TIMKEN 30311 bearings

Part Number 30311, Tapered Roller Bearings - TS (Tapered Single) Metric

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Technical specification for TIMKEN 30311

Timken 30311
Dimensions
Part Number	30311
Series	30311M
Cone Part Number	X30311M
Cup Part Number	Y30311M
Design Unit	Metric
Bearing Weight	1.6 Kg 3.6 lb
Cage Material	Stamped Steel
d - Bore	55 mm 2.1654 in
D - Cup Outer Diameter	120 mm 4.7244 in
B - Cone Width	29.000 mm 1.1417 in
C - Cup Width	25.000 mm 0.9843 in
T - Bearing Width	31.500 mm 1.2402 in
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius	2.54 mm 0.1 in
r - Cup Backface "To Clear" Radius	2.03 mm 0.08 in
da - Cone Frontface Backing Diameter	67 mm 2.64 in
db - Cone Backface Backing Diameter	71 mm 2.8 in
Da - Cup Frontface Backing Diameter	114.00 mm 4.49 in
Db - Cup Backface Backing Diameter	107.95 mm 4.25 in
Ab - Cage-Cone Frontface Clearance	3.8 mm 0.15 in
Aa - Cage-Cone Backface Clearance	2 mm 0.08 in
a - Effective Center Location	-6.6 mm -0.26 in
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)	45100 N 10100 lbf
C1 - Dynamic Radial Rating (1 million revolutions)	174000 N 39100 lbf
C0 - Static Radial Rating	190000 N 42700 lbf
Ca90?- Dynamic Thrust Rating (90 million revolutions)	26600 N 5990 lbf
Factors
K - Factor	1.69
e - ISO Factor	0.35
Y - ISO Factor	1.74
G1 - Heat Generation Factor (Roller-Raceway)	62.8
G2 - Heat Generation Factor (Rib-Roller End)	24
Cg - Geometry Factor	0.0628

Timken 30311, Tapered roller bearings, TS (Tapered Single), Metric, Dimensions: bore: 55 mm, Outer diameter: 120 mm, Bearing width: 31.500 mm.

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