6324NSKBall

Name: NSK 6324 Ball Bearing
Brand: NSK
SKU: 6324

6324 is a NSK ball bearing, bore 120 mm, O.D. 260 mm, width 55 mm, dynamic rating 46,500 lbs. Dimensions, drawing, interchanges and price.

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Bore d120mm

Outside dia. D260mm

Width B55mm

Dynamic Cr46,500lbs

Static C0r41,500lbs

Limiting speed2,200rpm

Weight12.519kg

Cr / C0r1.12

Mean dia. dm190mm

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	120	4.7244
D	Outside diameter	260	10.2362
B	Inner-ring / bearing width	55	2.1654
r	Chamfer (min)	2.489	0.098

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)	120
Bore d (in)	4.7244
Outside dia. D (mm)	260
Outside dia. D (in)	10.2362
Width B (mm)	55
Width B (in)	2.1654

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	46500
Basic static load rating Cor (lbs)	41500
Limiting speed - grease (rpm)	2,200
Limiting speed - oil (rpm)	2,800
Factor f0	13.5

Weight

Weight (kg)	12.519

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.098
Shaft shoulder da min (in)	5.276
Shaft shoulder da max (in)	6.343
Housing shoulder Da max (in)	9.685

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 700 rpm
4	51,711	64	1,524
6	34,474	216	5,143
8	25,855	512	12,190
10	20,684	1,000	23,810
15	13,789	3,375	80,357

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 206,842 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
6324	FAG	Ball	120	260	55	225 kN	12.8
QJ324-N2-MPA	FAG	Ball	120	260	55	385 kN	15.6
N324-E-M1	FAG	Cylindrical Roller	120	260	55	610 kN	15.1
N324-E-XL-M1	FAG	Cylindrical Roller	120	260	55	610 kN	15.3
NJ324-E-TVP2	FAG	Cylindrical Roller	120	260	55	610 kN	13.5
NJ324-E-XL-TVP2	FAG	Cylindrical Roller	120	260	55	610 kN	13.5
NU324-E-TVP2	FAG	Cylindrical Roller	120	260	55	610 kN	13.3
NU324-E-XL-TVP2	FAG	Cylindrical Roller	120	260	55	610 kN	13.3
NUP324-E-TVP2	FAG	Cylindrical Roller	120	260	55	610 kN	13.8
NUP324-E-XL-TVP2	FAG	Cylindrical Roller	120	260	55	610 kN	13.8

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
7324B	NSK	Ball	120	260	55	50,700 lbs	14.288
324	NSK	Cylindrical Roller	120	260	55	101,000 lbs	13.154
NU324E	NSK	Cylindrical Roller	120	260	55	650 kN	15
HR30324	NSK	Tapered Roller	120	260	55	660 kN	13.9
HR30324J	NSK	Tapered Roller	120	260	55	120,000 lbs	13.921
7324	NSK	Precision / Angular Contact	120	260	55	271 kN	14.5

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
6024	NSK	Ball	120	180	28	19,900 lbs	2.422
6224	NSK	Ball	120	215	40	34,900 lbs	5.171
6824	NSK	Ball	120	150	16	6,490 lbs	0.526
6924	NSK	Ball	120	165	22	11,900 lbs	1.188
7224B	NSK	Ball	120	215	40	37,300 lbs	6.214
7324B	NSK	Ball	120	260	55	50,700 lbs	14.288

Request a quotation for 6324

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