Original catalogue drawing - Timken TRB Catalog, page 260
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
71.437
2.8125
D
Outside diameter
127
5
B
Inner-ring / bearing width
36.512
1.4375
T
Overall assembly width
36.512
1.4375
C
Cup / outer-ring width
26.988
1.0625
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)
71.437
Bore d (in)
2.8125
Outside dia. D (mm)
127.000
Outside dia. D (in)
5.0000
Width B (mm)
36.512
Overall width T (mm)
36.512
Overall width T (in)
1.4375
Cup width C (mm)
26.988
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
51500
Basic static load rating Cor (lbs)
57600
Basic dynamic load rating Cr (N)
229000
Basic static load rating C0r (N)
256000
Dynamic rating C1 (N, ISO)
229000
Dynamic rating C1 (lbf, ISO)
51500
Radial rating C90 (N)
59400
Radial rating C90 (lbf)
13400
Thrust rating Ca90 (N)
51100
Thrust rating Ca90 (lbf)
11500
Static rating C0 (N)
256000
Static rating C0 (lbf)
57600
Factor e
0.50
Factor Y
1.20
Factor K
1.16
Geometry factor G1
91.7
Geometry factor G2
22.9
Geometry factor Cg
0.1252
Effective load centre a (mm)
-3.8
Weight
Weight (kg)
1.84
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
1.5
Shaft shoulder da (mm)
82.0
Shaft shoulder db (mm)
91.0
Housing shoulder Da (mm)
121.0
Housing shoulder Db (mm)
113.0
Cage projection Aa (mm)
4.0
Cage projection Ab (mm)
1.3
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
57,250
102
3,386
6
38,167
392
13,083
8
28,625
1,024
34,133
10
22,900
2,154
71,814
15
15,267
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 229,000 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.260 (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.
