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Greased bearings are maintenance-free:- Deep groove ball bearings sealed on both sides are lubricated with a high quality lithium soap grease with a mineral oil base, which has good anti‑corrosion characteristics. The grease filling is measured so that it is sufficient for the entire life of the bearing. As a result, these bearings are generally maintenance-free.

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A deep groove ball bearing is a type of bearing that has deep raceway grooves. These grooves are very close to the dimensions of the rolling elements, or balls, that move within them. This specific design allows these bearings to handle both radial and axial loads from different directions. The deep grooves ensure a tight fit between the balls and raceways, increasing the bearing's load capacity and overall durability.

Suitable for predominantly radial loads:- The balls are in contact with the raceways at one point only. Under purely radial load, the contact points between the rolling elements and raceways lie at the centre of the raceway. As a result, the connection between the contact points passes through the radial plane, i.e. the optimum load direction is a pure radial load.

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Deep groove ball bearings are versatile, self-retaining bearings. These bearings, which are of simple design, robust in operation and easy to maintain, are available in single row and double row designs and in open and sealed variants. The solid outer and inner rings have deep raceway grooves, with shoulders which are not generally interrupted by filling slots. Solid cages made from polyamide PA66 or brass, and sheet metal cages made from steel or brass, are used as standard cages. The bearings are open or sealed.

Contact seals (For lower speeds and higher requirements for sealing action):- As these seals are in contact with a defined contact pressure against their sliding surface, they provide very good sealing action against the egress of lubricant and ingress of moisture and dust. Attention must, however, be paid to the loss of energy resulting from friction at the sealing contact. Furthermore, in bearings with contact seals, the bearing speed is restricted by the permissible sliding velocity at the seal lip, i.e. the speed suitability of these bearings is lower than for open bearings or bearings with non-contact seals. Deep groove ball bearings with contact seals on one or both sides have the suffixes RS and 2RS

Deep groove ball bearings are among the most widely used because of their versatility and performance. Reasons to choose them include: High Load Capacity: They can bear both radial and axial loads, making them versatile for various applications. High-Speed Capability: These bearings can operate efficiently at high speeds, which makes them suitable for numerous industrial and automotive uses. Simplicity and Durability: With a straightforward design, deep groove ball bearings are durable and relatively easy to maintain. Versatility: Useful in a variety of applications, from electric motors to household appliances and more.

Self-aligning ball bearings and deep groove ball bearings serve different functions based on their design: Self-aligning ball bearings: Ideal for scenarios with alignment errors or shaft deflections, they adjust to angle changes within the machinery, optimizing operation. Deep groove ball bearings: Designed to handle radial and axial loads efficiently but do not compensate for misalignments.

Capable of supporting axial loads in both directions:- Due to the deep raceway grooves in the bearing rings and the narrow osculation between the raceway grooves and balls, single row deep groove ball bearings can support axial loads in both directions. The axial load carrying capacity is dependent, for example, on the bearing size, the internal construction and the operating clearance. If the axial load is too high, however, this can increase the running noise and considerably reduce the operating life of the bearings.

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Non-contact seals (For high speeds and lower requirements for sealing):- Non-contact seals are particularly suitable for applications with high speeds and high requirements for low heat generation. They are free from friction, except for a small amount of lubricant friction in the sealing gap. As a rule, non-contact seals do not undergo wear and therefore have an unlimited operating life. Deep groove ball bearings with non-contact seals on one or both sides have the suffixes RZ and 2RZ; the suffixes Z and 2Z indicate seals on one or both sides with sealing shields.

The differences between these two types of bearings primarily lie in their design and load handling capabilities: Angular contact ball bearings: Designed chiefly to handle axial loads in one direction and are capable of operating at high speeds. They are set at an angle to bear loads and are typically used in pairs. Deep groove ball bearings: Although able to handle radial and axial loads, they are typically better for applications that require less axial load capacity compared to angular contact bearings. Each type fits specific applications best, depending on the requirements for load, speed, and alignment.

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