Original catalogue drawing - NSK catalogue, page 119
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
50
1.9685
D
Outside diameter
80
3.1496
B
Inner-ring / bearing width
24
0.9449
T
Overall assembly width
24
0.9449
C
Cup / outer-ring width
19
0.748
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)
50
Bore d (in)
1.9685
Outside dia. D (mm)
80
Outside dia. D (in)
3.1496
Width B (mm)
24
Width B (in)
0.9449
Overall width T (mm)
24
Overall width T (in)
0.9449
Cup width C (mm)
19
Cup width C (in)
0.7480
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
15800
Basic static load rating Cor (lbs)
23400
Limiting speed - grease (rpm)
4,300
Limiting speed - oil (rpm)
6,000
Weight
Weight (kg)
0.454
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.04
Shaft shoulder da min (in)
2.323
Housing shoulder Da max (in)
2.913
Shaft shoulder db max (in)
2.165
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 1,400 rpm
4
17,570
102
1,209
6
11,714
392
4,673
8
8,785
1,024
12,190
10
7,028
2,154
25,648
15
4,685
8,323
99,089
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 70,282 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.121 (dimensions) / p.122 (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.
