$5.69
Linear Shaft of hardened carbon steel, 4mm diameter, 150mm length, made in the USA by PBC Linear® as Simplicity® 60 Plus steel. Featuring an optimized surface finish that enhances the performance of linear bearings such as self-lubricating plain bearings, ball bearings, roller bearing pillow blocks, and guide carriages. Solid, not..
$5.67
Linear shaft of 1060 carbon steel with 3/16" diameter and 3" length, solid, round and undrilled, featuring RC 60 Plus™ case-hardened steel and Class L diameter tolerance for a controlled bearing fit. Made in the USA by PBC Linear®, this shaft is not tapped, which means it has no internally..
$2.88
Solid Linear Shaft of Ceramic Coated Aluminum, 1/4" diameter, 3" length. This feather-weight yet strong shaft boasts RC70 hardness, superior corrosion resistance, non-magnetic properties, vibration resistance, and immunity to weld splatter, paints, and contaminants. It’s crafted exclusively for plain bearings like Simplicity® self-lubricating linear bearings, not for linear ball bearings..
$2.81
778 products

Linear Shafts (Shafting) and Support Rails

778 products
Linear Shafts and Support Rails prevent linear bearing binding from shaft sag in high-load applications. Our shafts, rails, and assemblies are sold in various combinations of 1060 carbon steel (RC60 Hardness™), 440 stainless steel (RC50 Hardness™), and feather-light ceramic-coated aluminum. The shafts—solid or pre-drilled—feature an optimized finish for quick break-in with self-lubricating plain linear bearings, ensuring minimal maintenance and extended machinery lifespan, with straightness tolerances of 0.001"-0.002" per foot in standard or custom lengths. The assemblies, offered as fused shaft-rail units or separate components ready to bolt together, can be mounted vertically or horizontally for versatile, economical performance. Support blocks are also available.
  • Material Options: 1060 carbon stee, 440 stainless steel or ceramic-coated aluminum
  • Solid or pre-drilled, 0.001"-0.002" per foot straightness, optimized for self-lubricating bearings
  • Fused or bolt-together units, mountable vertically or horizontally.