Original catalogue drawing - Timken TRB Catalog, page 374
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
387.248
15.246
D
Outside diameter
546.1
21.5
B
Inner-ring / bearing width
87.312
3.4375
T
Overall assembly width
87.312
3.4375
C
Cup / outer-ring width
68.262
2.6875
r
Chamfer (min)
6.4
0.252
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)
387.248
Bore d (in)
15.2460
Outside dia. D (mm)
546.100
Outside dia. D (in)
21.5000
Width B (mm)
87.312
Overall width T (mm)
87.312
Overall width T (in)
3.4375
Cup width C (mm)
68.262
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
420000
Basic static load rating Cor (lbs)
886000
Basic dynamic load rating Cr (N)
1870000
Basic static load rating C0r (N)
3940000
Dynamic rating C1 (N, ISO)
1870000
Dynamic rating C1 (lbf, ISO)
420000
Radial rating C90 (N)
484000
Radial rating C90 (lbf)
109000
Thrust rating Ca90 (N)
346000
Thrust rating Ca90 (lbf)
77800
Static rating C0 (N)
3940000
Static rating C0 (lbf)
886000
Factor e
0.42
Factor Y
1.44
Factor K
1.40
Geometry factor G1
4639.7
Geometry factor G2
498.9
Geometry factor Cg
0.2316
Effective load centre a (mm)
17.8
Weight
Weight (kg)
65.33
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
6.4
Housing fillet r max (mm)
6.4
Shaft shoulder da (mm)
414.0
Shaft shoulder db (mm)
424.0
Housing shoulder Da (mm)
526.7
Housing shoulder Db (mm)
510.0
Cage projection Aa (mm)
8.0
Cage projection Ab (mm)
2.7
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
467,500
102
3,386
6
311,667
392
13,083
8
233,750
1,024
34,133
10
187,000
2,154
71,814
15
124,667
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,870,000 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.374 (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.
