61805-2RSRFAGBall

Name: FAG 61805-2RSR Ball Bearing
Brand: FAG
SKU: 61805-2RSR

61805-2RSR is a FAG ball bearing, bore 25 mm, O.D. 37 mm, width 7 mm, dynamic rating 4.2 kN. Dimensions, drawing, interchanges and price.

Sealed both sides

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Bore d25mm

Outside dia. D37mm

Width B7mm

Dynamic Cr4.25kN

Static C0r2.55kN

Limiting speed9,500rpm

Weight0.021kg

Cr / C0r1.67

Mean dia. dm31mm

Original catalogue drawing - FAG Schaeffler HR 1, page 244

61805-2RSR 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	25	0.9843
D	Outside diameter	37	1.4567
B	Inner-ring / bearing width	7	0.2756
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)	25
Outside dia. D (mm)	37
Width B (mm)	7
Inner-ring OD d1 (mm)	28.2
Seal outside dia. D2 (mm)	34.2

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	955
Basic static load rating Cor (lbs)	573
Basic dynamic load rating Cr (N)	4250
Basic static load rating C0r (N)	2550
Fatigue limit load Cur (N)	129
Factor f0	13.9
Limiting speed nG (rpm)	9,500

Weight

Weight (kg)	0.021

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	0.3
Shaft shoulder da (mm)	27
Housing shoulder Da (mm)	35
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 3,000 rpm
4	1,062	64	356
6	708	216	1,200
8	531	512	2,844
10	425	1,000	5,556
15	283	3,375	18,750

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 4,250 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.244 (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
6805	NSK	Ball	25	37	7	968 lbs	0.023

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
61805	FAG	Ball	25	37	7	4.2 kN	0.023
61805-2Z	FAG	Ball	25	37	7	4.2 kN	0.02

Series variants (different suffix)

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
61805	FAG	Ball	25	37	7	4.2 kN	0.023
61805-2Z	FAG	Ball	25	37	7	4.2 kN	0.02

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
11205-TVH	FAG	Ball	25	52	15	12.3 kN	0.226
1205-K-TVH-C3	FAG	Ball	25	52	15	12.3 kN	0.135
1205-TVH	FAG	Ball	25	52	15	12.3 kN	0.138
1305-K-TVH-C3	FAG	Ball	25	62	17	18.3 kN	0.254
1305-TVH	FAG	Ball	25	62	17	18.3 kN	0.258
16005	FAG	Ball	25	47	8	7.7 kN	0.052
2205-2RS-TVH	FAG	Ball	25	52	18	12.3 kN	0.161
2205-K-2RS-TVH-C3	FAG	Ball	25	52	18	12.3 kN	0.157

Request a quotation for 61805-2RSR

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