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
380
14.9606
D
Outside diameter
520
20.4724
B
Inner-ring / bearing width
82
3.2283
T
Overall assembly width
87
3.4252
C
Cup / outer-ring width
71
2.7953
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)
380
Bore d (in)
14.9606
Outside dia. D (mm)
520
Outside dia. D (in)
20.4724
Width B (mm)
82.0000
Width B (in)
3.2283
Overall width T (mm)
87
Overall width T (in)
3.4252
Cup width C (mm)
71
Cup width C (in)
2.7953
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
270000
Basic static load rating Cor (lbs)
569000
Limiting speed - grease (rpm)
550
Limiting speed - oil (rpm)
740
Weight
Weight (kg)
49.51
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.12
Shaft shoulder da min (in)
16.024
Housing shoulder Da max (in)
19.764
Shaft shoulder db max (in)
16.024
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 100 rpm
4
300,255
102
16,932
6
200,170
392
65,416
8
150,127
1,024
170,667
10
120,102
2,154
359,072
15
80,068
8,323
1,387,244
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,201,020 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.
