Stainless steel deep trench ball bearings d 1.5-7mm
Product Parameter
  • Basic size of mm
    d 2
    D 6
    B 3
  • The basic rated load is kN
    trends C 0.238
    static state Co 0.075
  • Fatigue load limit Pu 0.0034
  • Rated rotation speed is r/min
    Refer to the speed 180000
    limit speed 90000
  • Mass kg 0.00035
  • model W639/2-2Z
  • Dimensions are mm
    d 2
    d1 ~ 3
    D1 ~ 5.4
    r1,2 the min 0.15
  • Shoulder gear and chamfer size mm
    da the min 2.8
    Da the max 5.2
    ra the max 0.1
  • Calculation coefficient
    kr 0.015
    fo 10