Original catalogue drawing - Timken TRB Catalog, page 198
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
85.725
3.375
B
Inner-ring / bearing width
18.263
0.719
T
Overall assembly width
19.05
0.75
C
Cup / outer-ring width
12.7
0.5
r
Chamfer (min)
1.5
0.0591
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)
85.725
Outside dia. D (in)
3.3750
Width B (mm)
18.263
Overall width T (mm)
19.050
Overall width T (in)
0.7500
Cup width C (mm)
12.700
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
13700
Basic static load rating Cor (lbs)
14400
Basic dynamic load rating Cr (N)
61100
Basic static load rating C0r (N)
63900
Dynamic rating C1 (N, ISO)
61100
Dynamic rating C1 (lbf, ISO)
13700
Radial rating C90 (N)
15800
Radial rating C90 (lbf)
3560
Thrust rating Ca90 (N)
15400
Thrust rating Ca90 (lbf)
3470
Static rating C0 (N)
63900
Static rating C0 (lbf)
14400
Factor e
0.57
Factor Y
1.06
Factor K
1.03
Geometry factor G1
26.1
Geometry factor G2
22.1
Geometry factor Cg
0.0852
Effective load centre a (mm)
2.0
Weight
Weight (kg)
0.39
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
1.5
Housing fillet r max (mm)
1.5
Shaft shoulder da (mm)
56.0
Shaft shoulder db (mm)
59.0
Housing shoulder Da (mm)
81.0
Housing shoulder Db (mm)
76.0
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
15,275
102
3,386
6
10,183
392
13,083
8
7,638
1,024
34,133
10
6,110
2,154
71,814
15
4,073
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 61,100 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.198 (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.
