6344-MFAGBall

Name: FAG 6344-M Ball Bearing
Brand: FAG
SKU: 6344-M

6344-M is a FAG ball bearing, bore 220 mm, O.D. 460 mm, width 88 mm, dynamic rating 440 kN. Dimensions, drawing, interchanges and price.

Request a quote WhatsApp Email us Search the catalog

Bore d220mm

Outside dia. D460mm

Width B88mm

Dynamic Cr440kN

Static C0r560kN

Limiting speed3,200rpm

Weight73.7kg

Cr / C0r0.79

Mean dia. dm340mm

Original catalogue drawing - FAG Schaeffler HR 1, page 220

6344-M 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	220	8.6614
D	Outside diameter	460	18.1102
B	Inner-ring / bearing width	88	3.4646
r	Chamfer (min)	5	0.1969

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)	220
Outside dia. D (mm)	460
Width B (mm)	88
Inner-ring OD d1 (mm)	299.4
Inner-ring shoulder dia. D1 (mm)	383

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	98916
Basic static load rating Cor (lbs)	125893
Basic dynamic load rating Cr (N)	440000
Basic static load rating C0r (N)	560000
Fatigue limit load Cur (N)	20000
Limiting speed nG (rpm)	3,200
Reference speed nB (rpm)	1,960

Weight

Weight (kg)	73.7

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	5
Shaft shoulder da (mm)	240
Housing shoulder Da (mm)	440
Housing fillet ra max (mm)	4

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,000 rpm
4	110,000	64	1,067
6	73,333	216	3,600
8	55,000	512	8,533
10	44,000	1,000	16,667
15	29,333	3,375	56,250

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 440,000 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.220 (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
344	NSK	Cylindrical Roller	220	460	88	268,000 lbs	74.843
NU344	NSK	Cylindrical Roller	220	460	88	1470 kN	74.6
30344	NSK	Tapered Roller	220	460	88	321,000 lbs	72.411

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
QJ344-N2-MPA	FAG	Ball	220	460	88	900 kN	77.1
NU344-E-M1	FAG	Cylindrical Roller	220	460	88	1430 kN	75.5
NU344-E-TB-M1	FAG	Cylindrical Roller	220	460	88	1440 kN	75.5
30344	FAG	Tapered Roller	220	460	88	1440 kN	68

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
16044	FAG	Ball	220	340	37	200 kN	11.8
6044-M	FAG	Ball	220	340	56	245 kN	18.8
61844	FAG	Ball	220	270	24	78 kN	2.62
61944	FAG	Ball	220	300	38	186 kN	6.372
6244-M	FAG	Ball	220	400	65	300 kN	37.9
QJ244-N2-MPA	FAG	Ball	220	400	65	630 kN	38.6
QJ344-N2-MPA	FAG	Ball	220	460	88	900 kN	77.1

Request a quotation for 6344-M

Send us the quantity you need and we will come back with price and lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.

Online enquiry form richard@bearingsfit.com WhatsApp +86 156 2149 6516