TIMKEN 31309 bearings

Part Number 31309, Tapered Roller Bearings - TS (Tapered Single) Metric

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Technical specification for TIMKEN 31309

Timken 31309
Dimensions
Part Number	31309
Series	31309M
Cone Part Number	X31309M
Cup Part Number	Y31309M
Design Unit	Metric
Bearing Weight	0.9 Kg 2.1 lb
Cage Material	Stamped Steel
d - Bore	45 mm 1.7717 in
D - Cup Outer Diameter	100 mm 3.9370 in
B - Cone Width	25.000 mm 0.9843 in
C - Cup Width	18.000 mm 0.7087 in
T - Bearing Width	27.250 mm 1.0728 in
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius	2.030 mm 0.08 in
r - Cup Backface "To Clear" Radius	1.52 mm 0.06 in
da - Cone Frontface Backing Diameter	56 mm 2.2 in
db - Cone Backface Backing Diameter	67 mm 2.64 in
Da - Cup Frontface Backing Diameter	95.5 mm 3.76 in
Db - Cup Backface Backing Diameter	85.00 mm 3.35 in
Ab - Cage-Cone Frontface Clearance	4.3 mm 0.17 in
Aa - Cage-Cone Backface Clearance	4.8 mm 0.19 in
a - Effective Center Location	4.3 mm 0.17 in
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)	32500 N 7300 lbf
C1 - Dynamic Radial Rating (1 million revolutions)	125000 N 28200 lbf
C0 - Static Radial Rating	113000 N 25400 lbf
Ca90?- Dynamic Thrust Rating (90 million revolutions)	45900 N 10300 lbf
Factors
K - Factor	0.71
e - ISO Factor	0.83
Y - ISO Factor	0.73
G1 - Heat Generation Factor (Roller-Raceway)	30.4
G2 - Heat Generation Factor (Rib-Roller End)	12.7
Cg - Geometry Factor	0.1

Timken 31309, Tapered roller bearings, TS (Tapered Single), Metric, Dimensions: bore: 45 mm, Outer diameter: 100 mm, Bearing width: 27.250 mm.

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