TIMKEN 1778-1738X Bearing

TIMKEN 1778-1738X tapered roller bearings

Also known as : 1778-1738X

• Inside Diameter: 20.627 mm
• Outside Diameter: 57.15 mm
• Width: 20.221 mm
• Basic dynamic load rating: 45.4 kN
• Basic static load rating: 45.3 kN

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TIMKEN 1778-1738X Bearing

Series	1700
model	1778-1738X
Cone Part Number	1778
Cup Part Number	1738X
Design Units	Imperial
Cage Type	Stamped Steel
Bearing Weight	0.300 Kg 0.60 lb
Dimensions
d - Bore	20.627 mm 0.8121 in
D - Cup Outer Diameter	57.150 mm 2.2500 in
B - Cone Width	19.837 mm 0.7810 in
C - Cup Width	17.551 mm 0.6910 in
T - Bearing Width	20.221 mm 0.7961 in
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius	0.760 mm 0.03 in
r - Cup Backface "To Clear" Radius	2.29 mm 0.090 in
da - Cone Frontface Backing Diameter	25.91 mm 1.02 in
db - Cone Backface Backing Diameter	26.92 mm 1.06 in
Da - Cup Frontface Backing Diameter	51.10 mm 2.05 in
Db - Cup Backface Backing Diameter	48.51 mm 1.91 in
Ab - Cage-Cone Frontface Clearance	2 mm 0.08 in
Aa - Cage-Cone Backface Clearance	0.3 mm 0.01 in
a - Effective Center Location	-6.9 mm -0.27 in
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)	11800 N 2650 lbf
C1 - Dynamic Radial Rating (1 million revolutions)	45400 N 10200 lbf
C0 - Static Radial Rating	45300 N 10200 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)	6200 N 1390 lbf
Factors
K - Factor	1.9
e - ISO Factor	0.31
Y - ISO Factor	1.95
G1 - Heat Generation Factor (Roller-Raceway)	10.6
G2 - Heat Generation Factor (Rib-Roller End)	5.4
Cg - Geometry Factor	0.0521

TIMKEN 1778-1738X bearings, TS (Tapered Single) Imperial, Tapered roller bearings.