QJ328-N2-MPAFAGBall

Name: FAG QJ328-N2-MPA Ball Bearing
Brand: FAG
SKU: QJ328-N2-MPA

QJ328-N2-MPA is a FAG ball bearing, bore 140 mm, O.D. 300 mm, width 62 mm, dynamic rating 470 kN. Dimensions, drawing, interchanges and price.

Brass cage

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Bore d140mm

Outside dia. D300mm

Width B62mm

Dynamic Cr470kN

Static C0r660kN

Limiting speed3,900rpm

Weight23.2kg

Cr / C0r0.71

Mean dia. dm220mm

Original catalogue drawing - FAG Schaeffler HR 1, page 364

QJ328-N2-MPA FAG Ball 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	140	5.5118
D	Outside diameter	300	11.811
B	Inner-ring / bearing width	62	2.4409
r	Chamfer (min)	4	0.1575

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
Outside dia. D (mm)	300
Width B (mm)	62
Inner-ring OD d1 (mm)	197.5
Inner-ring shoulder dia. D1 (mm)	243

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	105660
Basic static load rating Cor (lbs)	148374
Basic dynamic load rating Cr (N)	470000
Basic static load rating C0r (N)	660000
Fatigue limit load Cur (N)	24900
Limiting speed nG (rpm)	3,900
Reference speed nB (rpm)	2,030
Effective load centre a (mm)	154

Weight

Weight (kg)	23.2

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	4
Shaft shoulder da (mm)	157
Housing shoulder Da (mm)	283
Housing fillet ra max (mm)	3

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,300 rpm
4	117,500	64	821
6	78,333	216	2,769
8	58,750	512	6,564
10	47,000	1,000	12,821
15	31,333	3,375	43,269

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 470,000 N. Hours = L₁₀ x 10⁶ / (60n). Life-modification factors for lubrication, contamination and temperature (a_ISO) are not included.

Source & traceability

Brand	FAG
Source catalogue	FAG / Schaeffler Rolling Bearings HR 1
Catalogue page	p.364 (dimensions)

Load ratings in newtons, fatigue limit load Cur, limiting speed nG and reference speed nB.

Interchange - same dimensions, other brands

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
6328	NSK	Ball	140	300	62	56,800 lbs	21.999
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

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
6328-M	FAG	Ball	140	300	62	270 kN	21.767
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

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1228-M	FAG	Ball	140	250	50	163 kN	11.2
16028	FAG	Ball	140	210	22	86 kN	2.55
6028	FAG	Ball	140	210	33	117 kN	3.6
6028-2RSR	FAG	Ball	140	210	33	117 kN	3.58
6028-2Z	FAG	Ball	140	210	33	117 kN	3.56
61828-Y	FAG	Ball	140	175	18	41.5 kN	0.848
6228	FAG	Ball	140	250	42	188 kN	8.07
6328-M	FAG	Ball	140	300	62	270 kN	21.767

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