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
75
2.9528
D
Outside diameter
115
4.5276
B
Inner-ring / bearing width
25
0.9843
T
Overall assembly width
25
0.9843
C
Cup / outer-ring width
19
0.748
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)
75
Bore d (in)
2.9528
Outside dia. D (mm)
115
Outside dia. D (in)
4.5276
Width B (mm)
25
Width B (in)
0.9843
Overall width T (mm)
25
Overall width T (in)
0.9843
Cup width C (mm)
19
Cup width C (in)
0.7480
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
109000
Basic static load rating Cor (lbs)
38400
Limiting speed - grease (rpm)
3,000
Limiting speed - oil (rpm)
4,000
Weight
Weight (kg)
0.925
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.06
Shaft shoulder da min (in)
3.386
Housing shoulder Da max (in)
4.173
Shaft shoulder db max (in)
3.228
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 1,000 rpm
4
121,214
102
1,693
6
80,809
392
6,542
8
60,607
1,024
17,067
10
48,486
2,154
35,907
15
32,324
8,323
138,724
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 484,856 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.
