TIMKEN 30312 bearings

Part Number 30312, Tapered Roller Bearings - TS (Tapered Single) Metric

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Technical specification for TIMKEN 30312

Timken 30312
Dimensions
Part Number	30312
Series	30312M
Cone Part Number	X30312M
Cup Part Number	Y30312M
Design Unit	Metric
Bearing Weight	2.00 Kg 4.30 lb
Cage Material	Stamped Steel
d - Bore	60 mm 2.3622 in
D - Cup Outer Diameter	130 mm 5.1181 in
B - Cone Width	31.000 mm 1.2205 in
C - Cup Width	26.000 mm 1.0236 in
T - Bearing Width	33.500 mm 1.3189 in
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius	3.05 mm 0.12 in
r - Cup Backface "To Clear" Radius	2.54 mm 0.1 in
da - Cone Frontface Backing Diameter	69 mm 2.72 in
db - Cone Backface Backing Diameter	74 mm 2.91 in
Da - Cup Frontface Backing Diameter	121.90 mm 4.80 in
Db - Cup Backface Backing Diameter	116.08 mm 4.57 in
Ab - Cage-Cone Frontface Clearance	4.8 mm 0.19 in
Aa - Cage-Cone Backface Clearance	1.8 mm 0.07 in
a - Effective Center Location	-7.1 mm -0.28 in
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)	56500 N 12700 lbf
C1 - Dynamic Radial Rating (1 million revolutions)	218000 N 49000 lbf
C0 - Static Radial Rating	221000 N 49800 lbf
Ca90?- Dynamic Thrust Rating (90 million revolutions)	33400 N 7510 lbf
Factors
K - Factor	1.69
e - ISO Factor	0.35
Y - ISO Factor	1.74
G1 - Heat Generation Factor (Roller-Raceway)	75.8
G2 - Heat Generation Factor (Rib-Roller End)	22.2
Cg - Geometry Factor	0.0668

Timken 30312, Tapered roller bearings, TS (Tapered Single), Metric, Dimensions: bore: 60 mm, Outer diameter: 130 mm, Bearing width: 33.500 mm.

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