Original catalogue drawing - Timken TRB Catalog, page 102
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
26.987
1.0625
D
Outside diameter
57.15
2.25
B
Inner-ring / bearing width
19.431
0.765
T
Overall assembly width
19.431
0.765
C
Cup / outer-ring width
14.732
0.58
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)
26.987
Bore d (in)
1.0625
Outside dia. D (mm)
57.150
Outside dia. D (in)
2.2500
Width B (mm)
19.431
Overall width T (mm)
19.431
Overall width T (in)
0.7650
Cup width C (mm)
14.732
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
10900
Basic static load rating Cor (lbs)
11900
Basic dynamic load rating Cr (N)
48500
Basic static load rating C0r (N)
52900
Dynamic rating C1 (N, ISO)
48500
Dynamic rating C1 (lbf, ISO)
10900
Radial rating C90 (N)
12600
Radial rating C90 (lbf)
2830
Thrust rating Ca90 (N)
11800
Thrust rating Ca90 (lbf)
2640
Static rating C0 (N)
52900
Static rating C0 (lbf)
11900
Factor e
0.55
Factor Y
1.10
Factor K
1.07
Geometry factor G1
11.3
Geometry factor G2
7.4
Geometry factor Cg
0.0644
Effective load centre a (mm)
-3.0
Weight
Weight (kg)
0.24
Cone weight (kg)
0.14
Cup weight (kg)
0.09
Total weight (kg)
0.23
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
1.5
Housing fillet r max (mm)
1.5
Shaft shoulder da (mm)
33.0
Shaft shoulder db (mm)
38.5
Housing shoulder Da (mm)
54.0
Housing shoulder Db (mm)
48.5
Cage projection Aa (mm)
1.1
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
12,125
102
3,386
6
8,083
392
13,083
8
6,062
1,024
34,133
10
4,850
2,154
71,814
15
3,233
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 48,500 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.102 (dimensions) / p.112 (cone) / p.112 (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.
