All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TSF (Tapered Single with Flange) > Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial > Part Number 87750 - 87111-B  

Part Number 87750 - 87111-B, Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial

    Download PDF Download PDF   
    border="0" Printable Page  
    Email Email This Page  
    Save To Favorites Save To Favorites
  

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.




Specifications  · Dimensions  · Abutment and Fillet Dimensions  · Basic Load Ratings  · Factors

Specifications

Series
87000

Cone Part Number
87750

Cup Part Number
87111-B

Design Unit
Inch

Cage Material
Stamped Steel


Dimensions

d - Bore
7.5 in
190.5 mm

D - Cup Outer Diameter
11.1250 in
282.575 mm

D1 - Flange Outer Diameter
11.4960 in
291.998 mm

B - Cone Width
1.875 in
47.625 mm

C - Cup Width
1.4375 in
36.513 mm

C1 - Cup Flange Width
0.3750 in
9.525 mm

T1 - Bearing Width to Flange
0.9375 in
23.812 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.14 in
3.600 mm

r - Cup Backface "To Clear" Radius2
0.130 in
3.30 mm

da - Cone Frontface Backing Diameter
7.99 in
203 mm

db - Cone Backface Backing Diameter
8.23 in
209 mm

Da - Cup Frontface Backing Diameter
10.75 in
272.03 mm

Ab - Cage-Cone Frontface Clearance
0.14 in
3.6 mm

Aa - Cage-Cone Backface Clearance
0.32 in
8.1 mm

a - Effective Center Location3
0.15 in
3.8 mm
1 These maximum fillet radii will be cleared by the bearing corners.
2 These maximum fillet radii will be cleared by the bearing corners.
3 Negative value indicates effective center inside cone backface.


Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)1
29700 lbf
132000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
114000 lbf
509000 N

C0 - Static Radial Rating
156000 lbf
692000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
21100 lbf
93900 N
1 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
2 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
3 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.


Factors

K - Factor1
1.41

e - ISO Factor2
0.42

Y - ISO Factor3
1.44

G1 - Heat Generation Factor (Roller-Raceway)
574.6

G2 - Heat Generation Factor (Rib-Roller End)
130.8

Cg - Geometry Factor4
0.116
1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
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 Geometry constant for Lubrication Life Adjustment Factor a3l.


 MORE IMAGES 

·  Timken_TRB_1ROWASSY_TSF_32312BM-90KM2-S

·  Timken_TRB_1ROWASSY_TSF_32312BM-90KM2-T



 DOWNLOADS 

Bearing Life Calculation Tool

Bearing Dimensional Tolerances

Tools and Guides for Engineers