HR32911JNSKTapered Roller

Name: NSK HR32911J Tapered Roller Bearing
Brand: NSK
SKU: HR32911J

HR32911J is a NSK tapered roller bearing, bore 55 mm, O.D. 80 mm, width 17 mm, dynamic rating 10,200 lbs. Dimensions, drawing, interchanges and price.

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Bore d55mm

Outside dia. D80mm

Width B17mm

Dynamic Cr10,200lbs

Static C0r16,700lbs

Limiting speed4,300rpm

Weight0.281kg

Cr / C0r0.61

Mean dia. dm67.5mm

Original catalogue drawing - NSK catalogue, page 117

HR32911J 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	55	2.1654
D	Outside diameter	80	3.1496
B	Inner-ring / bearing width	17	0.6693
T	Overall assembly width	17	0.6693
C	Cup / outer-ring width	14	0.5512

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)	55
Bore d (in)	2.1654
Outside dia. D (mm)	80
Outside dia. D (in)	3.1496
Width B (mm)	17.0000
Width B (in)	0.6693
Overall width T (mm)	17
Overall width T (in)	0.6693
Cup width C (mm)	14
Cup width C (in)	0.5512

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	10200
Basic static load rating Cor (lbs)	16700
Limiting speed - grease (rpm)	4,300
Limiting speed - oil (rpm)	5,600

Weight

Weight (kg)	0.281

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.04
Shaft shoulder da min (in)	2.520
Housing shoulder Da max (in)	2.913
Shaft shoulder db max (in)	0.099

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,400 rpm
4	11,343	102	1,209
6	7,562	392	4,673
8	5,671	1,024	12,190
10	4,537	2,154	25,648
15	3,025	8,323	99,089

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 45,372 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 inch product catalogue
Catalogue page	p.119 (dimensions) / p.120 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Interchange - same dimensions, other brands

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
32911	FAG	Tapered Roller	55	80	17	46.5 kN	0.304

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
HR32911	NSK	Tapered Roller	55	80	17	55.5 kN	0.282

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
HR30211	NSK	Tapered Roller	55	100	21	116 kN	0.736
HR30211J	NSK	Tapered Roller	55	100	21	21,200 lbs	0.735
HR30311	NSK	Tapered Roller	55	120	29	184 kN	1.63
HR30311J	NSK	Tapered Roller	55	120	29	33,700 lbs	1.628
HR31311	NSK	Tapered Roller	55	120	29	161 kN	1.58
HR31311J	NSK	Tapered Roller	55	120	29	29,400 lbs	1.579
HR32011	NSK	Tapered Roller	55	90	23	100 kN	0.568
HR32011XJ	NSK	Tapered Roller	55	90	23	81,500 lbs	0.567

Request a quotation for HR32911J

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