Original catalogue drawing - NSK catalogue, page 111
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
320
12.5984
D
Outside diameter
480
18.8976
B
Inner-ring / bearing width
100
3.937
T
Overall assembly width
100
3.937
C
Cup / outer-ring width
74
2.9134
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)
320
Bore d (in)
12.5984
Outside dia. D (mm)
480
Outside dia. D (in)
18.8976
Width B (mm)
100
Width B (in)
3.9370
Overall width T (mm)
100
Overall width T (in)
3.9370
Cup width C (mm)
74
Cup width C (in)
2.9134
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
1510000
Basic static load rating Cor (lbs)
654000
Limiting speed - grease (rpm)
630
Limiting speed - oil (rpm)
850
Weight
Weight (kg)
60.01
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.12
Shaft shoulder da min (in)
13.661
Housing shoulder Da max (in)
18.189
Shaft shoulder db max (in)
13.780
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 200 rpm
4
1,679,204
102
8,466
6
1,119,469
392
32,708
8
839,602
1,024
85,333
10
671,681
2,154
179,536
15
447,788
8,323
693,622
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 6,716,815 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.113 (dimensions) / p.114 (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.
