Original catalogue drawing - NSK catalogue, page 29
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
170
6.6929
B
Inner-ring / bearing width
58
2.2835
r
Chamfer (min)
2.007
0.079
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)
170
Outside dia. D (in)
6.6929
Width B (mm)
58
Width B (in)
2.2835
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
29200
Basic static load rating Cor (lbs)
10100
Limiting speed - grease (rpm)
3,200
Limiting speed - oil (rpm)
4,000
Weight
Weight (kg)
5.439
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.079
Shaft shoulder da min (in)
3.585
Housing shoulder Da max (in)
6.265
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 1,000 rpm
4
32,472
64
1,067
6
21,648
216
3,600
8
16,236
512
8,533
10
12,989
1,000
16,667
15
8,659
3,375
56,250
Basic rating life per ISO 281: L10 = (C/P)3 with C = 129,888 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.31 (dimensions) / p.32 (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.
