Original catalogue drawing - NSK catalogue, page 41
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
80
3.1496
D
Outside diameter
200
7.874
B
Inner-ring / bearing width
48
1.8898
r
Chamfer (min)
2.489
0.098
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)
80
Bore d (in)
3.1496
Outside dia. D (mm)
200
Outside dia. D (in)
7.8740
Width B (mm)
48
Width B (in)
1.8898
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
37900
Basic static load rating Cor (lbs)
32000
Limiting speed - grease (rpm)
2,800
Limiting speed - oil (rpm)
3,900
Weight
Weight (kg)
7.575
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.098
Shaft shoulder da min (in)
3.701
Housing shoulder Da max (in)
7.323
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 900 rpm
4
42,147
64
1,185
6
28,098
216
4,000
8
21,073
512
9,481
10
16,859
1,000
18,519
15
11,239
3,375
62,500
Basic rating life per ISO 281: L10 = (C/P)3 with C = 168,588 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.43 (dimensions) / p.44 (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.
