61811-2RSR-YFAGBall

Name: FAG 61811-2RSR-Y Ball Bearing
Brand: FAG
SKU: 61811-2RSR-Y

61811-2RSR-Y is a FAG ball bearing, bore 55 mm, O.D. 72 mm, width 9 mm, dynamic rating 9.6 kN. Dimensions, drawing, interchanges and price.

Sealed both sides

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Bore d55mm

Outside dia. D72mm

Width B9mm

Dynamic Cr9.6kN

Static C0r8.5kN

Limiting speed4,400rpm

Weight0.084kg

Cr / C0r1.13

Mean dia. dm63.5mm

Original catalogue drawing - FAG Schaeffler HR 1, page 256

61811-2RSR-Y 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	55	2.1654
D	Outside diameter	72	2.8346
B	Inner-ring / bearing width	9	0.3543
r	Chamfer (min)	0.3	0.0118

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)	55
Outside dia. D (mm)	72
Width B (mm)	9
Inner-ring OD d1 (mm)	60.6
Seal outside dia. D2 (mm)	68.6

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	2158
Basic static load rating Cor (lbs)	1911
Basic dynamic load rating Cr (N)	9600
Basic static load rating C0r (N)	8500
Fatigue limit load Cur (N)	510
Factor f0	16.3
Limiting speed nG (rpm)	4,400

Weight

Weight (kg)	0.084

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	0.3
Shaft shoulder da (mm)	57
Housing shoulder Da (mm)	70
Housing fillet ra max (mm)	0.3

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,400 rpm
4	2,400	64	762
6	1,600	216	2,571
8	1,200	512	6,095
10	960	1,000	11,905
15	640	3,375	40,179

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 9,600 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.256 (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
6811	NSK	Ball	55	72	9	1,980 lbs	0.082

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
61811-2RZ-Y	FAG	Ball	55	72	9	9.6 kN	0.084
61811-2Z-Y	FAG	Ball	55	72	9	9 kN	0.084
61811-Y	FAG	Ball	55	72	9	9.6 kN	0.085
71811-B-TVH	FAG	Precision / Angular Contact	55	72	9	11.8 kN	0.084

Series variants (different suffix)

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
61811-2RZ-Y	FAG	Ball	55	72	9	9.6 kN	0.084
61811-2Z-Y	FAG	Ball	55	72	9	9 kN	0.084
61811-Y	FAG	Ball	55	72	9	9.6 kN	0.085

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
11211-TVH	FAG	Ball	55	100	21	27 kN	1.13
1211-K-TVH-C3	FAG	Ball	55	100	21	27 kN	0.682
1211-TVH	FAG	Ball	55	100	21	27 kN	0.693
1311-K-TVH-C3	FAG	Ball	55	120	29	52 kN	1.55
1311-TVH	FAG	Ball	55	120	29	52 kN	1.57
16011	FAG	Ball	55	90	11	20.6 kN	0.26
2211-2RS-TVH	FAG	Ball	55	100	25	27 kN	0.825
2211-K-2RS-TVH-C3	FAG	Ball	55	100	25	27 kN	0.808

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