Original catalogue drawing - NSK catalogue, page 93
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
120
4.7244
D
Outside diameter
180
7.0866
B
Inner-ring / bearing width
60
2.3622
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)
120
Bore d (in)
4.7244
Outside dia. D (mm)
180
Outside dia. D (in)
7.0866
Width B (mm)
60
Width B (in)
2.3622
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
89500
Basic static load rating Cor (lbs)
158000
Limiting speed - grease (rpm)
1,500
Limiting speed - oil (rpm)
2,000
Weight
Weight (kg)
5.271
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.078
Shaft shoulder da min (in)
5.12
Shaft shoulder da max (in)
5.17
Housing shoulder Da min (in)
6.21
Housing shoulder Da max (in)
6.69
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
99,529
102
3,386
6
66,353
392
13,083
8
49,764
1,024
34,133
10
39,812
2,154
71,814
15
26,541
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 398,116 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.95 (dimensions) / p.96 (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.