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SPM-Machined Body Series-Heavy Duty Type
TYPE: SPM 12 / SPM 15 / SPM 22 / SPM 25 / SPM 30 / SPM 45 / SPM 60 / SPM 76 / SPM 90
A |
All the main rolling ball and small bearing balls are made of carbon steel
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B |
All the main rolling ball and small bearing balls are made of chrome steel
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C |
All the main rolling ball and small bearing balls are made of AISI420C
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D |
The main rolling ball is made of nylon and small bearing balls are made of AISI420C
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SS |
All the main rolling ball, small bearing balls and the outer body are made of AISI420C
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