Original catalogue drawing - NSK catalogue, page 151
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
520
20.4724
T
Overall assembly width
145
5.7087
C
Cup / outer-ring width
67.996
2.677
Notes
Thrust bearing ratings are axial values Ca / Coa; T is the overall height. 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)
520
Outside dia. D (in)
20.4724
Overall width T (mm)
145
Overall width T (in)
5.7087
Cup width C (in)
2.677
Bore d1 (in)
18.898
Outside dia. D1 (in)
15.118
Load ratings & speeds
Basic dynamic axial rating Ca (lbs)
764000
Basic static axial rating Coa (lbs)
2950000
Limiting speed - oil (rpm)
630
Weight
Weight (kg)
131.995
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.197
Shaft shoulder da min (in)
17.323
Housing shoulder Da (in)
15.354
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 200 rpm
4
849,610
102
8,466
6
566,407
392
32,708
8
424,805
1,024
85,333
10
339,844
2,154
179,536
15
226,563
8,323
693,622
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 3,398,441 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.153 (dimensions) / p.154 (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.
