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Part Number 87750 - 87111-B
Part Number 87750 - 87111-B, Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial
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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.
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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" Radius
1
0.14
in
3.600
mm
r - Cup Backface "To Clear" Radius
2
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 Location
3
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
C
a90
- Dynamic Thrust Rating (90 million revolutions)
3
21100
lbf
93900
N
1
Based on 90 x 10
6
revolutions L
10
life, for The Timken Company life calculation method. C
90
and C
a90
are radial and thrust values.
2
Based on 1 x 10
6
revolutions L
10
life, for the ISO life calculation method.
3
Based on 90 x 10
6
revolutions L
10
life, for The Timken Company life calculation method. C
90
and C
a90
are radial and thrust values for a single-row, C
90(2)
is the two-row radial value.
Factors
K - Factor
1
1.41
e - ISO Factor
2
0.42
Y - ISO Factor
3
1.44
G1 - Heat Generation Factor (Roller-Raceway)
574.6
G2 - Heat Generation Factor (Rib-Roller End)
130.8
Cg - Geometry Factor
4
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
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·
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