TIMKEN 30303 bearings

Part Number 30303, Tapered Roller Bearings - TS (Tapered Single) Metric

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Technical specification for TIMKEN 30303

Timken 30303
Dimensions
Part Number	30303
Series	30303
Cone Part Number	X30303
Cup Part Number	Y30303
Design Unit	Metric
Bearing Weight	0.100 Kg 0.3 lb
Cage Material	Stamped Steel
d - Bore	17 mm 0.6693 in
D - Cup Outer Diameter	47 mm 1.8504 in
B - Cone Width	14.000 mm 0.5512 in
C - Cup Width	12.000 mm 0.4724 in
T - Bearing Width	15.250 mm 0.6004 in
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius	1.020 mm 0.04 in
r - Cup Backface "To Clear" Radius	1.02 mm 0.04 in
da - Cone Frontface Backing Diameter	21.5 mm 0.85 in
db - Cone Backface Backing Diameter	22.5 mm 0.89 in
Da - Cup Frontface Backing Diameter	43.43 mm 1.71 in
Db - Cup Backface Backing Diameter	41.40 mm 1.63 in
Ab - Cage-Cone Frontface Clearance	2.8 mm 0.11 in
Aa - Cage-Cone Backface Clearance	-0.8 mm -0.03 in
a - Effective Center Location	-4.8 mm -0.19 in
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)	8480 N 1910 lbf
C1 - Dynamic Radial Rating (1 million revolutions)	32700 N 7360 lbf
C0 - Static Radial Rating	28400 N 6390 lbf
Ca90?- Dynamic Thrust Rating (90 million revolutions)	4140 N 931 lbf
Factors
K - Factor	2.05
e - ISO Factor	0.29
Y - ISO Factor	2.11
G1 - Heat Generation Factor (Roller-Raceway)	5.8
G2 - Heat Generation Factor (Rib-Roller End)	5
Cg - Geometry Factor	0.0412

Timken 30303, Tapered roller bearings, TS (Tapered Single), Metric, Dimensions: bore: 17 mm, Outer diameter: 47 mm, Bearing width: 15.250 mm.

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