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
240
9.4488
D
Outside diameter
500
19.685
B
Inner-ring / bearing width
95
3.7402
r
Chamfer (min)
5
0.1969
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)
240
Outside dia. D (mm)
500
Width B (mm)
95
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
115777
Basic static load rating Cor (lbs)
140506
Basic dynamic load rating Cr (N)
515000
Basic static load rating C0r (N)
625000
Factor f0
14.2
Limiting speed - grease (rpm)
1,100
Limiting speed - oil (rpm)
1,300
Weight
Weight (kg)
94.4
Mounting dimensions (fillets / shoulders)
Housing fillet r max (mm)
5
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 300 rpm
4
128,750
64
3,556
6
85,833
216
12,000
8
64,375
512
28,444
10
51,500
1,000
55,556
15
34,333
3,375
187,500
Basic rating life per ISO 281: L10 = (C/P)3 with C = 515,000 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.185 (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.
