FAG Bearing 230/750-K-MB

Spherical roller bearing 230..-K-MB, symmetric 3 ribs
d=750mm, D=1090mm, B=250mm, Mass bearing=784.7kg
Material: Bearing steels
In Stock:
Photo may not represent actual item. See the technical specification for details.

Specifications of FAG Bearing 230/750-K-MB

FAG Bearing 230/750-K-MB
FAG Bearing 230/750-K-MB

Additional information

Main Dimensions & Performance Data

Cr 8500000 N Basic dynamic load rating, radial
C0r 1.91E7 N Basic static load rating, radial
d 750 mm Bore diameter
Cur 1030000 N Fatigue load limit, radial
nG 550 1/min Limiting speed
D 1090 mm Outside diameter
nδr 305 1/min Reference speed
B 250 mm Width

Dimensions

D1 990.9 mm Bore diameter outer ring
ds 12.5 mm Diameter lubrication hole
rmin 7.5 mm Minimum chamfer dimension
ns 23.5 mm Width of lubricating groove

Calculation factors

Y1 3.01 Dynamic axial load factor
Y2 4.48 Dynamic axial load factor
e 0.22 Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y
Y0 2.94 Static axial load factor

Mounting dimensions

Da max 1062 mm Maximum diameter of housing shoulder
da max 828 mm Maximum diameter of shaft shoulder
ra max 6 mm Maximum recess radius
db min 776 mm Minimum cavity diameter of the sleeve
Ba min 23 mm Minimum cavity width of the sleeve
da min 778 mm Minimum diameter shaft shoulder

Temperature range

Tmax 200 ℃ Operating temperature max.
Tmin -30 ℃ Operating temperature min.

Product description of FAG Bearing 230/750-K-MB

FAG Bearing 230/750-K-MB, it belongs to FAG Bearing > Rolling and Plain Bearings > Roller Bearings > Spherical Roller Bearings,Spherical roller bearings are very similar to cylindrical bearings with one exception in that the rollers are rounded around their midsection.

FAG Bearing 230/750-K-MB, Spherical Roller Bearings with hardened steel cages deliver greater fatigue strength, increased wear-resistance and tougher protection against shock and acceleration.Spherical Roller Bearings with brass cages provide extra strength and durability in the most unrelenting conditions, including extreme shock and vibration, high acceleration forces and minimal lubrication.

The outstanding feature of all spherical roller bearings is angular adjust-ability. This is achieved with a double row rolling element set based on symmetrical barrel rollers, which orient themselves freely on the mutually curved raceway in the outer ring and the two raceways inclined relative to the bearing axis in the inner ring.

In addition to standard spherical roller bearings (without seals, with a tapered or cylindrical bore), specialized designs are available for special requirements: spherical roller bearings for vibratory machinery split spherical roller bearings for simplified bearing replacement sealed spherical roller bearings.

FAG Bearing 230/750-K-MB, Spherical roller bearings are suitable where: • bearing arrangements are subjected to high and very high radial loads • relatively high axial loads occur on one or both sides, in addition to high radial forces • dynamic or static misalignment of the shaft relative to the housing, or deflections of the shaft, must be freely compensated by the bearing • high shock type loads must be supported dynamically • locating bearings with a very high load carrying capacity are required Spherical roller bearing: comparison of load carrying capacity with barrel roller bearing of the same dimensions, compensation of misalignment Fr = radial load Cr = basic dynamic load rating

FAG Bearing 230/750-K-MB, Bearings of basic design

The outer ring has a curved raceway

Spherical roller bearings are part of the group of radial roller bearings. These self-retaining rolling bearings have two rows of rollers with a mutually curved raceway in the outer ring and two raceways inclined relative to the bearing axis in the inner ring. This raceway design allows these bearings to combine a range of characteristics, which are essential to many applications, in one bearing, such as angular adjust-ability for example, The symmetrical barrel rollers are guided by brass, sheet steel or poly-amide cages

Roller contact design

The stress distribution at the contact points between the rollers and raceways is determined by the contact surface of the rollers. As a result, the roller geometry is matched to the raceway. This gives a favourable load distribution over the entire length of the roller and prevents both edge stresses and stress peaks at the ends of the roller

Spherical roller bearings for vibratory machinery

The rolling bearings fitted in vibratory machinery must support not only high loads and high speeds but also accelerations and centrifugal forces. In many cases, these applications involve adverse environmental conditions such as contamination and moisture.

FAG Bearing 230/750-K-MB, Spherical roller bearings are matched to the operating conditions of vibratory machinery

The special spherical roller bearings developed by Schaeffler are matched to the operating conditions in vibratory machinery and have proved highly successful in practical use. In particular, the cages of the rolling bearings are subjected to stresses arising from high radial accelerations. In unfavourable cases, these may be overlaid by axial accelerations as well.

The support of angular misalignment reduces additional sliding motions

The rotating imbalance generates a rotating shaft deflection and additional sliding motion within the bearings. This increases the friction and therefore the operating temperature of the bearings. The special spherical roller bearings can support dynamic angular adjustments up to 0,15°.

Basic designs of special spherical roller bearings

Schaeffler special spherical roller bearings for vibratory machinery have the main dimensions of dimension series 23 (DIN 616:2000, ISO 15:2017).

Specification T41A (T41D)

Schaeffler spherical roller bearings for vibratory machinery are manufactured in accordance with the specification T41A or T41D, This takes into consideration the particular requirements of the application. The specification defines, for example, the tolerances of the bore and outside diameter, as well as the radial internal clearance of the bearings. The other tolerances are in accordance with tolerance class Normal to ISO 492:2014.

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