Original catalogue drawing - NSK catalogue, page 77
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
140
5.5118
D
Outside diameter
300
11.811
B
Inner-ring / bearing width
102
4.0157
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)
140
Bore d (in)
5.5118
Outside dia. D (mm)
300
Outside dia. D (in)
11.8110
Width B (mm)
102
Width B (in)
4.0157
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
260000
Basic static load rating Cor (lbs)
360000
Limiting speed - grease (rpm)
1,200
Limiting speed - oil (rpm)
1,500
Weight
Weight (kg)
35.085
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.118
Shaft shoulder da min (in)
6.22
Shaft shoulder da max (in)
7.00
Housing shoulder Da min (in)
9.94
Housing shoulder Da max (in)
11.10
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 400 rpm
4
289,134
102
4,233
6
192,756
392
16,354
8
144,567
1,024
42,667
10
115,654
2,154
89,768
15
77,103
8,323
346,811
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,156,538 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.79 (dimensions) / p.80 (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.
