23944-S-K-MBFAGSpherical Roller

Name: FAG 23944-S-K-MB Spherical Roller Bearing
Brand: FAG
SKU: 23944-S-K-MB

23944-S-K-MB is a FAG spherical roller bearing, bore 220 mm, O.D. 300 mm, width 60 mm. Dimensions, drawing, interchanges and price.

Tapered boreBrass cage

Request a quote WhatsApp Email us Search the catalog

Bore d220mm

Outside dia. D300mm

Width B60mm

Dynamic Cr610kN

Static C0r1240kN

Limiting speed2,600rpm

Weight12.3kg

Cr / C0r0.49

Mean dia. dm260mm

Original catalogue drawing - FAG Schaeffler HR 1, page 764

23944-S-K-MB FAG Spherical 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	220	8.6614
D	Outside diameter	300	11.811
B	Inner-ring / bearing width	60	2.3622
r	Chamfer (min)	2.1	0.0827

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)	220
Outside dia. D (mm)	300
Width B (mm)	60
Inner-ring shoulder dia. D1 (mm)	277.4

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	137133
Basic static load rating Cor (lbs)	278763
Basic dynamic load rating Cr (N)	610000
Basic static load rating C0r (N)	1.24e+06
Fatigue limit load Cur (N)	72000
Factor e	0.18
Factor Y0	3.67
Limiting speed nG (rpm)	2,600
Reference speed nB (rpm)	1,460

Weight

Weight (kg)	12.3

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	2.1
Shaft shoulder da (mm)	230.2
Shaft shoulder db (mm)	230
Housing shoulder Da (mm)	289.8
Housing fillet ra max (mm)	2.1

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 800 rpm
4	152,500	102	2,117
6	101,667	392	8,177
8	76,250	1,024	21,333
10	61,000	2,154	44,884
15	40,667	8,323	173,406

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 610,000 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.764 (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
23944CAME4	NSK	Spherical Roller	220	300	60	141,000 lbs	12.052
NN3944	NSK	Precision / Angular Contact	220	300	60	99,000 lbs	11.376

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
23944-S-MB	FAG	Spherical Roller	220	300	60	610 kN	12.3

Series variants (different suffix)

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
23944-S-MB	FAG	Spherical Roller	220	300	60	610 kN	12.3

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
22244-BE-XL	FAG	Spherical Roller	220	400	108	1840 kN	59.6
22244-BE-XL-K	FAG	Spherical Roller	220	400	108	1840 kN	58.3
22344-BE-XL	FAG	Spherical Roller	220	460	145	2800 kN	117
22344-BE-XL-JPA-T41A	FAG	Spherical Roller	220	460	145	2800 kN	117
22344-BE-XL-K	FAG	Spherical Roller	220	460	145	2800 kN	114
22344-BE-XL-K-JPA-T41A	FAG	Spherical Roller	220	460	145	2800 kN	114
23044-BE-XL	FAG	Spherical Roller	220	340	90	1260 kN	29.4
23044-BE-XL-K	FAG	Spherical Roller	220	340	90	1260 kN	28.5

Request a quotation for 23944-S-K-MB

Send us the quantity you need and we will come back with price and lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.

Online enquiry form richard@bearingsfit.com WhatsApp +86 156 2149 6516