Tapered Roller Bearings

Tapered roller bearings are a kind of rolling bearings that can carry radial and axial loads at the same time, and its rolling body adopts tapered rollers, and the rollers and the inner and outer ring raceways are in line contact, so as to improve the load-carrying capacity. According to the structure form, tapered roller bearings can be divided into single-row, double-row, and four-row types. In industrial machinery, tapered roller bearings, with excellent load-carrying capacity and durability, are used in rolling mills, speed reducers and heavy equipment and other fields, becoming an indispensable key component in many mechanical systems.
LNB Bearings offers a full range of high-quality, competitively priced tapered roller bearings and can be able to provide custom options to meet specific customer demands.

Single Row Tapered Roller Bearings

Double Row Tapered Roller Bearing

Four Row Tapered Roller Bearings

1. What is tapered roller bearing

Tapered roller bearings are a kind of roller bearings that use tapered rollers as rolling bodies, specially designed to conform to the load, able to withstand radial and axial loads at the same time. Tapered roller bearings are usually composed of inner ring, outer ring, rollers and cage, the inner ring and outer ring of the raceway are tapered, rollers in which along the taper rolling, this geometric design of the rolling body and the inner and outer ring to form a specific contact angle (usually 15 ° -30 °), can simultaneously withstand radial loads and one-way axial load, load carrying efficiency than the ordinary roller bearings to improve more than 3 times.
Tapered roller bearings can withstand high loads, high impact and both axial and radial force conditions, so they are widely used in automobile wheels, gearboxes, mining machinery, rolling equipment, railroad locomotives and other fields, to provide stable support and good running performance for mechanical equipment.

2. Types of Tapered Roller Bearings

(1)Single Row Tapered Roller Bearings
Single row tapered roller bearings consist of an inner ring, an outer ring, a set of rollers and cage, can simultaneously withstand radial loads and one-way axial load. Since they can only withstand single direction axial force, they usually need to be installed in pairs to balance the axial force in different directions.

(2)Double Row Tapered Roller Bearings
Double row tapered roller bearings consist of two inner rings, two outer rings and two sets of rollers, can simultaneously withstand radial and bi-directional axial loads, so they are suitable for mechanical equipment that requires high rigidity and axial positioning.

(3)Four Row Tapered Roller Bearings
Four rows of tapered roller bearings are composed of four sets of rollers and raceways, which are mainly used to withstand larger radial loads and can adapt to certain axial forces. This kind of bearing has strong rigidity and high load carrying capacity, but the friction resistance is larger.

3. Tapered Roller Bearing Characteristics

(1)High load-carrying capacity: Because of the line contact between the roller and the raceway, the bearing can withstand large radial and axial loads, especially suitable for heavy load conditions.

(2)Can simultaneously withstand the composite load: Single-row tapered roller bearings can withstand radial load and one-way axial load, double row and four-row tapered roller bearings can simultaneously withstand radial and bi-directional axial load, suitable for higher rigidity requirements of the equipment.

(3)Low friction and wear resistance: Optimized roller end design and raceway contact geometry reduces the coefficient of friction and improves the durability of the bearing, suitable for long-term high-speed operation.

(4)Separable structure, easy installation and maintenance: Tapered roller bearings inner ring assembly (inner ring + roller + cage) and outer ring can be installed separately, easy to disassemble and replace, improve maintenance efficiency.

(5)Adjustable preload to improve running accuracy: When mounting, the bearing clearance can be adjusted or preload force can be applied to optimize the bearing fit and improve the rotational accuracy and rigidity of the shaft, which is suitable for high-precision equipment.

4. Tapered Roller Bearing Application

Tapered roller bearings are widely used in many industries and mechanical equipment since they possess high load-carrying capacity and can support both radial and axial loads, and are especially suitable for heavy load, shock load, and precise axial positioning conditions.

(1)Automotive industry: Tapered roller bearings are applied to the wheel hubs, gearboxes, differentials and other parts of automobiles. As automobiles need bearing compound loads when driving, like radial impact and axial force, and tapered roller bearings possess the capability of keeping stable support for guaranteeing the safety and durability of vehicle driving.

(2)Industrial machinery: Tapered roller bearings have widespread usage in machine tool spindles, speed reducers, gear transmission systems and heavy machinery and equipment. As industrial equipment usually operates under high load, high speed or complex load conditions, tapered roller bearings are able to provide sufficient rigidity, reduce mechanical vibration, and improve machining accuracy and operational stability.

(3)Rail and rail transport: Tapered roller bearings are used for locomotive and rolling stock axle boxes, gearboxes and other key components. Railway locomotives are subject to huge loads and long-term impacts in operation, so the wear resistance and high load carrying capacity of this bearing are very crucial for the stability and service life of the train.

(4)Mining, construction and wind power equipment: Tapered roller bearings also play an important part. For example, mining crusher, excavator, crane, and conveying equipment usually need to work in severe conditions, the tapered roller bearings have good impact and contamination resistance.