Original catalogue drawing - NSK catalogue, page 223
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
280
11.0236
D
Outside diameter
380
14.9606
B
Inner-ring / bearing width
75
2.9528
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)
280
Bore d (in)
11.0236
Outside dia. D (mm)
380
Outside dia. D (in)
14.9606
Width B (mm)
75
Width B (in)
2.9528
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
155000
Basic static load rating Cor (lbs)
328000
Limiting speed - grease (rpm)
2,200
Limiting speed - oil (rpm)
2,400
Weight
Weight (kg)
22.652
Mounting dimensions (fillets / shoulders)
Fillet ra (in)
0.0787
Shaft shoulder da min (in)
14.5276
Shaft shoulder da (in)
11.4567
Housing shoulder Db (in)
14.0945
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 700 rpm
4
172,369
64
1,524
6
114,912
216
5,143
8
86,184
512
12,190
10
68,947
1,000
23,810
15
45,965
3,375
80,357
Basic rating life per ISO 281: L10 = (C/P)3 with C = 689,474 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.225 (dimensions) / p.226 (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.
