20230-K-MB-C3FAGSpherical Roller

Name: FAG 20230-K-MB-C3 Spherical Roller Bearing
Brand: FAG
SKU: 20230-K-MB-C3

20230-K-MB-C3 is a FAG spherical roller bearing, bore 150 mm, O.D. 270 mm, width 45 mm. Dimensions, drawing, interchanges and price.

Tapered boreC3 clearanceBrass cage

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Bore d150mm

Outside dia. D270mm

Width B45mm

Dynamic Cr430kN

Static C0r610kN

Limiting speed2,850rpm

Weight11.6kg

Cr / C0r0.7

Mean dia. dm210mm

Original catalogue drawing - FAG Schaeffler HR 1, page 660

20230-K-MB-C3 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	150	5.9055
D	Outside diameter	270	10.6299
B	Inner-ring / bearing width	45	1.7717
r	Chamfer (min)	3	0.1181

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)	150
Outside dia. D (mm)	270
Width B (mm)	45
Inner-ring shoulder dia. D1 (mm)	238.6

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	96668
Basic static load rating Cor (lbs)	137133
Basic dynamic load rating Cr (N)	430000
Basic static load rating C0r (N)	610000
Fatigue limit load Cur (N)	54000
Limiting speed nG (rpm)	2,850

Weight

Weight (kg)	11.6

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	3
Shaft shoulder da (mm)	181
Shaft shoulder db (mm)	158
Housing shoulder Da (mm)	256
Housing fillet ra max (mm)	2.5

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 900 rpm
4	107,500	102	1,881
6	71,667	392	7,268
8	53,750	1,024	18,963
10	43,000	2,154	39,897
15	28,667	8,323	154,138

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 430,000 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.660 (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
6230	NSK	Ball	150	270	45	39,600 lbs	11.476
7230B	NSK	Ball	150	270	45	50,500 lbs	10.977
230	NSK	Cylindrical Roller	150	270	45	77,000 lbs	11.34
NU230E	NSK	Cylindrical Roller	150	270	45	550 kN	11.9
30230	NSK	Tapered Roller	150	270	45	97,800 lbs	10.7
7230	NSK	Precision / Angular Contact	150	270	45	273 kN	11.2
7230A5	NSK	Precision / Angular Contact	150	270	45	58,000 lbs	11.104
7230C	NSK	Precision / Angular Contact	150	270	45	60,800 lbs	11.104
30230	Timken	Tapered Roller	150	270	45	533 kN	11.03

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
6230	FAG	Ball	150	270	45	187 kN	10.3
QJ230-N2-MPA	FAG	Ball	150	270	45	350 kN	12.2
N230-E-M1	FAG	Cylindrical Roller	150	270	45	520 kN	11.7
N230-E-XL-M1	FAG	Cylindrical Roller	150	270	45	520 kN	11.8
NJ230-E-M1	FAG	Cylindrical Roller	150	270	45	520 kN	11.9
NJ230-E-XL-M1	FAG	Cylindrical Roller	150	270	45	520 kN	12
NU230-E-M1	FAG	Cylindrical Roller	150	270	45	520 kN	11.8
NU230-E-XL-M1	FAG	Cylindrical Roller	150	270	45	520 kN	11.9

Series variants (different suffix)

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
20230-MB	FAG	Spherical Roller	150	270	45	430 kN	11.7

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
20330-MB	FAG	Spherical Roller	150	320	65	720 kN	26.9
22230-E1-XL	FAG	Spherical Roller	150	270	73	1010 kN	18.2
22230-E1-XL-K	FAG	Spherical Roller	150	270	73	1010 kN	17.8
22330-E1-XL	FAG	Spherical Roller	150	320	108	1640 kN	42.2
22330-E1-XL-K	FAG	Spherical Roller	150	320	108	1640 kN	40.9
22330-E1-XL-K-T41A	FAG	Spherical Roller	150	320	108	1640 kN	40.9
22330-E1-XL-T41D	FAG	Spherical Roller	150	320	108	1640 kN	42.2
23030-E1-XL-K-TVPB	FAG	Spherical Roller	150	225	56	630 kN	7.3

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