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Tapered Roller Bearings/single-row tapered roller bearing

Single row tapered roller bearing (metric series) inner diameter 15-420mm_HR30311J

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External dimensions（mm)

d	55
D	120
T	31.5
B	29
C	25
Inner ring γ(minimum)	2.5
Outer Ring γ(minimum)	2

Rated load(N)

C_r	150000
C_or	171000

Rated load{kgf}

C_r	15200
C_or	17500

Rated speed min^-1

grease	3200
oil	4300

Bearing code

HR30311J

ISO355
size Series
(refer to)

2FB

Installation size(mm)

d_a（minimum）	70
d_b(maximum）	71
d_a(maximum）	110
d_a（minimum）	104
D_b(minimum)	111
S_a(minimum）	4
S_b(minimum）	6.5
Inner ring γ_a(maximum）	2
Outer Ring γ_a（maximum）	2

Location of
action point
(mm)

24.6

constant

0.35

axial load
coefficient

Y₁	1.7
Y₀	0.96

weight(kg)

(refer to)

1.63

describe

Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways

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Single row tapered roller bearing (metric series) inner diameter 15-420mm

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Quickly find the product you need

Tapered Roller Bearings/single-row tapered roller bearing

Single row tapered roller bearing (metric series) inner diameter 15-420mm_HR30311J

External dimensions（mm)

Rated load(N)

Rated load{kgf}

Rated speed min-1

Bearing code

ISO355size Series(refer to)

Installation size(mm)

Location of action point(mm)

constant

axial loadcoefficient

weight(kg)

describe

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Rated speed min^-1

ISO355
size Series
(refer to)

Location of
action point
(mm)

axial load
coefficient