20217 -MB Barrel Roller Bearings by FAG
20217 -MB Barrel Roller Bearings by FAG

FAG

Barrel Roller Bearings FAG 20217 -MB

Technical data
 
Inner diameter
85 mm
Outer diameter
150 mm
Width
28 mm
Seal
None, open bearing
Cage
Brass cage
Clearance
Normal radial clearance
Running accuracy
Tolerance class P0/PN2 / ABEC 1
Bore
Cylindrical bore
Temperature range
-30 to +150 °C
Weight
2,18 kg
Scale quantity Your discount Unit price
2 17,00 € 323,05 €
5 34,00 € 306,05 €
340,05 €
exkl. MwSt, zzgl. Versandkosten

143 ready to ship

Barrel Roller Bearings FAG 20217 -MB
In Stock

Barrel Roller Bearings FAG 20217 -MB

The FAG 20217 -MB spherical roller bearing offers high radial load-carrying capacity, a solid brass cage and standardised dimensions of 85 × 150 × 28 mm.

The FAG 20217 -MB spherical roller bearing is a single-row roller bearing designed for demanding industrial applications. It primarily supports heavy radial loads and automatically compensates for misalignment or shaft deflection. Thanks to its open design, the roller bearing can be flexibly lubricated with application-specific lubricants. With a bore of 85 mm, an outer diameter of 150 mm and a width of 28 mm, this model fits into standardised housing designs used in mechanical engineering.

What is the 20217 -MB spherical roller bearing suitable for?

The 20217 -MB barrel bearing is primarily suitable for designs subject to high radial loads, where misalignment between the shaft and housing may occur. Typical applications include heavy-duty drives, gearboxes, conveyor systems and general mechanical engineering. The barrel-shaped rolling elements distribute the forces evenly across the raceway of the outer ring. This enables the bearing to compensate for misalignment during operation without causing additional edge pressures on the rollers.

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

The letter suffix ‘MB’ denotes a solid brass cage which guides the rollers precisely and remains thermally stable. This design proves its worth under demanding operating conditions and in environments subject to vibration or shock loads. The bearing operates within a temperature range of -30 to +150 degrees. As this is an open bearing with standard clearance, you should ensure that the housing is suitably sealed and that the lubrication supply is appropriately configured when selecting the bearing.

What sets a spherical roller bearing apart from other roller bearings?

Spherical roller bearings have spherical rollers in a spherical outer ring raceway and therefore align themselves automatically. They compensate for angular misalignment and shaft deflection without increasing friction. Compared with deep-groove ball bearings, they can withstand high radial loads; however, in open designs, they require external sealing of the bearing housing.

What are the dimensions of the 20217-MB barrel bearing?

The roller bearing has an inside diameter of 85 mm, an outside diameter of 150 mm and a width of 28 mm. These standardised key dimensions allow for installation in standardised industrial housings in accordance with the applicable fit specifications for cylindrical shaft seats in mechanical engineering. Always check the dimensional accuracy of the connecting parts before assembly.

What does the suffix ‘MB’ stand for in FAG?

The suffix ‘MB’ stands for a solid brass cage that is guided on the rollers or the inner ring. Brass cages offer high mechanical strength and are suitable for demanding operating environments involving vibrations, as well as for operating temperatures between -30 and +150 degrees.

What is the significance of the standard radial bearing clearance for this bearing?

The standard bearing clearance defines the design operating clearance between the rolling elements and the raceways prior to installation. It is tailored to standard fits and operating temperatures, at which the inner and outer rings expand only moderately as a result of press-fitting and operational heating.

How is the open drum storage unit 20217-MB lubricated?

Open bearings are supplied without factory-fitted grease and can be flexibly lubricated with grease or lubricating oil via the housing design. The choice of lubricant depends on the rotational speeds and the operating temperature. Regular relubrication and effective protection of the housing against dirt are essential.

What does the tolerance class P0 or ABEC 1 mean?

Tolerance class P0 (equivalent to ABEC 1 and PN) denotes the industrial standard for dimensional and running accuracy. Bearings in this class cover the majority of general mechanical engineering applications, as the permissible deviations for concentricity and dimensions are designed for standardised shaft and housing fits.

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

10007368
Product added to compare.
Product added to wishlist

Reset Password

New Account Register