TIMKEN 2689-2631-B Bearing

TIMKEN 2689-2631-B tapered bearings with Flange

Also known as : 2689-2631-B

• Inside Diameter: 28.575 mm
• Outside Diameter: 66.421 mm
• Width: 8.725 mm
• Basic dynamic load rating: 76.6 kN
• Basic static load rating: 81.7 kN

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TIMKEN 2689-2631-B Bearing

Series	2600
model	2689-2631-B
Cone Part Number	2689
Cup Part Number	2631-B
Design Units	Imperial
Cage Type	Stamped Steel
Bearing Weight	0.300 Kg 0.70 lb
Dimensions
d - Bore	28.575 mm 1.1250 in
D - Cup Outer Diameter	66.421 mm 2.6150 in
D1 - Flange Outer Diameter	70.282 mm 2.7670 in
B - Cone Width	25.433 mm 1.0013 in
C - Cup Width	19.050 mm 0.7500 in
C1 - Cup Flange Width	3.962 mm 0.1560 in
T - Bearing Width to Flange	8.725 mm 0.3435 in
T1 - Bearing Width	23.813 mm 0.9375 in
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius	1.300 mm 0.050 in
r - Cup Backface "To Clear" Radius	0.80 mm 0.030 in
da - Cone Frontface Backing Diameter	36.10 mm 1.42 in
db - Cone Backface Backing Diameter	37.60 mm 1.48 in
Da - Cup Frontface Backing Diameter	62.48 mm 2.46 in
Ab - Cage-Cone Frontface Clearance	1.5 mm 0.06 in
Aa - Cage-Cone Backface Clearance	0.3 mm 0.01 in
a - Effective Center Location	-9.4 mm -0.37 in
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)	19900 N 4470 lbf
C1 - Dynamic Radial Rating (1 million revolutions)	76600 N 17200 lbf
C0 - Static Radial Rating	81700 N 18400 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)	8640 N 1940 lbf
Factors
K - Factor	2.3
e - ISO Factor	0.25
Y - ISO Factor	2.36
G1 - Heat Generation Factor (Roller-Raceway)	19.3
G2 - Heat Generation Factor (Rib-Roller End)	8
Cg - Geometry Factor	0.0598

As TIMKEN bearing distributor, Nodes bearings have TIMKEN 2689-2631-B bearings in stock, TSF (Tapered Single with Flange) Imperial , Tapered roller bearings.

Like the TS bearing design, the TSF design consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft. TSF bearings have flanged cups to facilitate axial location and accurately align seals in through-bored housings.