HR320/28XJ is a NSK tapered roller bearing, bore 28 mm, O.D. 52 mm, width 16 mm, dynamic rating 32,000 lbs. Dimensions, drawing, interchanges and price.
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
28
1.1024
D
Outside diameter
52
2.0472
B
Inner-ring / bearing width
16
0.6299
T
Overall assembly width
16
0.6299
C
Cup / outer-ring width
12
0.4724
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)
28
Bore d (in)
1.1024
Outside dia. D (mm)
52
Outside dia. D (in)
2.0472
Width B (mm)
16
Width B (in)
0.6299
Overall width T (mm)
16
Overall width T (in)
0.6299
Cup width C (mm)
12
Cup width C (in)
0.4724
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
32000
Basic static load rating Cor (lbs)
8770
Limiting speed - grease (rpm)
7,100
Limiting speed - oil (rpm)
9,500
Weight
Weight (kg)
0.145
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.04
Shaft shoulder da min (in)
1.457
Housing shoulder Da max (in)
1.811
Shaft shoulder db max (in)
1.299
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 2,300 rpm
4
35,586
102
736
6
23,724
392
2,844
8
17,793
1,024
7,420
10
14,234
2,154
15,612
15
9,490
8,323
60,315
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 142,343 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.
