S71910 CB/HCP4A SKF
Kích thước và Thông số kỹ thuật của Vòng bi cầu tiếp xúc có độ chính xác cao S71910 CB/HCP4A SKF:
d – 120 mm
D – 180 mm
B – 28 mm
d1 – 143.2 mm
d2 – 140.8 mm
D2 – 161.9 mm
r1,2 – min. – 2 mm
r3,4 – min. – 1 mm
a – 34.2 mm
da – min. – 129 mm
db – min. – 129 mm
Da – max. – 171 mm
Db – max. – 175.4 mm
ra – max. – 2 mm
rb – max. – 1 mm
dn – 144.7 mm
Basic dynamic load rating – C – 37.7 kN
Basic static load rating – C0 – 39 kN
Fatigue load limit – Pu – 1.3 kN
Limiting speed for grease lubrication – 9500 r/min
Limiting speed for oil lubrication – 14000 mm/min
Ball – Dw – 11.112 mm
Ball – z – 33
Gref – 23.69 cm3
Calculation factor – f0 – 9.8
Preload class A – GA – 130 N
Preload class B – GB – 260 N
Preload class C – GC – 780 N
Calculation factor – f – 1.08
Calculation factor – f1 – 1
Calculation factor – f2A – 1
Calculation factor – f2B – 1.02
Calculation factor – f2C – 1.05
Calculation factor – fHC – 1
Preload class A – 75 N/micron
Preload class B – 98 N/micron
Preload class C – 156 N/micron
Mass bearing – 2.35 kg
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