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Double row tapered roller bearings are separable bearings and are a major category of tapered roller bearings. Double row tapered roller bearings are often used in high-speed rail bearings because of their excellent sealing properties and preset clearance. Shandong TFL Bearing provides various types of long-life tapered roller bearings and new sealed double row tapered roller bearings.
Double row tapered roller bearings have many structures, the most common is the 35000 type, which has a double raceway outer ring and two inner rings. There is a spacer ring between the two inner rings. Changing the thickness of the spacer ring can adjust the clearance. This type of bearing can bear bidirectional axial load while bearing radial load, and can limit the axial displacement of the shaft and housing within the axial clearance range of the bearing.There are two arrangements of double row tapered roller bearings, one is back-to-back （SKF-TDO type）and the other is face-to-face（SKF-TDI type）.Railway bearings are generally composed of one or more sets of double row tapered roller bearings.
As a common mechanical part, double row tapered roller bearings can bear heavy loads and maintain high speeds, and require very accurate installation positions, so they have high reliability, precision and lifespan. It is widely used in high-load and high-speed machinery and equipment, such as cranes, mining machinery, heavy-duty trucks, etc
Single row tapered roller bearings are composed of an inner conical surface and an outer conical surface. They have high load-bearing capacity and high-speed resistance. They are suitable for mechanical equipment with low accuracy requirements, they are suitable for low-speed heavy loads, heavy-load low-speed conditions and wedge shapes. Regulation and other fields. However, due to factors such as design limitations and material strength, single-row tapered roller bearings can only withstand limited radial loads. When using them, care must be taken so that the load is not too large;
Double row tapered roller bearings are composed of two inner conical surfaces and one outer conical surface. They can withstand higher radial and axial loads and are suitable for medium-to-high-speed, high-speed and heavy-load conditions. Compared with single-row tapered roller bearings, double-row tapered roller bearings have a higher load-bearing capacity and are suitable for mechanical equipment with higher precision requirements and larger loads.
QJ218-N2-MA belongs to a four-point contact ball bearing. It has an inner diameter of 90mm, an outer diameter of 160mm, a thickness of 30mm, a single-row bearing with locating grooves, a solid brass cage and an outer ring guide.
There are countless brands of linear motions, and it is often difficult to choose when purchasing. Today we will take stock of the characteristics of the world's 10 ten linear motion brands. Understanding these brands will help you make targeted choices.
Bearings, as one of the key components of mechanical equipment, their normal operation is critical to the performance and life of the equipment. However, when abnormal sounds occur in bearings, it often signals potential problems and failures. In this essay, we will discuss in depth the causes, effects and coping strategies of abnormal bearing sounds.
Our Shandong Tefule Bearing Factory is located in the Bearing Industry Base of Liaocheng, Shandong Province. It is committed to the production and creation of automotive bearings and agricultural machinery bearings.
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