Original catalogue drawing - NSK catalogue, page 125
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
26
1.0236
T
Overall assembly width
28.25
1.1122
C
Cup / outer-ring width
20
0.7874
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)
26
Width B (in)
1.0236
Overall width T (mm)
28.25
Overall width T (in)
1.1122
Cup width C (mm)
20
Cup width C (in)
0.7874
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
33000
Basic static load rating Cor (lbs)
42700
Limiting speed - grease (rpm)
2,600
Limiting speed - oil (rpm)
3,400
Weight
Weight (kg)
1.633
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.118
Shaft shoulder da min (in)
3.743
Housing shoulder Da max (in)
5.118
Shaft shoulder db max (in)
3.622
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 800 rpm
4
36,698
102
2,117
6
24,465
392
8,177
8
18,349
1,024
21,333
10
14,679
2,154
44,884
15
9,786
8,323
173,406
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 146,791 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.127 (dimensions) / p.128 (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.