Original catalogue drawing - Timken TRB Catalog, page 194
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
49.987
1.968
D
Outside diameter
114.3
4.5
B
Inner-ring / bearing width
44.45
1.75
T
Overall assembly width
44.45
1.75
C
Cup / outer-ring width
36.068
1.42
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)
49.987
Bore d (in)
1.9680
Outside dia. D (mm)
114.300
Outside dia. D (in)
4.5000
Width B (mm)
44.450
Overall width T (mm)
44.450
Overall width T (in)
1.7500
Cup width C (mm)
36.068
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
55300
Basic static load rating Cor (lbs)
65100
Basic dynamic load rating Cr (N)
246000
Basic static load rating C0r (N)
290000
Dynamic rating C1 (N, ISO)
246000
Dynamic rating C1 (lbf, ISO)
55300
Radial rating C90 (N)
63700
Radial rating C90 (lbf)
14300
Thrust rating Ca90 (N)
43800
Thrust rating Ca90 (lbf)
9860
Static rating C0 (N)
290000
Static rating C0 (lbf)
65100
Factor e
0.40
Factor Y
1.49
Factor K
1.45
Geometry factor G1
72.0
Geometry factor G2
15.6
Geometry factor Cg
0.1078
Effective load centre a (mm)
-13.5
Weight
Weight (kg)
2.25
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
0.8
Shaft shoulder da (mm)
61.0
Shaft shoulder db (mm)
72.0
Housing shoulder Da (mm)
107.0
Housing shoulder Db (mm)
99.0
Cage projection Aa (mm)
2.7
Cage projection Ab (mm)
3.3
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
61,500
102
3,386
6
41,000
392
13,083
8
30,750
1,024
34,133
10
24,600
2,154
71,814
15
16,400
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 246,000 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.194 (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.
