Original catalogue drawing - NSK catalogue, page 61
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
440
17.3228
B
Inner-ring / bearing width
120
4.7244
Notes
Cylindrical roller entries from the NSK inch catalogue are series numbers covering the N / NU / NJ / NUP / NH prefixes of the same size. 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
Bore d (in)
9.4488
Outside dia. D (mm)
440
Outside dia. D (in)
17.3228
Width B (mm)
120
Width B (in)
4.7244
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
321000
Basic static load rating Cor (lbs)
519000
Limiting speed - grease (rpm)
1,200
Limiting speed - oil (rpm)
1,500
Weight
Weight (kg)
84.368
Mounting dimensions (fillets / shoulders)
Fillet ra max (in)
0.118
Fillet rb max (in)
0.118
Shaft shoulder da min (in)
--
Housing shoulder Da max (in)
16.693
Shaft shoulder db min (in)
10.079
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 400 rpm
4
356,970
102
4,233
6
237,980
392
16,354
8
178,485
1,024
42,667
10
142,788
2,154
89,768
15
95,192
8,323
346,811
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,427,879 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 inch product catalogue
Catalogue page
p.63 (dimensions) / p.64 (ratings)
Dimensions in inches and millimetres, load ratings in lbs.
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.
