German igus bearings, igus models, igus prices

igus roller bearings with cylindrical rollers; relative to their diameter, the rollers are both thin and long. These rollers are called needle rollers. Despite having a small cross-section, the bearings still exhibit high load-carrying capacity. Needle roller bearings are equipped with thin and long rollers (roller diameter D ≤ 5mm, L/D ≥ 2.5, where L is the roller length), resulting in a compact radial structure. When the inner diameter size and load capacity are the same as other types of bearings, the outer diameter is minimized, making them particularly suitable for support structures with limited radial installation space. Depending on the application, bearings without inner rings or needle roller and cage assemblies can be selected. In this case, the journal surface of the shaft and the housing bore surface directly serve as the inner and outer rolling surfaces of the bearing. To ensure that the load capacity and operating performance are equivalent to those of bearings with rings, the hardness, machining accuracy, and surface quality of the raceway surfaces on the shaft or housing bore must be similar to those of the bearing ring raceways. This type of bearing can only withstand radial loads.

igus bearing classification

Based on the structure of the rolling elements and rings, they can be classified into: deep groove ball bearings, needle roller bearings, angular contact bearings, self-aligning ball bearings, self-aligning roller bearings, thrust ball bearings, thrust self-aligning roller bearings, cylindrical roller bearings, tapered roller bearings, mounted insert ball bearings, etc. 1) Deep groove ball bearings: Deep groove ball bearings have a simple structure and are easy to use. They are the most mass-produced and widely applied type of bearing. They are mainly used to withstand radial loads but can also withstand certain axial loads. When the radial clearance of the bearing increases, it functions like an angular contact bearing and can withstand larger axial loads. Applications include automobiles, tractors, machine tools, motors, water pumps, agricultural machinery, and textile machinery. 2) Needle roller bearings: Needle roller bearings are equipped with thin and long rollers (roller length is 3 to 10 times the diameter, and the diameter is generally not greater than 5mm), resulting in a compact radial structure. When the inner diameter size and load capacity are the same as other types of bearings, the outer diameter is minimized, making them particularly suitable for support structures with limited radial installation space. Depending on the application, bearings without inner rings or needle roller and cage assemblies can be selected. In this case, the journal surface of the shaft and the housing bore surface directly serve as the inner and outer rolling surfaces of the bearing. To maintain load capacity and operating performance equivalent to bearings with rings, the hardness, machining accuracy, and surface quality of the raceway surfaces on the shaft or housing bore must be similar to those of the bearing ring raceways. This type of bearing can only withstand radial loads. Examples include universal joint shafts, hydraulic pumps, sheet rolling mills, rock drills, machine tool gearboxes, automobile and tractor transmissions, etc. 3) Angular contact bearings: Angular contact ball bearings have higher limiting speeds and can simultaneously withstand radial and axial loads, as well as pure axial loads. Their axial load capacity is determined by the contact angle and increases as the contact angle increases. Common applications include oil pumps, air compressors, various transmissions, fuel injection pumps, and printing machinery. 4) Self-aligning ball bearings: Self-aligning ball bearings have two rows of steel balls. The inner ring has two raceways, and the outer ring raceway is spherical, providing automatic self-aligning capability. They can automatically compensate for coaxiality errors caused by shaft deflection and housing deformation, making them suitable for components where strict coaxiality of the support bore cannot be guaranteed. This type of bearing mainly withstands radial loads. While withstanding radial loads, it can also withstand small axial loads. It is generally not used for pure axial loads; if subjected to pure axial loads, only one row of steel balls will bear the load. Main applications include combine harvesters and other agricultural machinery, blowers, paper machines, textile machinery, woodworking machinery, bridge crane travel wheels, and transmission shafts. 5) Self-aligning roller bearings: Self-aligning roller bearings have two rows of rollers. They are mainly used to withstand radial loads but can also withstand axial loads in either direction. This type of bearing has high radial load capacity and is particularly suitable for operation under heavy loads or vibration loads, but it cannot withstand pure axial loads. It has good self-aligning performance and can compensate for misalignment errors. Main applications include paper machinery, reduction gears, railway vehicle axles, rolling mill gearbox housings, crushers, and various industrial gearboxes.

igus bearing advantages

1) Low friction resistance, low power consumption, high mechanical efficiency, and easy starting; 2) Standardized dimensions, interchangeability, ease of installation and disassembly, and convenient maintenance; 3) Compact structure, lightweight, and reduced axial dimensions; 4) High precision, high load capacity, low wear, and long service life; 5) Some bearings have automatic self-aligning capabilities; 6) Suitable for mass production, stable and reliable quality, and high production efficiency; 7) Transmission friction torque is much lower than that of hydrodynamic bearings, resulting in lower friction temperature rise and power consumption; 8) Starting friction torque is only slightly higher than rotating friction torque; 9) Bearing deformation is less sensitive to load changes compared to hydrodynamic bearings; 10) Only a small amount of lubricant is required for normal operation, and lubrication can be provided for extended periods during operation; 11) Axial dimensions are smaller than those of traditional hydrodynamic bearings; 12) Can simultaneously withstand combined radial and thrust loads; 13) Unique design delivers excellent performance over a wide load-speed range; 14) Bearing performance is relatively insensitive to fluctuations in load, speed, and operating speed.

igus bearing selection

There are various types of rolling bearings. The following factors can be considered for selection: a. Magnitude, direction, and nature of the load: Ball bearings are suitable for light loads, while roller bearings are suitable for heavy loads and impact loads. When a rolling bearing is subjected to pure axial load, thrust bearings are generally selected. When subjected to pure radial load, deep groove ball bearings or short cylindrical roller bearings are generally selected. When subjected to pure radial load along with a small axial load, deep groove ball bearings, angular contact ball bearings, tapered roller bearings, and self-aligning ball or self-aligning roller bearings can be selected. When the axial load is large, angular contact ball bearings with larger contact angles and tapered roller bearings can be selected, or a combination of radial bearings and thrust bearings can be used. This is particularly suitable for extremely high axial loads or when high axial rigidity is specifically required. b. Permissible speed: There are significant differences depending on the bearing type. Generally, bearings with low friction and low heat generation are suitable for high speeds. During design, efforts should be made to ensure that the rolling bearing operates below its limiting speed. c. Rigidity: When a bearing bears a load, elastic deformation occurs at the contact points between the bearing rings and the rolling elements. The amount of deformation is proportional to the load, and this ratio determines the bearing's rigidity. Bearing rigidity can generally be improved through preloading. Additionally, considering the combination and arrangement of bearings in the support design can improve the support rigidity. d. Self-aligning performance and installation errors: After the bearing is installed in its working position, poor installation and positioning often occur due to manufacturing errors. At this time, excessive loads may be borne by the bearing due to shaft deflection and thermal expansion, causing premature damage. Self-aligning bearings can automatically overcome defects caused by installation errors, making them suitable for such applications. e. Installation and disassembly: Tapered roller bearings, needle roller bearings, etc., belong to the category of separable bearings (i.e., so-called separable bearings), making installation and disassembly convenient.

Weidou Intelligent Technology specializes in selling German igus plain bearings, igus rolling bearings, igus spherical plain bearings, igus deep groove ball bearings, igus angular contact ball bearings, igus self-aligning ball bearings, igus thrust ball bearings, igus double-direction thrust angular contact ball bearings, igus combination bearings, igus thrust roller bearings, igus needle roller bearings, igus insert ball bearings, igus self-aligning roller bearings, igus flanged bearings, igus linear bearings, igus original imports from Germany. We welcome inquiries and orders from users.