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
123.825
4.875
D
Outside diameter
254
10
B
Inner-ring / bearing width
9.7
0.3819
T
Overall assembly width
77.788
3.0625
C
Cup / outer-ring width
61.912
2.4375
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)
123.825
Bore d (in)
4.8750
Outside dia. D (mm)
254.000
Outside dia. D (in)
10.0000
Width B (mm)
9.7
Width B (in)
3.2500
Overall width T (mm)
77.788
Overall width T (in)
3.0625
Cup width C (mm)
61.912
Cup width C (in)
2.4375
Weight
Cone weight (kg)
13.04
Cup weight (kg)
5.98
Total weight (kg)
19.02
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
13.04
Housing fillet r max (mm)
6.4
Source & traceability
Brand
Timken
Source catalogue
Timken Bearing Dimension Catalog
Catalogue page
p.319 (dimensions) / p.137 (cone) / p.137 (cup)
Dimensions and component weights only - this catalogue publishes no load ratings or speeds.
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.
