Original catalogue drawing - Timken TRB Catalog, page 372
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
377.825
14.875
D
Outside diameter
522.288
20.5625
B
Inner-ring / bearing width
84.138
3.3125
T
Overall assembly width
85.725
3.375
C
Cup / outer-ring width
61.912
2.4375
r
Chamfer (min)
3.3
0.1299
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)
377.825
Bore d (in)
14.8750
Outside dia. D (mm)
522.288
Outside dia. D (in)
20.5625
Width B (mm)
84.138
Overall width T (mm)
85.725
Overall width T (in)
3.3750
Cup width C (mm)
61.912
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
313000
Basic static load rating Cor (lbs)
663000
Basic dynamic load rating Cr (N)
1390000
Basic static load rating C0r (N)
2950000
Dynamic rating C1 (N, ISO)
1390000
Dynamic rating C1 (lbf, ISO)
313000
Radial rating C90 (N)
360000
Radial rating C90 (lbf)
81000
Thrust rating Ca90 (N)
238000
Thrust rating Ca90 (lbf)
53500
Static rating C0 (N)
2950000
Static rating C0 (lbf)
663000
Factor e
0.39
Factor Y
1.56
Factor K
1.51
Geometry factor G1
3379.9
Geometry factor G2
375.8
Geometry factor Cg
0.2028
Effective load centre a (mm)
8.9
Weight
Weight (kg)
50.67
Cone weight (kg)
35.65
Cup weight (kg)
14.74
Total weight (kg)
50.39
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
6.4
Housing fillet r max (mm)
3.3
Shaft shoulder da (mm)
399.0
Shaft shoulder db (mm)
409.0
Housing shoulder Da (mm)
499.5
Housing shoulder Db (mm)
493.0
Cage projection Aa (mm)
12.3
Cage projection Ab (mm)
3.2
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
347,500
102
3,386
6
231,667
392
13,083
8
173,750
1,024
34,133
10
139,000
2,154
71,814
15
92,667
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,390,000 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.372 (dimensions) / p.194 (cone) / p.194 (cup)
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.
