HR33021NSKTapered Roller

Name: NSK HR33021 Tapered Roller Bearing
Brand: NSK
SKU: HR33021

HR33021 is a NSK tapered roller bearing, bore 105 mm, O.D. 160 mm, width 43 mm, dynamic rating 315 kN. Dimensions, drawing, interchanges and price.

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Bore d105mm

Outside dia. D160mm

Width B43mm

Dynamic Cr315kN

Static C0r435kN

Limiting speed2,000rpm

Weight3.03kg

Cr / C0r0.72

Mean dia. dm132.5mm

Original catalogue drawing - NSK E1103, page 267

HR33021 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	105	4.1339
D	Outside diameter	160	6.2992
B	Inner-ring / bearing width	43	1.6929
T	Overall assembly width	43	1.6929
C	Cup / outer-ring width	34	1.3386
r	Chamfer (min)	2	0.0787

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)	105
Outside dia. D (mm)	160
Width B (mm)	43
Overall width T (mm)	43
Cup width C (mm)	34

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	70815
Basic static load rating Cor (lbs)	97792
Basic dynamic load rating Cr (N)	315000
Basic static load rating C0r (N)	435000
Limiting speed - grease (rpm)	2,000
Effective load centre a (mm)	2.5

Weight

Weight (kg)	3.03

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	2

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 600 rpm
4	78,750	102	2,822
6	52,500	392	10,903
8	39,375	1,024	28,444
10	31,500	2,154	59,845
15	21,000	8,323	231,207

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 315,000 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.267 (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
33021	FAG	Tapered Roller	105	160	43	265 kN	3.34
33021	Timken	Tapered Roller	105	160	43	291 kN	2.94
X33021M/Y33021M	Timken	Tapered Roller	105	160	43	-	-

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
HR33021J	NSK	Tapered Roller	105	160	43	57,600 lbs	3.03

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
HR30221	NSK	Tapered Roller	105	190	36	345 kN	4.51
HR30221J	NSK	Tapered Roller	105	190	36	62,900 lbs	4.509
HR30321	NSK	Tapered Roller	105	225	49	560 kN	9.52
HR30321J	NSK	Tapered Roller	105	225	49	102,000 lbs	9.525
HR31321	NSK	Tapered Roller	105	225	53	510 kN	10
HR31321J	NSK	Tapered Roller	105	225	49	76,400 lbs	10.043
HR32021	NSK	Tapered Roller	105	160	35	250 kN	2.48
HR32021XJ	NSK	Tapered Roller	105	160	35	204,000 lbs	2.481

Request a quotation for HR33021

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