d 10-30mm
Product Parameter
  • Basic size of mm
    d 20
    D 52
    B 15
  • The basic rated load is kN
    trends C 19
    static state Co 10.4
  • Fatigue load limit Pu 0.44
  • Rated rotation speed is r/min
    Refer to the speed 16000
    limit speed 16000
  • Mass kg 0.15
  • Model number 1)
    General distribution bearings 7304BECBY
    Basic design bearings 7304BEY
  • Dimensions are mm
    d 20
    d1 ~ 33.3
    d2 ~ 26.8
    D1 ~ 40.4
    r1,2 the min 1.1
    r3,4 the min 0.6
    a 22.8
  • Shoulder gear and chamfer size mm
    da the min 27
    Da the max 45
    Db the max 47.8
    ra the max 1
    rb the max 0.6