Original catalogue drawing - NSK catalogue, page 75
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
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)
87500
Basic static load rating Cor (lbs)
107000
Limiting speed - grease (rpm)
2,200
Limiting speed - oil (rpm)
2,800
Weight
Weight (kg)
6.105
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.078
Shaft shoulder da min (in)
3.62
Shaft shoulder da max (in)
3.94
Housing shoulder Da min (in)
5.64
Housing shoulder Da max (in)
6.22
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 700 rpm
4
97,305
102
2,419
6
64,870
392
9,345
8
48,652
1,024
24,381
10
38,922
2,154
51,296
15
25,948
8,323
198,178
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 389,219 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.77 (dimensions) / p.78 (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.