Original catalogue drawing - NSK catalogue, page 131
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
70
2.7559
D
Outside diameter
150
5.9055
B
Inner-ring / bearing width
51
2.0079
T
Overall assembly width
54
2.126
C
Cup / outer-ring width
39
1.5354
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)
70
Bore d (in)
2.7559
Outside dia. D (mm)
150
Outside dia. D (in)
5.9055
Width B (mm)
51
Width B (in)
2.0079
Overall width T (mm)
54.00
Overall width T (in)
2.1260
Cup width C (mm)
39
Cup width C (in)
1.5354
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
58900
Basic static load rating Cor (lbs)
76400
Limiting speed - grease (rpm)
2,400
Limiting speed - oil (rpm)
3,400
Weight
Weight (kg)
4.06
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.138
Shaft shoulder da min (in)
3.585
Housing shoulder Da max (in)
5.433
Shaft shoulder db max (in)
3.346
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 800 rpm
4
65,500
102
2,117
6
43,667
392
8,177
8
32,750
1,024
21,333
10
26,200
2,154
44,884
15
17,467
8,323
173,406
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 262,000 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.133 (dimensions) / p.134 (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.
