QJ1038-N2-MPAFAGBall

Name: FAG QJ1038-N2-MPA Ball Bearing
Brand: FAG
SKU: QJ1038-N2-MPA

QJ1038-N2-MPA is a FAG ball bearing, bore 190 mm, O.D. 290 mm, width 46 mm, dynamic rating 345 kN. Dimensions, drawing, interchanges and price.

Brass cage

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Bore d190mm

Outside dia. D290mm

Width B46mm

Dynamic Cr345kN

Static C0r540kN

Limiting speed3,900rpm

Weight11.4kg

Cr / C0r0.64

Mean dia. dm240mm

Original catalogue drawing - FAG Schaeffler HR 1, page 364

QJ1038-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	190	7.4803
D	Outside diameter	290	11.4173
B	Inner-ring / bearing width	46	1.811
r	Chamfer (min)	2.1	0.0827

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)	190
Outside dia. D (mm)	290
Width B (mm)	46
Inner-ring OD d1 (mm)	225.3
Inner-ring shoulder dia. D1 (mm)	256.2

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	77559
Basic static load rating Cor (lbs)	121397
Basic dynamic load rating Cr (N)	345000
Basic static load rating C0r (N)	540000
Fatigue limit load Cur (N)	19200
Limiting speed nG (rpm)	3,900
Reference speed nB (rpm)	2,010
Effective load centre a (mm)	168

Weight

Weight (kg)	11.4

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	2.1
Shaft shoulder da (mm)	200.2
Housing shoulder Da (mm)	279.8
Housing fillet ra max (mm)	2.1

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,300 rpm
4	86,250	64	821
6	57,500	216	2,769
8	43,125	512	6,564
10	34,500	1,000	12,821
15	23,000	3,375	43,269

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 345,000 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
6038	NSK	Ball	190	290	46	42,300 lbs	11.113
1038	NSK	Cylindrical Roller	190	290	46	81,400 lbs	10.433
NU1038	NSK	Cylindrical Roller	190	290	46	445 kN	10.7
7038A5	NSK	Precision / Angular Contact	190	290	46	45,000 lbs	11.204
7038C	NSK	Precision / Angular Contact	190	290	46	55,300 lbs	11.104

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
6038-M	FAG	Ball	190	290	46	216 kN	11.3
NU1038-M1	FAG	Cylindrical Roller	190	290	46	435 kN	10.9
NU1038-XL-M1	FAG	Cylindrical Roller	190	290	46	435 kN	10.9
B7038-C-T-P4S	FAG	Precision / Angular Contact	190	290	46	250 kN	9.18
B7038-E-T-P4S	FAG	Precision / Angular Contact	190	290	46	236 kN	9.15

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
16038	FAG	Ball	190	290	31	158 kN	7.04
6038-M	FAG	Ball	190	290	46	216 kN	11.3
61838	FAG	Ball	190	240	24	73 kN	2.24
61938	FAG	Ball	190	260	33	140 kN	4.39
6238-M	FAG	Ball	190	340	55	255 kN	22.6
6338-M	FAG	Ball	190	400	78	375 kN	50.4
QJ238-N2-MPA	FAG	Ball	190	340	55	455 kN	23.8
QJ338-N2-MPA	FAG	Ball	190	400	78	735 kN	52.1

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