Linear Shaft of 440C Stainless Steel, 20mm 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 -..
$51.83
Linear shaft of 440C stainless steel with 3/4" diameter and 12" 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..
$48.35
Linear shaft of 1060 carbon steel with 3/4" 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..
$19.69
Linear shaft of 440C stainless steel with 1/2" diameter and 24" 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..
$66.24
Linear Shaft of hardened carbon steel, 12mm diameter, 600mm 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..
$21.13
Solid Linear Shaft of Ceramic Coated Aluminum, 5/8" diameter, 36" 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..
$45.40
Solid Linear Shaft of Ceramic Coated Aluminum, 25mm diameter, 300mm 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..
$20.07
Linear Shaft of 440 Stainless Steel, 8mm 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 -..
$71.01
Linear Shaft of hardened carbon steel, 8mm diameter, 600mm 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..
$20.38
Linear Shaft of hardened carbon steel, 16mm 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..
$7.00
Linear Shaft of hardened carbon steel, 10mm 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 1060 carbon steel with 3/8" 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..
$11.29
Solid Linear Shaft of Ceramic Coated Aluminum, 16mm diameter, 300mm 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..
$14.90
Linear shaft of 1060 carbon steel with 1/2" 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..
$6.36
Linear Shaft of 440C Stainless Steel, 6mm 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 -..
$51.80
Round linear shaft of 440C stainless steel, 8mm 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..
$35.51
Solid Linear Shaft of Ceramic Coated Aluminum, 12mm diameter, 300mm 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..
$11.93
Solid Linear Shaft of Ceramic Coated Aluminum, 8mm diameter, 600mm 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..
$22.74
Linear Shaft of hardened carbon steel, 4mm diameter, 600mm 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..
$22.67
Solid Linear Shaft of Ceramic Coated Aluminum, 10mm diameter, 300mm 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..
$12.08
Linear shafts are straight, cylindrical machine elements that provide a round running surface for plain linear bearings, linear ball bearings, and roller bearings. PBC Linear® offers USA-made linear shafts in 1060 carbon steel, stainless steel, and lightweight ceramic-coated aluminum. Carbon steel provides high hardness and wear resistance for general industrial motion; stainless steel adds corrosion resistance for washdown, food, drug, and other corrosion-sensitive equipment; and ceramic-coated aluminum reduces moving weight while maintaining a durable bearing surface. Solid shafts are undrilled along their length, while pre-drilled shafts include mounting holes for attachment to supports or machine structures. Inch and metric diameter options are available in standard lengths or cut to length. The optimized surface finish promotes faster break-in and improved liner transfer with self-lubricating plain linear bearings, helping extend service life and reduce maintenance. Hardened steel versions also provide the running-surface durability required for linear ball bearings and roller bearings. Shaft straightness is maintained within 0.001"–0.002" per foot cumulative, depending on shaft size and configuration.
- Made in the USA linear shafts for plain linear bearings, linear ball bearings, and roller bearings
- Available in 1060 carbon steel, stainless steel, and ceramic-coated aluminum
- Carbon steel provides high hardness and wear resistance
- Stainless steel supports washdown, food, drug, and corrosion-sensitive equipment
- Ceramic-coated aluminum reduces weight while providing a durable bearing surface
- Choose solid undrilled or pre-drilled linear shafts
- Available in inch and metric diameters
- Standard lengths and cut-to-length options available
- Optimized finish supports faster plain-bearing break-in and liner transfer
- Hardened steel shafts are compatible with linear ball bearings and roller bearings
- Cumulative straightness: 0.001"–0.002" per foot
- Custom machining and end configurations available
Frequently Asked Questions
What is a linear shaft?
A linear shaft is a straight, cylindrical machine element that provides a round running surface for plain linear bearings, linear ball bearings, or roller bearings.
What is the difference between a solid and pre-drilled linear shaft?
A solid linear shaft has no mounting holes along its length. A pre-drilled linear shaft includes holes for attachment to shaft supports, rails, or machine structures.
What does tapping mean on a linear shaft?
Tapping creates internal screw threads inside a drilled hole at one or both ends of the shaft so that a screw or bolt can be threaded into it. Tapping is an end-machining option, not a pattern of mounting holes along the shaft length.
What is an untapped shaft end?
An untapped shaft end may contain a drilled hole, but the hole has smooth internal walls with no screw threads. Tapped and untapped holes refer to end machining rather than mounting holes along the shaft length.
What is a threaded diameter?
A threaded diameter is a narrower section machined at one or both ends of a shaft, with spiral external threads cut around its outside surface. A nut or another internally threaded component can be screwed onto it.
What is a shaft chamfer?
A chamfer is an angled cut that removes the sharp edge from the end of a linear shaft. It can make assembly easier and help protect bearings during installation.
What does RC mean for linear shafts?
RC means Rockwell C, a hardness scale used for hardened steel. A rating such as RC 50+ indicates a hard, wear-resistant running surface.
What does RMS mean for shaft surface finish?
RMS means root mean square. It measures microscopic surface roughness, usually in microinches. A lower RMS number indicates a smoother shaft surface.
Why does linear shaft surface finish matter?
The surface finish affects bearing travel, friction, break-in, liner transfer, wear, and service life. An optimized finish supports smooth operation with plain linear bearings and linear ball bearings.
What is hole spacing on a pre-drilled linear shaft?
Hole spacing is the center-to-center distance between adjacent mounting holes. The distance from the shaft end to the center of the first hole also matters because it determines where the mounting pattern begins.
What is hole-spacing tolerance?
Hole-spacing tolerance is the permitted variation between the specified and finished locations of the mounting holes.
What is linear shaft length tolerance?
Length tolerance is the permitted difference between the ordered shaft length and the finished shaft length. The applicable tolerance can vary by shaft diameter, material, and configuration.
What does shaft straightness mean?
Straightness describes how much a shaft may deviate from a perfectly straight line over a specified distance. PBC Linear shafts are typically held within 0.001 inch to 0.002 inch per foot cumulative, depending on size and configuration.
What linear shaft materials are available?
Common options include 1060 carbon steel, 420 or 440 stainless steel, 300 Series stainless steel by request, and ceramic-coated aluminum.
Which linear shafts work with plain linear bearings?
Carbon steel, stainless steel, and ceramic-coated aluminum shafts can be selected for plain linear bearings. The correct material and surface finish depend on the bearing liner, load, environment, and corrosion requirements.
Which linear shafts work with linear ball bearings?
Hardened carbon steel and hardened stainless steel shafts provide the durable running surface generally required for linear ball bearings and roller bearings.
What is a cut-to-length linear shaft?
A cut-to-length shaft is supplied at a customer-specified length rather than only in a standard full length.
Can linear shafts be joined for longer travel?
Yes. Joinable shaft ends and suitable support structures can be used to create longer linear travel lengths.
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