HR32056NSKTapered Roller

Name: NSK HR32056 Tapered Roller Bearing
Brand: NSK
SKU: HR32056

HR32056 is a NSK tapered roller bearing, bore 280 mm, O.D. 420 mm, width 87 mm, dynamic rating 1450 kN. Dimensions, drawing, interchanges and price.

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Bore d280mm

Outside dia. D420mm

Width B87mm

Dynamic Cr1450kN

Static C0r2240kN

Limiting speed710rpm

Weight40.6kg

Cr / C0r0.65

Mean dia. dm350mm

Original catalogue drawing - NSK E1103, page 270

HR32056 NSK Tapered Roller bearing catalogue drawing

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	280	11.0236
D	Outside diameter	420	16.5354
B	Inner-ring / bearing width	87	3.4252
T	Overall assembly width	87	3.4252
C	Cup / outer-ring width	65	2.5591
r	Chamfer (min)	4	0.1575

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)	280
Outside dia. D (mm)	420
Width B (mm)	87
Overall width T (mm)	87
Cup width C (mm)	65

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	325973
Basic static load rating Cor (lbs)	503572
Basic dynamic load rating Cr (N)	1450000
Basic static load rating C0r (N)	2240000
Limiting speed - grease (rpm)	710
Effective load centre a (mm)	5

Weight

Weight (kg)	40.6

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	4

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 200 rpm
4	362,500	102	8,466
6	241,667	392	32,708
8	181,250	1,024	85,333
10	145,000	2,154	179,536
15	96,667	8,323	693,622

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 1,450,000 N. Hours = L₁₀ x 10⁶ / (60n). Life-modification factors for lubrication, contamination and temperature (a_ISO) are not included.

Source & traceability

Brand	NSK
Source catalogue	NSK CAT. No. E1103 (metric)
Catalogue page	p.270 (dimensions)

Load ratings in newtons, weights in kg, limiting speeds for grease and oil lubrication.

Interchange - same dimensions, other brands

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
32056-X	FAG	Tapered Roller	280	420	87	1210 kN	40.5
32056-X-XL	FAG	Tapered Roller	280	420	87	1420 kN	40.8
32056X	Timken	Tapered Roller	280	420	87	1380 kN	40.3

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
HR32056XJ	NSK	Tapered Roller	280	420	87	1,180,000 lbs	40.606

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
30256	NSK	Tapered Roller	280	500	80	279,000 lbs	66.311
32256	NSK	Tapered Roller	280	500	130	438,000 lbs	109.234
32356	NSK	Tapered Roller	280	580	175	4050 kN	224
HR32056XJ	NSK	Tapered Roller	280	420	87	1,180,000 lbs	40.606
HR32956	NSK	Tapered Roller	280	380	63.5	945 kN	20
HR32956J	NSK	Tapered Roller	280	380	63.5	172,000 lbs	20.003

Request a quotation for HR32056

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