6334NSKBall

Name: NSK 6334 Ball Bearing
Brand: NSK
SKU: 6334

6334 is a NSK ball bearing, bore 170 mm, O.D. 360 mm, width 72 mm, dynamic rating 73,400 lbs. Dimensions, drawing, interchanges and price.

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Bore d170mm

Outside dia. D360mm

Width B72mm

Dynamic Cr73,400lbs

Static C0r79,800lbs

Limiting speed1,600rpm

Weight38.102kg

Cr / C0r0.92

Mean dia. dm265mm

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	170	6.6929
D	Outside diameter	360	14.1732
B	Inner-ring / bearing width	72	2.8346
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)	170
Bore d (in)	6.6929
Outside dia. D (mm)	360
Outside dia. D (in)	14.1732
Width B (mm)	72
Width B (in)	2.8346

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	73400
Basic static load rating Cor (lbs)	79800
Limiting speed - grease (rpm)	1,600
Limiting speed - oil (rpm)	2,000
Factor f0	13.6

Weight

Weight (kg)	38.102

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.118
Shaft shoulder da min (in)	7.402
Shaft shoulder da max (in)	-
Housing shoulder Da max (in)	13.465

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 500 rpm
4	81,625	64	2,133
6	54,417	216	7,200
8	40,812	512	17,067
10	32,650	1,000	33,333
15	21,767	3,375	112,500

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 326,499 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
6334-M	FAG	Ball	170	360	72	325 kN	37.3
QJ334-N2-MPA	FAG	Ball	170	360	72	585 kN	38.4
N334-E-M1	FAG	Cylindrical Roller	170	360	72	965 kN	37.9
N334-E-TB-M1	FAG	Cylindrical Roller	170	360	72	960 kN	37.9
NJ334-E-M1	FAG	Cylindrical Roller	170	360	72	965 kN	38.6
NJ334-E-TB-M1	FAG	Cylindrical Roller	170	360	72	960 kN	38.6
NU334-E-M1	FAG	Cylindrical Roller	170	360	72	965 kN	38
NU334-E-TB-M1	FAG	Cylindrical Roller	170	360	72	960 kN	38
30334-A	FAG	Tapered Roller	170	360	72	1040 kN	35.3
7334-B-MP	FAG	Precision / Angular Contact	170	360	72	405 kN	34.4

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
7334B	NSK	Ball	170	360	72	79,400 lbs	35.471
334	NSK	Cylindrical Roller	170	360	72	179,000 lbs	37.195
NU334E	NSK	Cylindrical Roller	170	360	72	1140 kN	37.9
30334	NSK	Tapered Roller	170	360	72	190,000 lbs	33.507
7334	NSK	Precision / Angular Contact	170	360	72	425 kN	35.8

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
16034	NSK	Ball	170	260	28	126 kN	5.71
6034	NSK	Ball	170	260	42	36,200 lbs	7.938
6234	NSK	Ball	170	310	52	47,700 lbs	15.567
6834	NSK	Ball	170	215	22	13,400 lbs	1.864
6934	NSK	Ball	170	230	28	19,300 lbs	3.302
7234B	NSK	Ball	170	310	52	60,000 lbs	17.01
7334B	NSK	Ball	170	360	72	79,400 lbs	35.471

Request a quotation for 6334

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