HR31315J is a NSK tapered roller bearing, bore 75 mm, O.D. 160 mm, width 37 mm, dynamic rating 47,400 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
75
2.9528
D
Outside diameter
160
6.2992
B
Inner-ring / bearing width
37
1.4567
T
Overall assembly width
40
1.5748
C
Cup / outer-ring width
26
1.0236
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)
160
Outside dia. D (in)
6.2992
Width B (mm)
37
Width B (in)
1.4567
Overall width T (mm)
40
Overall width T (in)
1.5748
Cup width C (mm)
26
Cup width C (in)
1.0236
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
47400
Basic static load rating Cor (lbs)
56400
Limiting speed - grease (rpm)
2,390
Limiting speed - oil (rpm)
3,250
Weight
Weight (kg)
3.475
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.08
Shaft shoulder da min (in)
3.543
Housing shoulder Da max (in)
5.827
Shaft shoulder db max (in)
3.618
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 700 rpm
4
52,711
102
2,419
6
35,141
392
9,345
8
26,356
1,024
24,381
10
21,085
2,154
51,296
15
14,056
8,323
198,178
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 210,846 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.
