Original catalogue drawing - NSK catalogue, page 39
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
200
7.874
D
Outside diameter
420
16.5354
B
Inner-ring / bearing width
80
3.1496
r
Chamfer (min)
3.988
0.157
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)
200
Bore d (in)
7.8740
Outside dia. D (mm)
420
Outside dia. D (in)
16.5354
Width B (mm)
80
Width B (in)
3.1496
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
97000
Basic static load rating Cor (lbs)
135300
Limiting speed - grease (rpm)
1,200
Limiting speed - oil (rpm)
1,600
Weight
Weight (kg)
53.07
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.157
Shaft shoulder da min (in)
8.740
Housing shoulder Da max (in)
15.669
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 400 rpm
4
107,869
64
2,667
6
71,913
216
9,000
8
53,935
512
21,333
10
43,148
1,000
41,667
15
28,765
3,375
140,625
Basic rating life per ISO 281: L10 = (C/P)3 with C = 431,477 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.41 (dimensions) / p.42 (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.
