HR31314J is a NSK tapered roller bearing, bore 70 mm, O.D. 150 mm, width 35 mm, dynamic rating 43,200 lbs. Dimensions, drawing, interchanges and price.
Original catalogue drawing - NSK catalogue, page 109
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
70
2.7559
D
Outside diameter
150
5.9055
B
Inner-ring / bearing width
35
1.378
T
Overall assembly width
38
1.4961
C
Cup / outer-ring width
25
0.9843
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)
70
Bore d (in)
2.7559
Outside dia. D (mm)
150
Outside dia. D (in)
5.9055
Width B (mm)
35
Width B (in)
1.3780
Overall width T (mm)
38
Overall width T (in)
1.4961
Cup width C (mm)
25
Cup width C (in)
0.9843
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
43200
Basic static load rating Cor (lbs)
51500
Limiting speed - grease (rpm)
2,570
Limiting speed - oil (rpm)
3,490
Weight
Weight (kg)
2.939
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.08
Shaft shoulder da min (in)
3.346
Housing shoulder Da max (in)
5.433
Shaft shoulder db max (in)
3.366
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 800 rpm
4
48,041
102
2,117
6
32,027
392
8,177
8
24,020
1,024
21,333
10
19,216
2,154
44,884
15
12,811
8,323
173,406
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 192,163 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.111 (dimensions) / p.112 (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.
