SKF 6011-2Z/C3GJN deep groove ball bearing

Quality: premium ⭐⭐⭐⭐⭐⭐

Manufacturer: SKF Sweden

SKF is the world's largest manufacturer of rolling bearings, housings, and bearing greases. It operates 110 factories in 28 countries (including Poland). The company has its own research institutes and is introducing new standards and types of rolling bearings to the market.

Single-row straight ball bearing

• double-sided seal with pressed steel protective plate (2Z)
• Low-noise bearing

Dimensions:

d = 55 mm

D = 90 mm

B = 18 mm

The most common bearings are single-row deep groove ball bearings. They are characterized by a simple design, are non-separable, and are suitable for operation at high rotational speeds. Furthermore, they generally do not require extensive maintenance.

Depending on your needs, deep groove ball bearings can be supplied in various designs, for example, with reduced or increased clearances, with higher accuracy classes, and with special cages adapted to high rotational speeds. Furthermore, deep groove ball bearings are available in many design variants.

An example of this is the use of bearings with 2Z type shields or 2RS type rubber seals, or with a groove on the N type outer ring, used to locate the bearing in the axial direction in the housing using an R type ring. Bearings with two shields or two rubber seals are filled by the manufacturer with an appropriate amount of plastic grease, sufficient for average operating conditions for the entire service life.

In the standard version, 2Z or 2RS type ball bearings can operate in the temperature range of -30 to +110°C. For operating conditions other than normal, e.g. high rotational speed or temperature, the manufacturer can supply bearings with special grease and with an appropriate degree of filling.

Sealed bearings do not require relubrication, which significantly simplifies their maintenance during operation. These bearings should not be washed or heated before installation. Bearings with shields and rubber seals are primarily intended for equipment with a rotating inner ring.

Designs in which the outer ring rotates pose a risk of lubricant leakage, even at relatively low rotational speeds. Thanks to their numerous design and quality variations, deep groove ball bearings are used in all industries.