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
25
0.9843
D
Outside diameter
62
2.4409
B
Inner-ring / bearing width
24
0.9449
T
Overall assembly width
25.25
0.9941
C
Cup / outer-ring width
20
0.7874
r
Chamfer (min)
1.5
0.0591
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)
25
Outside dia. D (mm)
62
Width B (mm)
24
Overall width T (mm)
25.25
Cup width C (mm)
20
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
17310
Basic static load rating Cor (lbs)
14837
Basic dynamic load rating Cr (N)
77000
Basic static load rating C0r (N)
66000
Limiting speed - grease (rpm)
6,300
Weight
Weight (kg)
0.376
Mounting dimensions (fillets / shoulders)
Housing fillet r max (mm)
1.5
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 2,100 rpm
4
19,250
102
806
6
12,833
392
3,115
8
9,625
1,024
8,127
10
7,700
2,154
17,099
15
5,133
8,323
66,059
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 77,000 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.261 (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.
