Since the birth of the LED industry, various applications have been pushing up its demand, including LCD backlights, LED lighting, etc., making the LED industry always show a sustained high growth trend. The scale of China's LED market has developed rapidly in recent years. According to the data of China Industrial Information Network, in 2015, China's LED market reached 424.5 billion yuan, a year-on-year increase of 21%, and still maintain a relatively high growth rate. The division of labor in the industry chain is clear, and the scale advantage becomes more and more obvious. The LED industry chain mainly includes raw materials, equipment, upstream chip manufacturing, midstream LED packaging and downstream LED applications. China's LED industry started late, and most manufacturers started from packaging and gradually entered upstream chip production. At present, there are fewer domestic LED upstream and midstream enterprises, which makes the epitaxial wafer and chip industry have higher industrial concentration. However, there are more enterprises involved in packaging and application, but there are fewer enterprises that have economies of scale, lower industrial concentration, and relatively competitive competition. fierce. Upstream chip entry barriers High LED industry chain is a high entry barrier for LED chip manufacturing industry: it requires large-scale capital investment and long-term technology accumulation. This has also led to a large-scale reduction in China's LED chip manufacturing companies since 2011. UBS (UBS) expects that there are about 10 companies that can mass-produce LED chips in China. Since 2014, major LED chip manufacturers in China have successively added LED chip business, resulting in overcapacity, price drop, and some companies have suffered serious losses. In 2015, China's LED chip production reached 391.821 billion, an increase of 24.32%. After experiencing investment heat and overcapacity, the LED chip industry gradually returned to rationality in 2016, and some chip manufacturers reduced the investment in LED chips and digested inventories. According to the global LED manufacturers' LED package components revenue rankings, Nichia was still in the leading position in 2015, OSRAM OPTO and Lumileds are closely following. Korean manufacturers such as Samsung have experienced a decline in revenue due to the decline in backlight applications and fierce price competition. Due to the fierce competition in LED prices, most LED manufacturers' revenues have declined. Coupled with the impact of the appreciation of the US dollar, some manufacturers' performance after conversion into the US dollar has declined. The overall development of LED packaging in China was stable. The output value of 2015 reached 61.5 billion yuan, a year-on-year increase of 19%. From the production end point of view, the overall growth of LED packaged devices production reached 50%, but because the average price dropped too fast, dragging the overall output value of the rapid growth. Downstream applications refer to finished LED products, including LED displays, LED lighting products and a wide range of LED lighting products. Due to the relatively low threshold of downstream industries and the influx of large numbers of enterprises, the fierce price war between manufacturers has led many companies to transform, or to differentiate products, small-pitch LED displays, various shaped screens, creative products to enter the market, and Good results. At present, domestic LED has gradually gained good application and promotion in the fields of general illumination, backlight, landscape lighting, display screen, traffic signal, vehicle lighting and household electronic consumption.

Tapered Roller bearings are radial thrust rolling bearings with tapered roller. There are two kinds of cone angle and big cone angle .Small cone angle mainly bear radial direction load primarily radial and axial loads, often used in pairs, reverse installation, inner and outer ring can be installed separately, in installation using radial and axial clearance can be adjusted; Big cone angle mainly bear axial load primarily of axial and radial load, is generally not used to bear alone the pure axial load, as to the pair (end with the same relative installation) can be used to carry pure radial load.

tapered 1


Tapered roller bearings are widely used in automobile, rolling mill, mining, metallurgy, plastic machinery and other industries.

tapered 2

Range of size are below:

Single row tapered roller bearing:

Inner diameter range: 20mm ~ 1270mm.

Outer diameter range: 40mm ~ 1465mm.

Width: 15mm ~ 240mm.

Double row tapered roller bearing:

Inner diameter range: 38mm ~ 1560mm.

Outer diameter range: 70mm ~ 1800mm.

Width: 50mm ~ 460mm.

Four row tapered roller bearings:

Inner diameter range: 130mm ~ 1600mm.

Diameter range: 200mm ~ 2000mm.

Width: 150mm ~ 1150mm.

The precision we can produce P0~P2.


We believe that we can supply the best service and price for your, hope to make a long-term cooperation with you. If you have any question please do not hesitate contact with us. We keep warmly welcome you visit us in any time.



Tapered Roller Bearing

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