Original catalogue drawing - NSK catalogue, page 37
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
190
7.4803
D
Outside diameter
340
13.3858
B
Inner-ring / bearing width
55
2.1654
r
Chamfer (min)
2.997
0.118
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)
190
Bore d (in)
7.4803
Outside dia. D (mm)
340
Outside dia. D (in)
13.3858
Width B (mm)
55
Width B (in)
2.1654
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
63700
Basic static load rating Cor (lbs)
83800
Limiting speed - grease (rpm)
1,400
Limiting speed - oil (rpm)
2,000
Weight
Weight (kg)
21.319
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.118
Shaft shoulder da min (in)
8.190
Housing shoulder Da max (in)
12.677
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 400 rpm
4
70,838
64
2,667
6
47,225
216
9,000
8
35,419
512
21,333
10
28,335
1,000
41,667
15
18,890
3,375
140,625
Basic rating life per ISO 281: L10 = (C/P)3 with C = 283,352 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.39 (dimensions) / p.40 (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.
