61938FAGBall

Name: FAG 61938 Ball Bearing
Brand: FAG
SKU: 61938

61938 is a FAG ball bearing, bore 190 mm, O.D. 260 mm, width 33 mm, dynamic rating 140 kN. Dimensions, drawing, interchanges and price.

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Bore d190mm

Outside dia. D260mm

Width B33mm

Dynamic Cr140kN

Static C0r146kN

Limiting speed3,350rpm

Weight4.39kg

Cr / C0r0.96

Mean dia. dm225mm

Original catalogue drawing - FAG Schaeffler HR 1, page 274

61938 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	190	7.4803
D	Outside diameter	260	10.2362
B	Inner-ring / bearing width	33	1.2992
r	Chamfer (min)	2	0.0787

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)	190
Outside dia. D (mm)	260
Width B (mm)	33
Inner-ring OD d1 (mm)	211.9
Inner-ring shoulder dia. D1 (mm)	238.8

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	31473
Basic static load rating Cor (lbs)	32822
Basic dynamic load rating Cr (N)	140000
Basic static load rating C0r (N)	146000
Fatigue limit load Cur (N)	5200
Factor f0	16.4
Limiting speed nG (rpm)	3,350
Reference speed nB (rpm)	3,000

Weight

Weight (kg)	4.39

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	2
Shaft shoulder da (mm)	198.8
Housing shoulder Da (mm)	251.2
Housing fillet ra max (mm)	2

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 1,100 rpm
4	35,000	64	970
6	23,333	216	3,273
8	17,500	512	7,758
10	14,000	1,000	15,152
15	9,333	3,375	51,136

Basic rating life per ISO 281: L₁₀ = (C/P)³ with C = 140,000 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.274 (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
6938	NSK	Ball	190	260	33	25,300 lbs	5.13
7938A5	NSK	Precision / Angular Contact	190	260	33	31,100 lbs	5.121
7938C	NSK	Precision / Angular Contact	190	260	33	33,100 lbs	5.062

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
B71938-C-T-P4S	FAG	Precision / Angular Contact	190	260	33	166 kN	4.31
B71938-E-T-P4S	FAG	Precision / Angular Contact	190	260	33	156 kN	4.29

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
16038	FAG	Ball	190	290	31	158 kN	7.04
6038-M	FAG	Ball	190	290	46	216 kN	11.3
61838	FAG	Ball	190	240	24	73 kN	2.24
6238-M	FAG	Ball	190	340	55	255 kN	22.6
6338-M	FAG	Ball	190	400	78	375 kN	50.4
QJ1038-N2-MPA	FAG	Ball	190	290	46	345 kN	11.4
QJ238-N2-MPA	FAG	Ball	190	340	55	455 kN	23.8
QJ338-N2-MPA	FAG	Ball	190	400	78	735 kN	52.1

Request a quotation for 61938

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