Original catalogue drawing - Timken TRB Catalog, page 428
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
180
7.0866
D
Outside diameter
320
12.5984
B
Inner-ring / bearing width
86
3.3858
T
Overall assembly width
91
3.5827
C
Cup / outer-ring width
71
2.7953
r
Chamfer (min)
4
0.1575
Notes
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)
180.000
Bore d (in)
7.0866
Outside dia. D (mm)
320.000
Outside dia. D (in)
12.5984
Width B (mm)
86.000
Overall width T (mm)
91.000
Overall width T (in)
3.5827
Cup width C (mm)
71.000
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
255000
Basic static load rating Cor (lbs)
427000
Basic dynamic load rating Cr (N)
1140000
Basic static load rating C0r (N)
1900000
Dynamic rating C1 (N, ISO)
1140000
Dynamic rating C1 (lbf, ISO)
255000
Radial rating C90 (N)
294000
Radial rating C90 (lbf)
66200
Thrust rating Ca90 (N)
227000
Thrust rating Ca90 (lbf)
51000
Static rating C0 (N)
1900000
Static rating C0 (lbf)
427000
Factor e
0.46
Factor Y
1.30
Factor K
1.27
Geometry factor G1
988.6
Geometry factor G2
103.7
Geometry factor Cg
0.1440
Effective load centre a (mm)
-11.4
Weight
Weight (kg)
30.26
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
5.0
Housing fillet r max (mm)
4.0
Shaft shoulder da (mm)
210.0
Shaft shoulder db (mm)
220.0
Housing shoulder Da (mm)
303.0
Housing shoulder Db (mm)
288.0
Cage projection Aa (mm)
8.6
Cage projection Ab (mm)
8.1
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
285,000
102
3,386
6
190,000
392
13,083
8
142,500
1,024
34,133
10
114,000
2,154
71,814
15
76,000
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,140,000 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.428 (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.
