6328NSKBall

Name: NSK 6328 Ball Bearing
Brand: NSK
SKU: 6328

6328 is a NSK ball bearing, bore 140 mm, O.D. 300 mm, width 62 mm, dynamic rating 56,800 lbs. Dimensions, drawing, interchanges and price.

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Bore d140mm

Outside dia. D300mm

Width B62mm

Dynamic Cr56,800lbs

Static C0r55,300lbs

Limiting speed2,000rpm

Weight21.999kg

Cr / C0r1.03

Mean dia. dm220mm

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	140	5.5118
D	Outside diameter	300	11.811
B	Inner-ring / bearing width	62	2.4409
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)	140
Bore d (in)	5.5118
Outside dia. D (mm)	300
Outside dia. D (in)	11.8110
Width B (mm)	62
Width B (in)	2.4409

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	56800
Basic static load rating Cor (lbs)	55300
Limiting speed - grease (rpm)	2,000
Limiting speed - oil (rpm)	2,400
Factor f0	13.6

Weight

Weight (kg)	21.999

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.118
Shaft shoulder da min (in)	6.220
Shaft shoulder da max (in)	7.368
Housing shoulder Da max (in)	11.102

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 600 rpm
4	63,165	64	1,778
6	42,110	216	6,000
8	31,582	512	14,222
10	25,266	1,000	27,778
15	16,844	3,375	93,750

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 252,659 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
6328-M	FAG	Ball	140	300	62	270 kN	21.767
QJ328-N2-MPA	FAG	Ball	140	300	62	470 kN	23.2
N328-E-M1	FAG	Cylindrical Roller	140	300	62	790 kN	22.5
N328-E-XL-M1	FAG	Cylindrical Roller	140	300	62	790 kN	22.5
NJ328-E-TVP2	FAG	Cylindrical Roller	140	300	62	790 kN	20.5
NJ328-E-XL-TVP2	FAG	Cylindrical Roller	140	300	62	790 kN	20.5
NU328-E-TVP2	FAG	Cylindrical Roller	140	300	62	790 kN	20.1
NU328-E-XL-TVP2	FAG	Cylindrical Roller	140	300	62	790 kN	20.1
NUP328-E-TVP2	FAG	Cylindrical Roller	140	300	62	790 kN	20.8
NUP328-E-XL-TVP2	FAG	Cylindrical Roller	140	300	62	790 kN	20.8

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
7328B	NSK	Ball	140	300	62	62,000 lbs	21.273
328	NSK	Cylindrical Roller	140	300	62	123,000 lbs	19.051
NU328E	NSK	Cylindrical Roller	140	300	62	815 kN	22.8
30328	NSK	Tapered Roller	140	300	62	135,000 lbs	20.103
HR30328	NSK	Tapered Roller	140	300	62	910 kN	21.1
HR31328J	NSK	Tapered Roller	140	300	62	124,800 lbs	23.224
7328	NSK	Precision / Angular Contact	140	300	62	330 kN	21.4

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
6028	NSK	Ball	140	210	33	24,700 lbs	3.91
6228	NSK	Ball	140	250	42	37,400 lbs	8.89
6828	NSK	Ball	140	175	18	8,580 lbs	0.812
6928	NSK	Ball	140	190	24	15,000 lbs	1.637
7228B	NSK	Ball	140	250	42	44,300 lbs	8.8
7328B	NSK	Ball	140	300	62	62,000 lbs	21.273

Request a quotation for 6328

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