QJ236-N2-MPAFAGBall

Name: FAG QJ236-N2-MPA Ball Bearing
Brand: FAG
SKU: QJ236-N2-MPA

QJ236-N2-MPA is a FAG ball bearing, bore 180 mm, O.D. 320 mm, width 52 mm, dynamic rating 435 kN. Dimensions, drawing, interchanges and price.

Brass cage

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Bore d180mm

Outside dia. D320mm

Width B52mm

Dynamic Cr435kN

Static C0r680kN

Limiting speed3,600rpm

Weight19.6kg

Cr / C0r0.64

Mean dia. dm250mm

Original catalogue drawing - FAG Schaeffler HR 1, page 364

QJ236-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	320	12.5984
B	Inner-ring / bearing width	52	2.0472
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)	320
Width B (mm)	52
Inner-ring OD d1 (mm)	231
Inner-ring shoulder dia. D1 (mm)	269

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	97792
Basic static load rating Cor (lbs)	152870
Basic dynamic load rating Cr (N)	435000
Basic static load rating C0r (N)	680000
Fatigue limit load Cur (N)	23900
Limiting speed nG (rpm)	3,600
Reference speed nB (rpm)	1,870
Effective load centre a (mm)	175

Weight

Weight (kg)	19.6

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	4
Shaft shoulder da (mm)	197
Housing shoulder Da (mm)	303
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 1,200 rpm
4	108,750	64	889
6	72,500	216	3,000
8	54,375	512	7,111
10	43,500	1,000	13,889
15	29,000	3,375	46,875

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 435,000 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
6236	NSK	Ball	180	320	52	51,100 lbs	15.767
7236B	NSK	Ball	180	320	52	62,000 lbs	17.69
236	NSK	Cylindrical Roller	180	320	52	111,000 lbs	19.051
NU236E	NSK	Cylindrical Roller	180	320	52	770 kN	19
30236	NSK	Tapered Roller	180	320	52	117,000 lbs	16.601
HR30236	NSK	Tapered Roller	180	320	52	800 kN	17.8
7236	NSK	Precision / Angular Contact	180	320	52	335 kN	18.1
7236A5	NSK	Precision / Angular Contact	180	320	52	71,700 lbs	17.903
7236C	NSK	Precision / Angular Contact	180	320	52	75,000 lbs	17.804
30236	Timken	Tapered Roller	180	320	52	690 kN	17.95

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
6236-M	FAG	Ball	180	320	52	240 kN	18.744
N236-E-XL-M1	FAG	Cylindrical Roller	180	320	52	730 kN	18.9
NJ236-E-M1	FAG	Cylindrical Roller	180	320	52	730 kN	19.2
NJ236-E-XL-M1	FAG	Cylindrical Roller	180	320	52	730 kN	19.2
NU236-E-M1	FAG	Cylindrical Roller	180	320	52	730 kN	18.9
NU236-E-XL-M1	FAG	Cylindrical Roller	180	320	52	730 kN	18.9
NUP236-E-M1	FAG	Cylindrical Roller	180	320	52	730 kN	17.3
NUP236-E-XL-M1	FAG	Cylindrical Roller	180	320	52	730 kN	17.3

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
QJ336-N2-MPA	FAG	Ball	180	380	75	680 kN	44.9

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