HR33011NSKTapered Roller

Name: NSK HR33011 Tapered Roller Bearing
Brand: NSK
SKU: HR33011

HR33011 is a NSK tapered roller bearing, bore 55 mm, O.D. 90 mm, width 27 mm, dynamic rating 112 kN. Dimensions, drawing, interchanges and price.

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Bore d55mm

Outside dia. D90mm

Width B27mm

Dynamic Cr112kN

Static C0r138kN

Limiting speed3,800rpm

Weight0.657kg

Cr / C0r0.81

Mean dia. dm72.5mm

Original catalogue drawing - NSK E1103, page 264

HR33011 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	90	3.5433
B	Inner-ring / bearing width	27	1.063
T	Overall assembly width	27	1.063
C	Cup / outer-ring width	21	0.8268
r	Chamfer (min)	1.5	0.0591

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
Outside dia. D (mm)	90
Width B (mm)	27
Overall width T (mm)	27
Cup width C (mm)	21

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	25179
Basic static load rating Cor (lbs)	31024
Basic dynamic load rating Cr (N)	112000
Basic static load rating C0r (N)	138000
Limiting speed - grease (rpm)	3,800
Effective load centre a (mm)	1.5

Weight

Weight (kg)	0.657

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	1.5

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,200 rpm
4	28,000	102	1,411
6	18,667	392	5,451
8	14,000	1,024	14,222
10	11,200	2,154	29,923
15	7,467	8,323	115,604

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 112,000 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.264 (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
33011	FAG	Tapered Roller	55	90	27	93 kN	0.673
33011	Timken	Tapered Roller	55	90	27	99.5 kN	0.66
X33011/Y33011	Timken	Tapered Roller	55	90	27	-	-

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
HR33011J	NSK	Tapered Roller	55	90	27	20,600 lbs	0.658

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 HR33011

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