Original catalogue drawing - NSK catalogue, page 35
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
140
5.5118
B
Inner-ring / bearing width
44.4
1.748
r
Chamfer (min)
1.981
0.078
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)
140
Outside dia. D (in)
5.5118
Width B (mm)
44.4
Width B (in)
1.7480
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
22300
Basic static load rating Cor (lbs)
20900
Limiting speed - grease (rpm)
3,000
Limiting speed - oil (rpm)
3,800
Weight
Weight (kg)
2.499
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.078
Shaft shoulder da min (in)
3.543
Housing shoulder Da max (in)
5.118
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 1,000 rpm
4
24,799
64
1,067
6
16,533
216
3,600
8
12,399
512
8,533
10
9,920
1,000
16,667
15
6,613
3,375
56,250
Basic rating life per ISO 281: L10 = (C/P)3 with C = 99,195 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.37 (dimensions) / p.38 (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.
