Original catalogue drawing - NSK catalogue, page 17
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
15.9
0.626
D
Outside diameter
40
1.5748
B
Inner-ring / bearing width
12
0.4724
r
Chamfer (min)
0.61
0.024
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)
15.9
Bore d (in)
0.6250
Outside dia. D (mm)
40
Outside dia. D (in)
1.5748
Width B (mm)
12
Width B (in)
0.4724
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
2150
Basic static load rating Cor (lbs)
1080
Limiting speed - grease (rpm)
17,000
Limiting speed - oil (rpm)
20,000
Factor f0
13.2
Weight
Weight (kg)
0.064
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.024
Shaft shoulder da min (in)
0.750
Shaft shoulder da max (in)
0.926
Housing shoulder Da max (in)
1.380
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 3,000 rpm
4
2,391
64
356
6
1,594
216
1,200
8
1,195
512
2,844
10
956
1,000
5,556
15
638
3,375
18,750
Basic rating life per ISO 281: L10 = (C/P)3 with C = 9,564 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.19 (dimensions) / p.20 (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.
