30330NSKTapered Roller

Name: NSK 30330 Tapered Roller Bearing
Brand: NSK
SKU: 30330

30330 is a NSK tapered roller bearing, bore 150 mm, O.D. 320 mm, width 65 mm, dynamic rating 155,000 lbs. Dimensions, drawing, interchanges and price.

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Bore d150mm

Outside dia. D320mm

Width B65mm

Dynamic Cr155,000lbs

Static C0r193,000lbs

Limiting speed1,100rpm

Weight24.204kg

Cr / C0r0.8

Mean dia. dm235mm

Original catalogue drawing - NSK catalogue, page 107

30330 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	150	5.9055
D	Outside diameter	320	12.5984
B	Inner-ring / bearing width	65	2.5591
T	Overall assembly width	72	2.8346
C	Cup / outer-ring width	55	2.1654

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)	150
Bore d (in)	5.9055
Outside dia. D (mm)	320
Outside dia. D (in)	12.5984
Width B (mm)	65
Width B (in)	2.5591
Overall width T (mm)	72
Overall width T (in)	2.8346
Cup width C (mm)	55
Cup width C (in)	2.1654

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	155000
Basic static load rating Cor (lbs)	193000
Limiting speed - grease (rpm)	1,100
Limiting speed - oil (rpm)	1,500

Weight

Weight (kg)	24.204

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.12
Shaft shoulder da min (in)	6.969
Housing shoulder Da max (in)	11.890
Shaft shoulder db max (in)	7.598

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 300 rpm
4	172,369	102	5,644
6	114,912	392	21,805
8	86,184	1,024	56,889
10	68,947	2,154	119,691
15	45,965	8,323	462,415

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 689,474 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.109 (dimensions) / p.110 (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
6330	FAG	Ball	150	320	65	300 kN	22.4
6330-M	FAG	Ball	150	320	65	280 kN	26.5
QJ330-N2-MPA	FAG	Ball	150	320	65	510 kN	28
N330-E-M1	FAG	Cylindrical Roller	150	320	65	900 kN	26.8
N330-E-XL-M1	FAG	Cylindrical Roller	150	320	65	900 kN	26.9
NJ330-E-M1	FAG	Cylindrical Roller	150	320	65	900 kN	27.2
NJ330-E-XL-M1	FAG	Cylindrical Roller	150	320	65	900 kN	27.4
NU330-E-M1	FAG	Cylindrical Roller	150	320	65	900 kN	26.8
NU330-E-XL-M1	FAG	Cylindrical Roller	150	320	65	900 kN	27
NUP330-E-M1	FAG	Cylindrical Roller	150	320	65	900 kN	27.7

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
6330	NSK	Ball	150	320	65	61,700 lbs	25.991
7330B	NSK	Ball	150	320	65	64,800 lbs	25.31
330	NSK	Cylindrical Roller	150	320	65	133,000 lbs	26.308
NU330E	NSK	Cylindrical Roller	150	320	65	930 kN	27.1
HR30330	NSK	Tapered Roller	150	320	65	1020 kN	25
HR31330J	NSK	Tapered Roller	150	320	65	137,100 lbs	28.477
7330	NSK	Precision / Angular Contact	150	320	65	350 kN	26

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
30230	NSK	Tapered Roller	150	270	45	97,800 lbs	10.7
32330	NSK	Tapered Roller	150	320	108	252,000 lbs	41.408
32930	NSK	Tapered Roller	150	210	36	305 kN	3.8
HR30330	NSK	Tapered Roller	150	320	65	1020 kN	25
HR31330	NSK	Tapered Roller	150	320	75	975 kN	28.5
HR31330J	NSK	Tapered Roller	150	320	65	137,100 lbs	28.477
HR32030	NSK	Tapered Roller	150	225	48	460 kN	6.6
HR32030XJ	NSK	Tapered Roller	150	225	48	375,000 lbs	6.6

Request a quotation for 30330

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