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
300
11.811
D
Outside diameter
540
21.2598
T
Overall assembly width
145
5.7087
C
Cup / outer-ring width
70.002
2.756
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)
300
Bore d (in)
11.8110
Outside dia. D (mm)
540
Outside dia. D (in)
21.2598
Overall width T (mm)
145
Overall width T (in)
5.7087
Cup width C (in)
2.756
Bore d1 (in)
19.685
Outside dia. D1 (in)
15.827
Load ratings & speeds
Basic dynamic axial rating Ca (lbs)
787000
Basic static axial rating Coa (lbs)
3080000
Limiting speed - oil (rpm)
600
Weight
Weight (kg)
140.614
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.197
Shaft shoulder da min (in)
18.110
Housing shoulder Da (in)
16.142
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 200 rpm
4
875,188
102
8,466
6
583,458
392
32,708
8
437,594
1,024
85,333
10
350,075
2,154
179,536
15
233,383
8,323
693,622
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 3,500,750 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.
