Original catalogue drawing - Timken TRB Catalog, page 202
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
50.8
2
D
Outside diameter
104.775
4.125
B
Inner-ring / bearing width
30.958
1.2188
T
Overall assembly width
30.162
1.1875
C
Cup / outer-ring width
23.812
0.9375
r
Chamfer (min)
0.8
0.0315
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)
50.800
Bore d (in)
2.0000
Outside dia. D (mm)
104.775
Outside dia. D (in)
4.1250
Width B (mm)
30.958
Overall width T (mm)
30.162
Overall width T (in)
1.1875
Cup width C (mm)
23.812
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
34500
Basic static load rating Cor (lbs)
42600
Basic dynamic load rating Cr (N)
153000
Basic static load rating C0r (N)
189000
Dynamic rating C1 (N, ISO)
153000
Dynamic rating C1 (lbf, ISO)
34500
Radial rating C90 (N)
39700
Radial rating C90 (lbf)
8930
Thrust rating Ca90 (N)
22600
Thrust rating Ca90 (lbf)
5090
Static rating C0 (N)
189000
Static rating C0 (lbf)
42600
Factor e
0.33
Factor Y
1.80
Factor K
1.76
Geometry factor G1
63.5
Geometry factor G2
16.9
Geometry factor Cg
0.0971
Effective load centre a (mm)
-8.1
Weight
Weight (kg)
1.22
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
2.3
Housing fillet r max (mm)
0.8
Shaft shoulder da (mm)
59.0
Shaft shoulder db (mm)
63.0
Housing shoulder Da (mm)
99.0
Housing shoulder Db (mm)
95.0
Cage projection Aa (mm)
2.1
Cage projection Ab (mm)
1.8
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
38,250
102
3,386
6
25,500
392
13,083
8
19,125
1,024
34,133
10
15,300
2,154
71,814
15
10,200
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 153,000 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.202 (dimensions)
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.
