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1/2" THOMSON 2' LINEAR ROD W BALL BEARING PILLOW BLOCKS These are 2 Brand New Bars, each 23" inches long, of .500 inch diameter Thomson Linear Race Steel Hardened Shafting and a set of 2 Nice Thomson Super Pillow Blocks, No. SPB8. This rod is hardened to a 60/62 Rockwell Hardness and precision ground. 60 Case LinearRace shaft surface hardness provides resistance to deformation, whether it be from extreme point contact loading from bearing balls, line contact from rollers, or area contact from sleeve bearings. Hardness also provides resistance to wear, maintaining critical internal bearing fitup dimensions. 60 Case-hardened LinearRace shafting also provides a significant increase in bending and rotational fatigue resistance. This fact has been known in the automotive industry for years and is applied to the manufacturer of shafts and axles for cars and trucks. Unlike common shafting, Thomson 60 Case LinearRace shafting is manufactured to the highest quality standards. Their techniques are continuously upgraded with proprietary know-how gained from over 53 years of linear bearing design and manufacture. This assembly will make a very heavy-duty precision axis. I will fully guarantee this assembly. Thanks for looking! If you have any question on this item please call us at 1-800-826-3433 (9 - 5pm Eastern). |