Linear Motion Shafts
Smooth, hard, and wear resistant, linear motion shafts work with linear bearings to reduce friction in manual and automated systems, such as those found in packing, machine tool, and material handling operations. The smooth surface reduces friction and wear on the bearing—the lower the microinch value a shaft has, the smoother its finish and the less friction it will create. All are turned, ground, and polished to tight diameter and straightness tolerances.
Steel shafts are generally stronger than aluminum and stainless steel shafts but not as corrosion resistant. 1055 and 1060 carbon steel shafts balance high strength and good machinability, making them ideal for general purpose use. 1566 carbon steel shafts have a higher yield strength than 1055 and 1060 carbon steel shafts for supporting heavier loads. 52100 alloy steel shafts are good for high-load applications. They are, however, more difficult to machine than carbon steel shafts.
Stainless steel shafts are more corrosion resistant than steel shafts; however, they’re not as hard as steel shafts and can be more difficult to machine. 420 stainless steel and 440C stainless steel shafts have good corrosion resistance. Shafts with chamfered edges have their edges ground to reduce damage to bearings, housings, and other components during installation.
|System of Measurement||Inch Metric|
|Material||Steel Aluminum Stainless Steel|
|Mechanical Finish||Polished Precision Ground Turned|
|For Motion Type||Linear|
|Hardness Rating||Very Hard|
|Heat Treatment||Case Hardened|
|Length Tolerance (Text)||(-1.2-1.2MM ) (-1-1mm)(-0.8mm-0.8mm)(-0.5-0.5mm）|
|DFARS (Defense Acquisition Regulations Supplement)||DFARS Specialty Metals COTS-Exempt|
|Surface Smoothness||10microinch 0.2microns 12microinch 0.4microns|
|Yield Strength||less than 40,000psi 40,000 to 50,999psi|
|51,000 to 59,999psi 60,000 to 99,999psi|
|Surface Yield Strength||140,000 psi|
Diameter 30mm Length 300mm specification
Metric—52100 Alloy Steel
|Lg.||Lg. Tolerance,||Straightness||Surface||Edge Type||Hardness||Hardness||Heat Treatment||Yield|
|30 mm Dia. (Tolerance: -0.02 mm to -0.007 mm)|
|300||-0.5 to 0.5||0.002" per ft.||0.4 microns||Chamfered||Very Hard||Rockwell C60||Case Hardened||57,000|