6330NSKBall

Name: NSK 6330 Ball Bearing
Brand: NSK
SKU: 6330

6330 is a NSK ball bearing, bore 150 mm, O.D. 320 mm, width 65 mm, dynamic rating 61,700 lbs. Dimensions, drawing, interchanges and price.

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Bore d150mm

Outside dia. D320mm

Width B65mm

Dynamic Cr61,700lbs

Static C0r63,800lbs

Limiting speed1,800rpm

Weight25.991kg

Cr / C0r0.97

Mean dia. dm235mm

Original catalogue drawing - NSK catalogue, page 19

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
r	Chamfer (min)	2.997	0.118

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

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	61700
Basic static load rating Cor (lbs)	63800
Limiting speed - grease (rpm)	1,800
Limiting speed - oil (rpm)	2,200
Factor f0	13.9

Weight

Weight (kg)	25.991

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.118
Shaft shoulder da min (in)	6.614
Shaft shoulder da max (in)	7.998
Housing shoulder Da max (in)	11.890

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 600 rpm
4	68,614	64	1,778
6	45,743	216	6,000
8	34,307	512	14,222
10	27,446	1,000	27,778
15	18,297	3,375	93,750

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 274,455 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.21 (dimensions) / p.22 (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
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
30330	NSK	Tapered Roller	150	320	65	155,000 lbs	24.204
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
16030	NSK	Ball	150	225	24	92.5 kN	3.62
6030	NSK	Ball	150	225	35	28,200 lbs	4.808
6230	NSK	Ball	150	270	45	39,600 lbs	11.476
6830	NSK	Ball	150	190	20	10,700 lbs	1.129
6930	NSK	Ball	150	210	28	19,000 lbs	2.976
7230B	NSK	Ball	150	270	45	50,500 lbs	10.977
7330B	NSK	Ball	150	320	65	64,800 lbs	25.31

Request a quotation for 6330

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