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Single Row Tapered Roller Bearings (Inch series)
K-28985/K-28920
Dimensions and Parameters
Designations K-28985/K-28920
Series 28900
Boundary dimensions（mm）
d 60.325,2.3750
D 101.6
T 25.4
d1 81.4
B 25.4
C 19.845
r1.2 min 3.5
r3.4 min 3.3
a 22
Load ratings(KN)
Dynmic Cr 85.8
stat Cor 125
Fatigue load
pu 14
Speed ratings[rpm]
油润滑 3600
grease 4800
Mass(kg) 0.81
Abutment and fillet dimensions（mm）
da max 70
db min 73
Da min 88
Da max 89.5
Db min 96
Cb min 5
Ca min 5.5
ra max 3
rb max 3
Calculation factors
e 0.43
Y 1.4
Y0 0.9
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Phone： +86-574-86597612
Fax： +86-574-86597652
E-mail： master@dhk-intl.com
Address： Building 31, Chuang E Huigu, No. 777,West Zhongguan Road, Zhenhai Economic Development Zone, Ningbo, Zhejiang, China
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Phone
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Email
ken@dhk-intl.com
Address
No. 1238, Zhongguan Road, Zone B, Zhenhai Economic Development Zone, Ningbo City, Zhejiang Province 315200
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