Products
Main production program is production of tapered and cylindrical roller bearings in metric and inch dimensions, in outer diameter from 35 to 560 mm.
Catalog pdf: 
Tapered Roller Bearings
Tapered roller bearings are widely used across a variety of industries, particularly in the manufacturing of automobiles, tractors, agricultural machinery, rolling mills, earth-moving equipment, machine tools, and similar applications. The design of bearings with a large number of rolling elements in a single row allows them to achieve high load capacity in both radial and axial directions. The axial load capacity depends on the contact angle.
The production program includes over 225 types of tapered roller bearings, both standard and non-standard, manufactured according to ISO and STN standards. Standard tapered roller bearings are produced in the series 302, 303, 313, 320X, 322, 323, 329, 330, 331, 332, and T7FC. Bearings with a large contact angle (e.g., series 331) are particularly suitable for accommodating higher axial loads.
Single-row tapered roller bearings are typically arranged in pairs because a single bearing can only support axial load in one direction. The bearings are separable; the inner ring with rolling elements and cage forms a single assembly unit. Single-row tapered roller bearings listed in the dimensional tables comply with the ISO 355 international dimensional standard.
In addition to the basic range listed in the tables, many other types and sizes of tapered roller bearings are manufactured, including bearings with flanges on the outer ring, matched AXA/DF bearings, and four-row tapered roller bearings.
Cylindrical Roller Bearings
Cylindrical roller bearings are designed to carry high radial loads and operate at high speeds due to their line contact between rolling elements and raceways. They use cylindrical rollers instead of balls, which provides a larger contact area, reducing stress and increasing load capacity. The inner and outer rings of cylindrical roller bearings can have integral flanges that guide the rollers and allow for axial load support in one or both directions, depending on the design.
The NU type has two fixed flanges on the outer ring and no flanges on the inner ring. This allows the inner ring to move axially relative to the outer ring, making it suitable for applications where thermal expansion or shaft movement must be accommodated.
The NJ type has two fixed flanges on the outer ring and one fixed flange on the inner ring, allowing it to support radial loads and limited axial loads in one direction. The NUP type is similar to the NJ type but includes a loose flange ring (or thrust collar) on the inner ring’s opposite side. This design enables it to support axial loads in both directions while still maintaining high radial load capacity.
These bearing types are commonly used in gearboxes, electric motors, pumps, and heavy machinery. Proper selection between NU, NJ, and NUP depends on whether the application requires free axial movement, one-direction axial guidance, or two-direction axial guidance in addition to high radial load handling.