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  • Bearing material
      RINGS & BALLS vacuum degassed, high carbon chromium bearing steel GCr15 is the standard material for precision bearing rings and balls. The material has uniform specification as AISL 52100(America)DIN100 Cr6(Germany), JISSUJ2(Japan)


    Steel No.

    Chemical composition %

    C

    Si

    Min

    P

    S

    Cr

    Mo

    Cu

    Ni

    GCr 15

    0.95-1.05

    0.15-0.35

    0.25-0.45

    s0.025

    s0.025

    1.40-1.65

    -

    s0.25

    s0.30

    STAINLESS STEEL

    Specification

    Trademark

    Chemical composition (%)

    C

    Si

    Mn

    P

    S

    Cr

    Mo

    GB 3086

    9Cr18

    0.90-1.00

    Below 0.80

    Below 0.80

    Below 0.35

    Below 0.30

    17.00-19.00


    JIS G 4303

    SUW440C

    0.95-1.20

    Below 1.00

    Below 1.00

    Below 0.40

    Below 0.30

    16.00-18.00

    Below 0.75

    RETAINERS-LB standard bearing retainers are made from cold rolled carbon steel however, in cases of corrosive environment, misalignment,or high speed operation, stainless steel, or phenolic resins will be used upon request.



    1
    CROWN RETAINER The standard metal crown retainer is very light weight, with specially coined ball pockets to reduce torque and provide smooth running characteristics. Material used is 400 series stainless steel.

    冠形

    冠形保持架


    2
    RIBBON RETAINER The closed pocket design of the ribbon retainer is the most common type. The material used is 300 series stainless steel. For low torque applications, a loose clinched ribbon retainer may be available.

    浪形
    浪形保持架

     


    3PHENOLICRETAINER Plastic crown retainers have the highest speed ratings of any standard retainer type, but have limited availability.

       

    冠形
    冠形保持架