TIMKEN 30304 bearings

Part Number 30304, Tapered Roller Bearings - TS (Tapered Single) Metric

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Technical specification for TIMKEN 30304

Timken 30304
Dimensions
Part Number	30304
Series	30304
Cone Part Number	X30304
Cup Part Number	Y30304
Design Unit	Metric
Bearing Weight	0.2 Kg 0.4 lb
Cage Material	Stamped Steel
d - Bore	20 mm 0.7874 in
D - Cup Outer Diameter	52 mm 2.0472 in
B - Cone Width	15.000 mm 0.5906 in
C - Cup Width	13.000 mm 0.5118 in
T - Bearing Width	16.250 mm 0.6398 in
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius	1.520 mm 0.060 in
r - Cup Backface "To Clear" Radius	1.52 mm 0.06 in
da - Cone Frontface Backing Diameter	24.5 mm 0.96 in
db - Cone Backface Backing Diameter	27 mm 1.06 in
Da - Cup Frontface Backing Diameter	48.01 mm 1.89 in
Db - Cup Backface Backing Diameter	45.47 mm 1.79 in
Ab - Cage-Cone Frontface Clearance	3.3 mm 0.13 in
Aa - Cage-Cone Backface Clearance	-1 mm -0.04 in
a - Effective Center Location	-4.8 mm -0.19 in
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)	9980 N 2240 lbf
C1 - Dynamic Radial Rating (1 million revolutions)	38500 N 8660 lbf
C0 - Static Radial Rating	34500 N 7760 lbf
Ca90?- Dynamic Thrust Rating (90 million revolutions)	5130 N 1150 lbf
Factors
K - Factor	1.95
e - ISO Factor	0.3
Y - ISO Factor	2
G1 - Heat Generation Factor (Roller-Raceway)	7.5
G2 - Heat Generation Factor (Rib-Roller End)	5.5
Cg - Geometry Factor	0.0458

Timken 30304, Tapered roller bearings, TS (Tapered Single), Metric, Dimensions: bore: 20 mm, Outer diameter: 52 mm, Bearing width: 16.250 mm.

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