TIMKEN 31312 bearings

Part Number 31312, Tapered Roller Bearings - TS (Tapered Single) Metric

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Technical specification for TIMKEN 31312

Timken 31312
Dimensions
Part Number	31312
Series	31312M
Cone Part Number	X31312M
Cup Part Number	Y31312M
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	22.000 mm 0.8661 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	74 mm 2.91 in
db - Cone Backface Backing Diameter	89 mm 3.5 in
Da - Cup Frontface Backing Diameter	123.70 mm 4.87 in
Db - Cup Backface Backing Diameter	111.00 mm 4.37 in
Ab - Cage-Cone Frontface Clearance	4.6 mm 0.18 in
Aa - Cage-Cone Backface Clearance	5.1 mm 0.2 in
a - Effective Center Location	7.6 mm 0.3 in
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)	48100 N 10800 lbf
C1 - Dynamic Radial Rating (1 million revolutions)	186000 N 41700 lbf
C0 - Static Radial Rating	188000 N 42200 lbf
Ca90?- Dynamic Thrust Rating (90 million revolutions)	68000 N 15300 lbf
Factors
K - Factor	0.71
e - ISO Factor	0.83
Y - ISO Factor	0.73
G1 - Heat Generation Factor (Roller-Raceway)	56.2
G2 - Heat Generation Factor (Rib-Roller End)	23.5
Cg - Geometry Factor	0.0792

Timken 31312, Tapered roller bearings, TS (Tapered Single), Metric, Dimensions: bore: 60 mm, Outer diameter: 130 mm, Bearing width: 33.500 mm.

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