248/1000-B-MBFAGSpherical Roller

Name: FAG 248/1000-B-MB Spherical Roller Bearing
Brand: FAG
SKU: 248/1000-B-MB

248/1000-B-MB is a FAG spherical roller bearing, bore 1000 mm, O.D. 1220 mm, width 218 mm. Dimensions, drawing, interchanges and price.

Brass cage

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Bore d1000mm

Outside dia. D1220mm

Width B218mm

Dynamic Cr6700kN

Static C0r21500kN

Limiting speed405rpm

Weight546kg

Cr / C0r0.31

Mean dia. dm1110mm

Original catalogue drawing - FAG Schaeffler HR 1, page 748

248/1000-B-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	1000	39.3701
D	Outside diameter	1220	48.0315
B	Inner-ring / bearing width	218	8.5827
r	Chamfer (min)	6	0.2362

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)	1000
Outside dia. D (mm)	1220
Width B (mm)	218
Inner-ring shoulder dia. D1 (mm)	1

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	1506220
Basic static load rating Cor (lbs)	4833392
Basic dynamic load rating Cr (N)	6.7e+06
Basic static load rating C0r (N)	2.15e+07
Fatigue limit load Cur (N)	1.21e+06
Factor e	0.16
Factor Y0	4.19
Limiting speed nG (rpm)	405
Reference speed nB (rpm)	104

Weight

Weight (kg)	546.0

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)	6
Shaft shoulder da (mm)	1023
Housing shoulder Da (mm)	1197
Housing fillet ra max (mm)	5

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 100 rpm
4	1,675,000	102	16,932
6	1,116,667	392	65,416
8	837,500	1,024	170,667
10	670,000	2,154	359,072
15	446,667	8,323	1,387,244

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 6,700,000 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.748 (dimensions)

Load ratings in newtons, fatigue limit load Cur, limiting speed nG and reference speed nB.

Series variants (different suffix)

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
248/1060-B-MB	FAG	Spherical Roller	1060	1280	218	7000 kN	599
248/1120-B-MB	FAG	Spherical Roller	1120	1360	243	8000 kN	791
248/1180-B-MB	FAG	Spherical Roller	1180	1420	243	8400 kN	790
248/1250-B-MB	FAG	Spherical Roller	1250	1500	250	9000 kN	918
248/1320-B-MB	FAG	Spherical Roller	1320	1600	280	10300 kN	1235
248/1400-B-MB	FAG	Spherical Roller	1400	1700	300	12100 kN	1470
248/1500-B-MB	FAG	Spherical Roller	1500	1820	315	13000 kN	1660
248/1600-B-MB	FAG	Spherical Roller	1600	1950	345	16000 kN	2222

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
230/1000-K-MB	FAG	Spherical Roller	1000	1420	308	13100 kN	1590
230/1000-MB	FAG	Spherical Roller	1000	1420	308	13100 kN	1590
231/1000-B-K-MB	FAG	Spherical Roller	1000	1580	462	22000 kN	3474
231/1000-B-MB	FAG	Spherical Roller	1000	1580	462	22000 kN	3474
238/1000-K-MB	FAG	Spherical Roller	1000	1220	165	4900 kN	399
238/1000-MB	FAG	Spherical Roller	1000	1220	165	4900 kN	413
240/1000-B-K30-MB	FAG	Spherical Roller	1000	1420	412	16400 kN	2073
240/1000-B-MB	FAG	Spherical Roller	1000	1420	412	16400 kN	2108

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