The Timken Company - Tapered Roller Bearings - Single Flanged Cups - Metric

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Items	JL724314-B Tapered Roller Bearings - Single Flanged Cups - Metric	JL730612-B Tapered Roller Bearings - Single Flanged Cups - Metric	JLM722912-B Tapered Roller Bearings - Single Flanged Cups - Metric	JM624610-B Tapered Roller Bearings - Single Flanged Cups - Metric	JM716610-B Tapered Roller Bearings - Single Flanged Cups - Metric
Series	N/A L724300	N/A L730600	N/A LM722900	N/A M624600	N/A M716600
Cup Part Number	N/A JL724314-B	N/A JL730612-B	N/A JLM722912-B	N/A JM624610-B	N/A JM716610-B
Design Units	N/A METRIC
D - Cup Outer Diameter	N/A 170 mm6.6929 in	N/A 205 mm8.0709 in	N/A 165 mm6.4961 in	N/A 180 mm7.0866 in	N/A 130 mm5.1181 in
D1 - Flange Outer Diameter	N/A 177.000 mm6.9685 in	N/A 210.000 mm8.2677 in	N/A 172.000 mm6.7717 in	N/A 188.000 mm7.4016 in	N/A 135.500 mm5.3346 in
C - Cup Width	N/A 19.05 mm0.75 in	N/A 21.438 mm0.8440 in	N/A 21 mm0.8268 in	N/A 26 mm1.0236 in	N/A 24 mm0.9449 in
C1 - Cup Flange Width	N/A 5.000 mm0.1969 in	N/A 4.862 mm0.1914 in	N/A 5.500 mm0.2165 in	N/A 6.580 mm0.2591 in	N/A 5.558 mm0.2188 in
r - Cup Backface "To Clear" Radius¹	N/A 3.30 mm0.130 in	N/A 3.30 mm0.130 in	N/A 3 mm0.12 in	N/A 1.5 mm0.06 in	N/A 2.5 mm0.1 in
Da - Cup Frontface Backing Diameter	N/A 164.59 mm6.48 in	N/A 200.91 mm7.91 in	N/A 160.02 mm6.34 in	N/A 175.01 mm6.93 in	N/A 128.02 mm5.04 in
Db - Cup Backface Backing Diameter	N/A
K - Factor²	N/A 1.27	N/A 1.27	N/A 1.27	N/A 1.41	N/A 1.31
e - ISO Factor³	N/A 0.46	N/A 0.46	N/A 0.46	N/A 0.41	N/A 0.44
Y - ISO Factor⁴	N/A 1.31	N/A 1.31	N/A 1.31	N/A 1.45	N/A 1.35
G1 - Heat Generation Factor (Roller-Raceway)	N/A	N/A 295	N/A 161	N/A 227	N/A 117
G2 - Heat Generation Factor (Rib-Roller End)	N/A	N/A 103	N/A 57.2	N/A 61.6	N/A 36.6
Cg - Geometry Factor⁵	N/A 0.147	N/A 0.176	N/A 0.145	N/A 0.108	N/A 0.13
Full Timken Part Number	N/A L724300	N/A L730600	N/A LM722900	N/A M624600	N/A M716600
¹ These maximum fillet radii will be cleared by the bearing corners. ² These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. ³ These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. ⁴ These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. ⁵ Geometry constant for Lubrication Life Adjustment Factor a3l.