7228 -B-MP Angular Contact Ball B. by FAG
7228 -B-MP Angular Contact Ball B. by FAG

FAG

Angular Contact Ball B. FAG 7228 -B-MP

Technical data
 
Inner diameter
140 mm
Outer diameter
250 mm
Width
42 mm
Material
Standard bearing steel
Ball rows
Single row bearing
Seal
None, open bearing
Cage
Brass cage
Clearance
Normal radial clearance
Running accuracy
Tolerance class P0/PN2 / ABEC 1
Outer ring
Without flange/groove
Contact angle
40 degree
Arrangement
Standard version
Temperature range
-20 to +200 °C
Weight
9,3 kg
Scale quantity Your discount Unit price
2 36,76 € 698,66 €
3 73,54 € 661,88 €
735,42 €
inkl. MwSt, zzgl. Versandkosten

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Angular Contact Ball B. FAG 7228 -B-MP
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Angular Contact Ball B. FAG 7228 -B-MP

The 7228 -B-MP angular contact ball bearing, with a 140 mm bore and a 40-degree contact angle, can accommodate high unilateral axial and radial forces.

The 7228 -B-MP angular contact ball bearing from FAG Rolling Bearings is a single-row radial ball bearing for industrial applications. Thanks to its angularly arranged raceways, this rolling bearing effectively transfers combined loads. The bearing is made from standard rolling-element steel (100Cr6) and operates with standard radial clearance within tolerance class P0/PN or ABEC 1. The open bearing has an outer ring without a flange or groove and is suitable for lubricated installations.

What is the 7228 -B-MP angular contact ball bearing suitable for in operation?

This bearing is primarily suitable for designs in which radial forces and significant axial forces act simultaneously in one direction. Thanks to its 40-degree contact angle, the component effectively transfers axial loads to the housing structure. Typical applications include bearing arrangements where shafts must be guided safely under unilateral axial and radial loads. As single-row angular contact ball bearings can only accommodate axial forces from one side, the bearing arrangement usually requires a suitably positioned mating bearing.

What is the function of the brass cage in this bearing?

The built-in brass cage guides the rolling elements precisely within the raceway, even under demanding operating conditions. Brass is characterised by high strength and good emergency running properties in the event of a lack of lubricant. Together with the permissible temperature range of –20 to +200 degrees, this cage variant enables use in units subject to thermal stress. As the bearing is of an open design, you can tailor the type of lubricant and external sealing precisely to your environmental conditions.

What are the key features of the 7228 -B-MP angular contact ball bearing?

A single-row angular contact ball bearing of this type has raceways in the inner and outer rings that are offset at an angle to one another. This design accommodates radial forces as well as unidirectional axial forces. The FAG rolling bearing version features a solid brass cage and complies with the standard tolerance class P0/PN.

What are the main dimensions of bearing 7228 -B-MP?

The component has an internal diameter of 140 mm, an external diameter of 250 mm and a width of 42 mm. The outer ring is cylindrical in design and has neither a ring groove nor a flange. This means the bearing fits into standardised cylindrical housing bores.

What is the significance of the 40-degree pressure angle?

The contact angle describes the line of action of the force between the points of contact of the balls and the raceways relative to the radial plane. An angle of 40 degrees ensures that the bearing has a high axial load capacity, but restricts the absorption of axial forces to a single direction.

What is the operating temperature range of the 7228 -B-MP angular contact ball bearing?

The roller bearing is designed for operating temperatures ranging from -20 to +200 degrees. Both the 100Cr6 roller bearing steel and the brass cage retain their dimensional stability within this temperature range. A lubricant with the appropriate temperature resistance is essential for reliable operation at high temperatures.

What should be borne in mind with the open design without a seal?

Open bearings are supplied ex works without cover plates or sealing washers and are not pre-lubricated with grease. Dirt particles or moisture must not come into direct contact with the raceways. The bearing housing therefore requires external sealing on the casing, as well as suitable oil or grease lubrication, prior to commissioning.

How is the single-row angular contact ball bearing secured axially?

A single angular contact ball bearing can only accommodate axial forces in one direction. In practice, it is therefore mounted in a mirror-image configuration opposite a second bearing. This paired mounting in an O or X configuration supports the shaft against alternating axial thrusts and provides the required operating clearance.

Schaeffler Technologies AG & Co. KG
Industriestraße 1-3, 91074 Herzogenaurach, Germany
info.de@schaeffler.com, https://www.schaeffler.de/de/meta/impressum/

10017374
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