6309-CFAGBall

Name: FAG 6309-C Ball Bearing
Brand: FAG
SKU: 6309-C

6309-C is a FAG ball bearing, bore 45 mm, O.D. 100 mm, width 25 mm, dynamic rating 58 kN. Dimensions, drawing, interchanges and price.

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Bore d45mm

Outside dia. D100mm

Width B25mm

Dynamic Cr58kN

Static C0r31.5kN

Limiting speed10,500rpm

Weight0.83kg

Cr / C0r1.84

Mean dia. dm72.5mm

Original catalogue drawing - FAG Schaeffler HR 1, page 252

6309-C 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	45	1.7717
D	Outside diameter	100	3.937
B	Inner-ring / bearing width	25	0.9843
r	Chamfer (min)	1.5	0.0591

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)	45
Outside dia. D (mm)	100
Width B (mm)	25
Seal outside dia. D2 (mm)	86.4

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	13039
Basic static load rating Cor (lbs)	7081
Basic dynamic load rating Cr (N)	58000
Basic static load rating C0r (N)	31500
Fatigue limit load Cur (N)	2140
Factor f0	12.9
Limiting speed nG (rpm)	10,500
Reference speed nB (rpm)	9,100

Weight

Weight (kg)	0.83

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	1.5
Shaft shoulder da (mm)	54
Housing shoulder Da (mm)	91
Housing fillet ra max (mm)	1.5

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 3,000 rpm
4	14,500	64	356
6	9,667	216	1,200
8	7,250	512	2,844
10	5,800	1,000	5,556
15	3,867	3,375	18,750

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 58,000 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.252 (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
1309	NSK	Ball	45	100	25	8,540 lbs	0.993
6309	NSK	Ball	45	100	25	11,900 lbs	0.835
7309B	NSK	Ball	45	100	25	12,300 lbs	0.875
BL309	NSK	Ball	45	100	25	14,700 lbs	0.88
309	NSK	Cylindrical Roller	45	100	25	16,600 lbs	0.88
NU309E	NSK	Cylindrical Roller	45	100	25	120 kN	1.01
21309EAE4	NSK	Spherical Roller	45	100	25	149 kN	0.96
HR30309	NSK	Tapered Roller	45	100	25	138 kN	1.01
HR30309C	NSK	Tapered Roller	45	100	25	23,200 lbs	0.984
HR30309J	NSK	Tapered Roller	45	100	25	25,200 lbs	1.012

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1309-K-TVH-C3	FAG	Ball	45	100	25	38.5 kN	0.939
1309-TVH	FAG	Ball	45	100	25	38.5 kN	0.953
6309	FAG	Ball	45	100	25	53 kN	0.849
6309-2RSR	FAG	Ball	45	100	25	53 kN	0.867
6309-2Z	FAG	Ball	45	100	25	53 kN	0.869
6309-C-2BRS	FAG	Ball	45	100	25	58 kN	0.85
6309-C-2HRS	FAG	Ball	45	100	25	58 kN	0.85
6309-C-2Z	FAG	Ball	45	100	25	58 kN	0.84

Series variants (different suffix)

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
6309	FAG	Ball	45	100	25	53 kN	0.849
6309-2RSR	FAG	Ball	45	100	25	53 kN	0.867
6309-2Z	FAG	Ball	45	100	25	53 kN	0.869
6309-C-2BRS	FAG	Ball	45	100	25	58 kN	0.85
6309-C-2HRS	FAG	Ball	45	100	25	58 kN	0.85
6309-C-2Z	FAG	Ball	45	100	25	58 kN	0.84

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
11209-TVH	FAG	Ball	45	85	19	22 kN	0.78
1209-K-TVH-C3	FAG	Ball	45	85	19	22 kN	0.454
1209-TVH	FAG	Ball	45	85	19	22 kN	0.462
1309-K-TVH-C3	FAG	Ball	45	100	25	38.5 kN	0.939
1309-TVH	FAG	Ball	45	100	25	38.5 kN	0.953
16009	FAG	Ball	45	75	10	16.5 kN	0.16
2209-2RS-TVH	FAG	Ball	45	85	23	22 kN	0.548
2209-K-2RS-TVH-C3	FAG	Ball	45	85	23	22 kN	0.535

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