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
340
13.3858
D
Outside diameter
460
18.1102
B
Inner-ring / bearing width
72
2.8346
T
Overall assembly width
76
2.9921
C
Cup / outer-ring width
63
2.4803
r
Chamfer (min)
3
0.1181
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)
340
Outside dia. D (mm)
460
Width B (mm)
72
Overall width T (mm)
76
Cup width C (mm)
63
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
251786
Basic static load rating Cor (lbs)
436129
Basic dynamic load rating Cr (N)
1120000
Basic static load rating C0r (N)
1940000
Limiting speed - grease (rpm)
630
Effective load centre a (mm)
4
Weight
Weight (kg)
33.6
Mounting dimensions (fillets / shoulders)
Housing fillet r max (mm)
3
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 200 rpm
4
280,000
102
8,466
6
186,667
392
32,708
8
140,000
1,024
85,333
10
112,000
2,154
179,536
15
74,667
8,323
693,622
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,120,000 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.
Source & traceability
Brand
NSK
Source catalogue
NSK CAT. No. E1103 (metric)
Catalogue page
p.270 (dimensions)
Load ratings in newtons, weights in kg, limiting speeds for grease and oil lubrication.
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.
