Original catalogue drawing - Timken TRB Catalog, page 180
Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.
Scale cross-section
Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own
dimensions for selection reference only - not a manufacturing or assembly drawing.
Dimension table (mm / inch)
Symbol
Dimension
mm
inch
d
Bore diameter
44.987
1.7711
D
Outside diameter
81.973
3.2273
B
Inner-ring / bearing width
25.4
1
T
Overall assembly width
23.876
0.94
C
Cup / outer-ring width
19.114
0.7525
r
Chamfer (min)
1
0.0394
Notes
Tapered roller bearings are cone / cup assemblies; cone and cup weights are listed separately and the total is their sum. Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.
Main dimensions
Bore d (mm)
44.987
Bore d (in)
1.7712
Outside dia. D (mm)
81.973
Outside dia. D (in)
3.2273
Width B (mm)
25.400
Overall width T (mm)
23.876
Overall width T (in)
0.9400
Cup width C (mm)
19.114
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
20300
Basic static load rating Cor (lbs)
24900
Basic dynamic load rating Cr (N)
90500
Basic static load rating C0r (N)
111000
Dynamic rating C1 (N, ISO)
90500
Dynamic rating C1 (lbf, ISO)
20300
Radial rating C90 (N)
23500
Radial rating C90 (lbf)
5270
Thrust rating Ca90 (N)
13500
Thrust rating Ca90 (lbf)
3020
Static rating C0 (N)
111000
Static rating C0 (lbf)
24900
Factor e
0.33
Factor Y
1.79
Factor K
1.74
Geometry factor G1
35.2
Geometry factor G2
14.3
Geometry factor Cg
0.0801
Effective load centre a (mm)
-6.4
Weight
Weight (kg)
0.53
Cone weight (kg)
0.34
Cup weight (kg)
0.18
Total weight (kg)
0.52
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
1.0
Shaft shoulder da (mm)
51.0
Shaft shoulder db (mm)
57.0
Housing shoulder Da (mm)
77.0
Housing shoulder Db (mm)
74.0
Cage projection Aa (mm)
1.0
Cage projection Ab (mm)
0.7
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
22,625
102
3,386
6
15,083
392
13,083
8
11,312
1,024
34,133
10
9,050
2,154
71,814
15
6,033
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 90,500 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.
Source & traceability
Brand
Timken
Source catalogue
Timken Tapered Roller Bearing Catalog (2016)
Catalogue page
p.180 (dimensions) / p.79 (cone) / p.79 (cup)
Series type
TS
ISO dynamic rating C1, Timken C90 / Ca90, static rating C0, geometry factors and assembly weight.
Send us the quantity you need and we will come back with price and
lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.
