Original catalogue drawing - NSK catalogue, page 221
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
180
7.0866
D
Outside diameter
280
11.0236
B
Inner-ring / bearing width
74
2.9134
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)
180
Bore d (in)
7.0866
Outside dia. D (mm)
280
Outside dia. D (in)
11.0236
Width B (mm)
74
Width B (in)
2.9134
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
127000
Basic static load rating Cor (lbs)
225000
Limiting speed - grease (rpm)
3,000
Limiting speed - oil (rpm)
3,400
Weight
Weight (kg)
16.665
Mounting dimensions (fillets / shoulders)
Fillet ra (in)
0.0787
Shaft shoulder da min (in)
10.5906
Shaft shoulder da (in)
7.5197
Housing shoulder Db (in)
10.1575
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 1,000 rpm
4
141,231
64
1,067
6
94,154
216
3,600
8
70,616
512
8,533
10
56,492
1,000
16,667
15
37,662
3,375
56,250
Basic rating life per ISO 281: L10 = (C/P)3 with C = 564,924 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.223 (dimensions) / p.224 (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.
