HR31322J is a NSK tapered roller bearing, bore 110 mm, O.D. 240 mm, width 50 mm, dynamic rating 76,400 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
110
4.3307
D
Outside diameter
240
9.4488
B
Inner-ring / bearing width
50
1.9685
T
Overall assembly width
54.5
2.1457
C
Cup / outer-ring width
36
1.4173
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)
110
Bore d (in)
4.3307
Outside dia. D (mm)
240
Outside dia. D (in)
9.4488
Width B (mm)
50
Width B (in)
1.9685
Overall width T (mm)
54.5
Overall width T (in)
2.1457
Cup width C (mm)
36
Cup width C (in)
1.4173
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
76400
Basic static load rating Cor (lbs)
136000
Limiting speed - grease (rpm)
1,560
Limiting speed - oil (rpm)
2,110
Weight
Weight (kg)
12.256
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.10
Shaft shoulder da min (in)
5.039
Housing shoulder Da max (in)
8.898
Shaft shoulder db max (in)
8.898
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
84,961
102
3,386
6
56,641
392
13,083
8
42,481
1,024
34,133
10
33,984
2,154
71,814
15
22,656
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 339,844 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.
