Cylindrical roller bearings are bearings that use cylinders as rolling elements, unlike balls in ball bearings. In bearings of this type, the cylindrical rollers bearings are in linear contact with the raceways. They have a high radial load capacity and are suitable for high speeds. There are different types designated as NU, NJ, NUP, N, NF (for single-row bearings), NNU, and NN (for double-row bearings depending on the design or absence of side ribs) .
Cylindrical Roller Bearings
Cylindrical Roller Bearings (Pressed Steel Cages)
Tanchin has high load rating "EW Series"
Cylindrical Roller Bearings (Pressed Steel Cages)
Cylindrical Roller Bearings (Machined Brass Cages)
Tanchin has high load rating "EM Series"
Cylindrical Roller Bearings (Machined Brass Cages)
Cylindrical Roller Bearings (Molded Polyamide Cages)
Bearings with molded polyamide cages (ET type) can be used continuously at temperatures between -40 and 120℃. If the bearings are used in gear oil, nonflammable hydraulic oil or ester oil at a high temperature over 100℃, please contact NSK beforehand.
Full-complement Cylindrical Roller Bearings
Cageless, full-complement cylindrical roller bearings have the maximum possible number of rollers and can sustain much heavier loads than cylindrical roller bearings of the same size with cages. On the other hand, high-speed capability is inferior to the bearings with cages.
The open-type single- and double-row bearings are mostly used in general industrial applications at low speed and under heavy load, and the shielded-type double-row bearings are often used in crane sheaves.
>> Table 1
Full-complement Cylindrical Roller Bearings
Cylindrical Roller Bearings for Sheaves
Features
Improved seal: Contact seal increases resistance to entry of water or foreign substances.
High load capacity: When used as a sheave bearing, radial and axial load capacities are increased
Corrosion resistance: Phosphate surface treatment improves resistance to rust.
Easy to apply grease: Holes provided on inner ring facilitate grease replenishment, even while the bearing is mounted.
Fewer surrounding parts: With snap rings for the outer ring, fewer parts are required around the bearing for a more cost-effective sheave.
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