HR31316J is a NSK tapered roller bearing, bore 80 mm, O.D. 170 mm, width 39 mm, dynamic rating 52,800 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
80
3.1496
D
Outside diameter
170
6.6929
B
Inner-ring / bearing width
39
1.5354
T
Overall assembly width
42.5
1.6732
C
Cup / outer-ring width
27
1.063
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)
80
Bore d (in)
3.1496
Outside dia. D (mm)
170
Outside dia. D (in)
6.6929
Width B (mm)
39
Width B (in)
1.5354
Overall width T (mm)
42.5
Overall width T (in)
1.6732
Cup width C (mm)
27
Cup width C (in)
1.0630
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
52800
Basic static load rating Cor (lbs)
63600
Limiting speed - grease (rpm)
2,250
Limiting speed - oil (rpm)
3,060
Weight
Weight (kg)
4.064
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.08
Shaft shoulder da min (in)
3.740
Housing shoulder Da max (in)
6.220
Shaft shoulder db max (in)
3.823
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 700 rpm
4
58,717
102
2,419
6
39,144
392
9,345
8
29,358
1,024
24,381
10
23,487
2,154
51,296
15
15,658
8,323
198,178
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 234,866 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.
