TIMKEN 30203 bearings

Part Number 30203, Tapered Roller Bearings - TS (Tapered Single) Metric

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Technical specification for TIMKEN 30203

Timken 30203
Dimensions
Part Number	30203
Series	30203
Cone Part Number	X30203
Cup Part Number	Y30203
Design Unit	Metric
Bearing Weight	0.100 Kg 0.2 lb
Cage Material	Stamped Steel
d - Bore	17 mm 0.6693 in
D - Cup Outer Diameter	40 mm 1.5748 in
B - Cone Width	12.000 mm 0.4724 in
C - Cup Width	11.000 mm 0.4331 in
T - Bearing Width	13.250 mm 0.5217 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 mm 0.83 in
db - Cone Backface Backing Diameter	22 mm 0.87 in
Da - Cup Frontface Backing Diameter	37.59 mm 1.48 in
Db - Cup Backface Backing Diameter	35.05 mm 1.38 in
Ab - Cage-Cone Frontface Clearance	2 mm 0.08 in
Aa - Cage-Cone Backface Clearance	-0.3 mm -0.01 in
a - Effective Center Location	-3.6 mm -0.14 in
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)	5530 N 1240 lbf
C1 - Dynamic Radial Rating (1 million revolutions)	21300 N 4800 lbf
C0 - Static Radial Rating	19900 N 4460 lbf
Ca90?- Dynamic Thrust Rating (90 million revolutions)	3270 N 735 lbf
Factors
K - Factor	1.69
e - ISO Factor	0.35
Y - ISO Factor	1.74
G1 - Heat Generation Factor (Roller-Raceway)	4.2
G2 - Heat Generation Factor (Rib-Roller End)	6
Cg - Geometry Factor	0.0398

Timken 30203, Tapered roller bearings, TS (Tapered Single), Metric, Dimensions: bore: 17 mm, Outer diameter: 40 mm, Bearing width: 13.250 mm.

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