Original catalogue drawing - NSK catalogue, page 117
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
63.5
2.5
T
Overall assembly width
63.5
2.5
C
Cup / outer-ring width
48
1.8898
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)
63.5000
Width B (in)
2.5000
Overall width T (mm)
63.5
Overall width T (in)
2.5000
Cup width C (mm)
48
Cup width C (in)
1.8898
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
172000
Basic static load rating Cor (lbs)
355000
Limiting speed - grease (rpm)
800
Limiting speed - oil (rpm)
1,100
Weight
Weight (kg)
20.003
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.10
Shaft shoulder da min (in)
12.126
Housing shoulder Da max (in)
14.055
Shaft shoulder db max (in)
0.477
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 200 rpm
4
191,274
102
8,466
6
127,516
392
32,708
8
95,637
1,024
85,333
10
76,509
2,154
179,536
15
51,006
8,323
693,622
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 765,094 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.119 (dimensions) / p.120 (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.
