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Exhibitors & products 2024

V.KAN EXPORT

Spherical Roller Bearing

Trade fair innovation

Description

As a rule radial spherical roller bearings have two rows of rollers with a common sphered raceway in the outer ring. They have higher radial load capacity compared to other types of bearings with equal dimensions and they are able to compensate for significant misalignment and shaft deflections (up to 3°). They can also accommodate the combined radial and axial load. However, it is not recommended to operate them under heavy axial loads, because only one row of rollers will work in this case. Radial spherical roller bearings are used in the supports of pumps, powerful fans, smoke exhausts, saw frames, gears, propeller shafts, rolling mills, and in the supports of other machines and mechanisms, which operate under heavy radial loads and inevitable misalignment of seats.

Bearings can be produced with both cylindrical and tapered bores in the inner rings. The latter is mounted on the tapered shaft neck or on an adapter or withdrawal sleeve. Radial spherical roller bearings are usually mounted on the long shafts subjected to significant deflection, or in the supports of detached housings. The bearings with adapter sleeves are mounted on smooth multi-supporting shafts. As a rule, bearing with the tapered bore as well as bearings with withdrawal sleeves are mounted on the terminal supports of the shaft or axis. The presence of a tapered bore in the bearings considerably facilitates their mounting and dismounting.

Lately radial spherical roller bearings in a sealed version with contact seals on both sides are more often used for heavy-duty operation; and usually seals come out slightly the dimensions of the bearing side surface, which requires some extra space in the bearing unit.

Radial spherical roller bearings have pressed steel, glass fiber reinforced polyamide, or machined brass cages.

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Trade fair innovation

Deep Groove Ball Bearing

Due to various application possibilities and relatively low prices, deep groove ball bearings are the most common out of all the variety of rolling bearings. They have a simple design and the ability to operate at high speed and moderate load. When operating, they do not practically need maintenance. These bearings are able to accommodate both the radial loads and the axial loads in both directions.

Compared with other types of rolling bearings, deep groove ball bearings operate with minimal friction losses. The alignment of seats for these bearings shall be kept within such limits that the misalignment of the outer rings relative to the inner rings was slight, even with the increased bearing clearance. The bearings shall be mounted on hard double-seat shafts which deflection under the influence of the external forces does not cause excessive misalignment of the shaft axis relative to the mounting bore axis.

Deep groove ball bearings with protective metal shields or contact and contactless seals are widely distributed. They are used in the cases when due to the limited size or maintenance inconveniences, mounting of special sealing devices to protect the bearing from dirt or to keep the lubrication in is undesirable.

Deep groove ball bearings are usually fitted with pressed steel cages. The bearings with more durable and strong cages made of glass fiber reinforced polyamide, which provide higher speed, low noise, and less weight are produced recently. Bearings with the particular requirements, operating in special conditions, as well as large-size bearings, are produced with brass, aluminum alloys, and other materials cages.