QJ310-XL-MPAFAGBall

Name: FAG QJ310-XL-MPA Ball Bearing
Brand: FAG
SKU: QJ310-XL-MPA

QJ310-XL-MPA is a FAG ball bearing, bore 50 mm, O.D. 110 mm, width 27 mm, dynamic rating 115 kN. Dimensions, drawing, interchanges and price.

Brass cageX-life

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Bore d50mm

Outside dia. D110mm

Width B27mm

Dynamic Cr115kN

Static C0r92kN

Limiting speed11,300rpm

Weight1.39kg

Cr / C0r1.25

Mean dia. dm80mm

Original catalogue drawing - FAG Schaeffler HR 1, page 362

QJ310-XL-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	50	1.9685
D	Outside diameter	110	4.3307
B	Inner-ring / bearing width	27	1.063
r	Chamfer (min)	2	0.0787

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)	50
Outside dia. D (mm)	110
Width B (mm)	27
Inner-ring OD d1 (mm)	70.5
Inner-ring shoulder dia. D1 (mm)	89.6

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	25853
Basic static load rating Cor (lbs)	20682
Basic dynamic load rating Cr (N)	115000
Basic static load rating C0r (N)	92000
Fatigue limit load Cur (N)	6600
Limiting speed nG (rpm)	11,300
Effective load centre a (mm)	56

Weight

Weight (kg)	1.39

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	2
Shaft shoulder da (mm)	61
Housing shoulder Da (mm)	99
Housing fillet ra max (mm)	2

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 3,000 rpm
4	28,750	64	356
6	19,167	216	1,200
8	14,375	512	2,844
10	11,500	1,000	5,556
15	7,667	3,375	18,750

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 115,000 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.362 (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
1310	NSK	Ball	50	110	27	9,330 lbs	1.288
6310	NSK	Ball	50	110	27	13,900 lbs	1.098
7310B	NSK	Ball	50	110	27	14,400 lbs	1.148
BL310	NSK	Ball	50	110	27	17,200 lbs	1.139
310	NSK	Cylindrical Roller	50	110	27	19,500 lbs	1.134
NU310E	NSK	Cylindrical Roller	50	110	27	135 kN	1.3
HR30310C	NSK	Tapered Roller	50	110	27	26,800 lbs	1.252
HR30310J	NSK	Tapered Roller	50	110	27	29,200 lbs	1.279
HR31310J	NSK	Tapered Roller	50	110	27	25,600 lbs	1.256
7310	NSK	Precision / Angular Contact	50	110	27	81.5 kN	1.1

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1310-K-TVH-C3	FAG	Ball	50	110	27	42 kN	1.52
1310-TVH	FAG	Ball	50	110	27	42 kN	1.54
6310	FAG	Ball	50	110	27	62 kN	1.1
6310-2RSR	FAG	Ball	50	110	27	62 kN	1.12
6310-2Z	FAG	Ball	50	110	27	62 kN	1.12
6310-C	FAG	Ball	50	110	27	68 kN	1.1
6310-C-2BRS	FAG	Ball	50	110	27	68 kN	1.1
6310-C-2HRS	FAG	Ball	50	110	27	68 kN	1.12

Series variants (different suffix)

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
QJ310-MPA	FAG	Ball	50	110	27	110 kN	1.39

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
11210-TVH	FAG	Ball	50	90	20	22.9 kN	0.866
1210-K-TVH-C3	FAG	Ball	50	90	20	22.9 kN	0.516
1210-TVH	FAG	Ball	50	90	20	22.9 kN	0.526
1310-K-TVH-C3	FAG	Ball	50	110	27	42 kN	1.52
1310-TVH	FAG	Ball	50	110	27	42 kN	1.54
16010	FAG	Ball	50	80	10	17.1 kN	0.175
2210-2RS-TVH	FAG	Ball	50	90	23	22.9 kN	0.606
2210-K-2RS-TVH-C3	FAG	Ball	50	90	23	22.9 kN	0.593

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