6308-C-2HRSFAGBall

Name: FAG 6308-C-2HRS Ball Bearing
Brand: FAG
SKU: 6308-C-2HRS

6308-C-2HRS is a FAG ball bearing, bore 40 mm, O.D. 90 mm, width 23 mm, dynamic rating 47 kN. Dimensions, drawing, interchanges and price.

Sealed both sides

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Bore d40mm

Outside dia. D90mm

Width B23mm

Dynamic Cr47kN

Static C0r25kN

Limiting speed7,400rpm

Weight0.622kg

Cr / C0r1.88

Mean dia. dm65mm

Original catalogue drawing - FAG Schaeffler HR 1, page 250

6308-C-2HRS 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	40	1.5748
D	Outside diameter	90	3.5433
B	Inner-ring / bearing width	23	0.9055
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)	40
Outside dia. D (mm)	90
Width B (mm)	23
Seal outside dia. D2 (mm)	78.8

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	10566
Basic static load rating Cor (lbs)	5620
Basic dynamic load rating Cr (N)	47000
Basic static load rating C0r (N)	25000
Fatigue limit load Cur (N)	1690
Factor f0	13
Limiting speed nG (rpm)	7,400

Weight

Weight (kg)	0.622

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	1.5
Shaft shoulder da (mm)	49
Housing shoulder Da (mm)	81
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 2,400 rpm
4	11,750	64	444
6	7,833	216	1,500
8	5,875	512	3,556
10	4,700	1,000	6,944
15	3,133	3,375	23,438

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 47,000 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.250 (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
1308	NSK	Ball	40	90	23	6,520 lbs	0.744
6308	NSK	Ball	40	90	23	9,160 lbs	0.635
7308B	NSK	Ball	40	90	23	9,480 lbs	0.658
BL308	NSK	Ball	40	90	23	12,300 lbs	0.667
308	NSK	Cylindrical Roller	40	90	23	13,200 lbs	0.653
NU308E	NSK	Cylindrical Roller	40	90	23	102 kN	0.747
21308EAE4	NSK	Spherical Roller	40	90	23	118 kN	0.73
HR30308	NSK	Tapered Roller	40	90	23	111 kN	0.758
HR30308C	NSK	Tapered Roller	40	90	23	19,000 lbs	0.717
HR30308J	NSK	Tapered Roller	40	90	23	20,300 lbs	0.757

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
1308-K-TVH-C3	FAG	Ball	40	90	23	30 kN	0.698
1308-TVH	FAG	Ball	40	90	23	30 kN	0.708
6308	FAG	Ball	40	90	23	42.5 kN	0.64
6308-2RSR	FAG	Ball	40	90	23	42.5 kN	0.654
6308-2Z	FAG	Ball	40	90	23	42.5 kN	0.654
6308-C	FAG	Ball	40	90	23	47 kN	0.6
6308-C-2BRS	FAG	Ball	40	90	23	47 kN	0.654
6308-C-2Z	FAG	Ball	40	90	23	47 kN	0.617

Series variants (different suffix)

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
6308	FAG	Ball	40	90	23	42.5 kN	0.64
6308-2RSR	FAG	Ball	40	90	23	42.5 kN	0.654
6308-2Z	FAG	Ball	40	90	23	42.5 kN	0.654
6308-C	FAG	Ball	40	90	23	47 kN	0.6
6308-C-2BRS	FAG	Ball	40	90	23	47 kN	0.654
6308-C-2Z	FAG	Ball	40	90	23	47 kN	0.617

Nearby bore sizes

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
1308-K-TVH-C3	FAG	Ball	40	90	23	30 kN	0.698
1308-TVH	FAG	Ball	40	90	23	30 kN	0.708
16008	FAG	Ball	40	68	9	13.2 kN	0.12
2208-2RS-TVH	FAG	Ball	40	80	23	19.4 kN	0.528
2208-K-2RS-TVH-C3	FAG	Ball	40	80	23	19.4 kN	0.517

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