Original catalogue drawing - NSK catalogue, page 59
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
280
11.0236
D
Outside diameter
420
16.5354
B
Inner-ring / bearing width
65
2.5591
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)
280
Bore d (in)
11.0236
Outside dia. D (mm)
420
Outside dia. D (in)
16.5354
Width B (mm)
65
Width B (in)
2.5591
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
147000
Basic static load rating Cor (lbs)
235000
Limiting speed - grease (rpm)
1,400
Limiting speed - oil (rpm)
1,700
Weight
Weight (kg)
30.391
Mounting dimensions (fillets / shoulders)
Fillet ra max (in)
0.118
Fillet rb max (in)
0.118
Shaft shoulder da min (in)
11.654
Housing shoulder Da max (in)
15.906
Shaft shoulder db min (in)
11.654
Shaft shoulder db max (in)
12.283
Housing shoulder Db min (in)
15.236
Housing shoulder Db max (in)
15.906
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 400 rpm
4
163,472
102
4,233
6
108,981
392
16,354
8
81,736
1,024
42,667
10
65,389
2,154
89,768
15
43,593
8,323
346,811
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 653,889 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.61 (dimensions) / p.62 (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.
