30208-AFAGTapered Roller

Name: FAG 30208-A Tapered Roller Bearing
Brand: FAG
SKU: 30208-A

30208-A is a FAG tapered roller bearing, bore 40 mm, O.D. 80 mm, width 18 mm, dynamic rating 61 kN. Dimensions, drawing, interchanges and price.

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Bore d40mm

Outside dia. D80mm

Width B18mm

Dynamic Cr61kN

Static C0r66kN

Limiting speed9,000rpm

Weight0.435kg

Cr / C0r0.92

Mean dia. dm60mm

Original catalogue drawing - FAG Schaeffler HR 1, page 478

30208-A FAG Tapered Roller 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	40	1.5748
D	Outside diameter	80	3.1496
B	Inner-ring / bearing width	18	0.7087
T	Overall assembly width	19.75	0.7776
C	Cup / outer-ring width	16	0.6299

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)	40
Outside dia. D (mm)	80
Width B (mm)	18
Overall width T (mm)	19.75
Cup width C (mm)	16
Inner-ring OD d1 (mm)	58.4

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	13713
Basic static load rating Cor (lbs)	14837
Basic dynamic load rating Cr (N)	61000
Basic static load rating C0r (N)	66000
Basic dynamic axial rating Ca (N)	3
Fatigue limit load Cur (N)	7600
Factor e	0.37
Factor Y	1.6
Factor Y0	0.88
Limiting speed nG (rpm)	9,000
Reference speed nB (rpm)	5,900
Effective load centre a (mm)	17

Weight

Weight (kg)	0.435

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)	1.5
Shaft shoulder da (mm)	49
Shaft shoulder db (mm)	47
Housing shoulder Da (mm)	73
Housing shoulder Db (mm)	74
Housing fillet ra max (mm)	1.5
Fillet rb 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	15,250	102	564
6	10,167	392	2,181
8	7,625	1,024	5,689
10	6,100	2,154	11,969
15	4,067	8,323	46,241

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 61,000 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.478 (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
1208	NSK	Ball	40	80	18	4,340 lbs	0.417
6208	NSK	Ball	40	80	18	6,550 lbs	0.372
7208B	NSK	Ball	40	80	18	6,830 lbs	0.381
BL208	NSK	Ball	40	80	18	9,380 lbs	0.395
208	NSK	Cylindrical Roller	40	80	18	9,790 lbs	0.386
NU208E	NSK	Cylindrical Roller	40	80	18	68.5 kN	0.379
HR30208	NSK	Tapered Roller	40	80	18	78 kN	0.437
HR30208C	NSK	Tapered Roller	40	80	18	24,100 lbs	0.424
HR30208J	NSK	Tapered Roller	40	80	18	14,300 lbs	0.44
7208	NSK	Precision / Angular Contact	40	80	18	39 kN	0.375

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
11208-TVH	FAG	Ball	40	80	18	19.4 kN	0.722
1208-K-TVH-C3	FAG	Ball	40	80	18	19.4 kN	0.408
1208-TVH	FAG	Ball	40	80	18	19.4 kN	0.414
6208	FAG	Ball	40	80	18	29 kN	0.372
6208-2RSR	FAG	Ball	40	80	18	29 kN	0.384
6208-2Z	FAG	Ball	40	80	18	29 kN	0.382
6208-C	FAG	Ball	40	80	18	31.5 kN	0.345
6208-C-2BRS	FAG	Ball	40	80	18	31.5 kN	0.359

Series variants (different suffix)

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
30208-XL	FAG	Tapered Roller	40	80	18	73 kN	0.432

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
30308-A	FAG	Tapered Roller	40	90	23	92 kN	0.812
31308-A	FAG	Tapered Roller	40	90	23	76 kN	0.727
31308-A-N11CA-A50-90	FAG	Tapered Roller	40	90	None	130 kN	1.52
31308-XL	FAG	Tapered Roller	40	90	23	89 kN	0.723
31308-XL-DF-A115-155	FAG	Tapered Roller	40	90	None	153 kN	1.52
31308-XL-DF-A50-90	FAG	Tapered Roller	40	90	None	153 kN	1.52
32008-X-XL	FAG	Tapered Roller	40	68	19	63 kN	0.28
32008-XA	FAG	Tapered Roller	40	68	19	52 kN	0.312

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