Original catalogue drawing - NSK catalogue, page 33
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
40
1.5748
D
Outside diameter
80
3.1496
B
Inner-ring / bearing width
30.2
1.189
r
Chamfer (min)
0.991
0.039
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)
40
Bore d (in)
1.5748
Outside dia. D (mm)
80
Outside dia. D (in)
3.1496
Width B (mm)
30.2
Width B (in)
1.1890
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
9930
Basic static load rating Cor (lbs)
7510
Limiting speed - grease (rpm)
5,300
Limiting speed - oil (rpm)
7,100
Weight
Weight (kg)
0.572
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.039
Shaft shoulder da min (in)
1.833
Housing shoulder Da max (in)
2.874
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 1,700 rpm
4
11,043
64
627
6
7,362
216
2,118
8
5,521
512
5,020
10
4,417
1,000
9,804
15
2,945
3,375
33,088
Basic rating life per ISO 281: L10 = (C/P)3 with C = 44,171 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.35 (dimensions) / p.36 (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.
