QJ336-N2-MPAFAGBall

Name: FAG QJ336-N2-MPA Ball Bearing
Brand: FAG
SKU: QJ336-N2-MPA

QJ336-N2-MPA is a FAG ball bearing, bore 180 mm, O.D. 380 mm, width 75 mm, dynamic rating 680 kN. Dimensions, drawing, interchanges and price.

Brass cage

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Bore d180mm

Outside dia. D380mm

Width B75mm

Dynamic Cr680kN

Static C0r1080kN

Limiting speed3,000rpm

Weight44.9kg

Cr / C0r0.63

Mean dia. dm280mm

Original catalogue drawing - FAG Schaeffler HR 1, page 322

QJ336-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	180	7.0866
D	Outside diameter	380	14.9606
B	Inner-ring / bearing width	75	2.9528
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)	180
Outside dia. D (mm)	380
Width B (mm)	75
Inner-ring OD d1 (mm)	249.1
Inner-ring shoulder dia. D1 (mm)	311

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	152870
Basic static load rating Cor (lbs)	242794
Basic dynamic load rating Cr (N)	680000
Basic static load rating C0r (N)	1.08e+06
Fatigue limit load Cur (N)	33000
Limiting speed nG (rpm)	3,000
Effective load centre a (mm)	196

Weight

Weight (kg)	44.9

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	4
Shaft shoulder da (mm)	197
Housing shoulder Da (mm)	363
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 1,000 rpm
4	170,000	64	1,067
6	113,333	216	3,600
8	85,000	512	8,533
10	68,000	1,000	16,667
15	45,333	3,375	56,250

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 680,000 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.322 (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
6336	NSK	Ball	180	380	75	79,600 lbs	44.452
7336B	NSK	Ball	180	380	75	83,800 lbs	41.005
336	NSK	Cylindrical Roller	180	380	75	202,000 lbs	43.091
NU336E	NSK	Cylindrical Roller	180	380	75	1210 kN	44
30336	NSK	Tapered Roller	180	380	75	210,000 lbs	39.308
7336	NSK	Precision / Angular Contact	180	380	75	450 kN	42.1

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
6336-M	FAG	Ball	180	380	75	355 kN	43
NJ336-E-M1	FAG	Cylindrical Roller	180	380	75	1040 kN	44.6
NJ336-E-TB-M1	FAG	Cylindrical Roller	180	380	75	1040 kN	44.6
NU336-E-M1	FAG	Cylindrical Roller	180	380	75	1040 kN	43.9
NU336-E-TB-M1	FAG	Cylindrical Roller	180	380	75	1040 kN	43.9
30336	FAG	Tapered Roller	180	380	75	1120 kN	40.9

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
16036	FAG	Ball	180	280	31	140 kN	6.92
6036-M	FAG	Ball	180	280	46	201 kN	10.6
61836	FAG	Ball	180	225	22	66 kN	1.71
61936	FAG	Ball	180	250	33	131 kN	4.22
6236-M	FAG	Ball	180	320	52	240 kN	18.744
6336-M	FAG	Ball	180	380	75	355 kN	43
QJ1036-N2-MPA	FAG	Ball	180	280	46	340 kN	11.42
QJ236-N2-MPA	FAG	Ball	180	320	52	435 kN	19.6

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