HC Plastics News: Provides excellent alkali stress crack resistance for the automotive market Polyplastics Group announces the introduction of a new polybutylene terephthalate (PBT) resin that provides excellent alkali stress crack resistance for a wide range of automotive applications. The new grade DURANER 532AR also offers excellent hydrolysis/thermal shock resistance and electrical performance for chassis and engine compartment components. Polyplastics Introduces New "DURANEX(R) 532AR" PBT Resin Polyplastics Introduces New "DURANEX(R) 532AR" PBT Resin As the demand for durability, safety and reliability of automotive parts continues to increase, DURANER 532 AR has successfully reduced the risk of cracking of molded articles by preventing the penetration of alkali into the interior of the resin, thereby enhancing the toughness that contributes to the reduction of pressure. This alkalinity may be caused by rusting of metal parts. DURANER) 532AR is treated with a hydrolysis-resistant formulation that provides greater durability than standard materials. Recent tests have shown that DURANER 3300 and DURANER 531HS resistant to hydrolysis/heat shock are cracked within two hours when the sample is immersed in alkali, and no stress occurs when DURANER) 532AR is immersed for up to 200 hours. crack. Electrical components and sensors mounted near the engine are also typically inlaid. Since the linear expansion coefficients of metal and resin differ by about 10 times, in some cases, such as sudden changes in temperature, thermal shock fracture problems are caused. DURANER) 532AR also offers excellent thermal shock resistance to withstand these harsh environments. The DURANER) 532AR is ideal for installation in the chassis section and in the lower part of the vehicle. These parts may splash water and mud and come into contact with chemicals such as snow melting agents. This grade combines high reliability with long life, even in harsh environments. For more information, please visit https:// Baoli Plastics Introduction Polyplastics is a global leader in the development and production of engineering thermoplastic solutions. The group's broad product portfolio includes polybutylene terephthalate (PBT), polyoxymethylene (POM), polyphenylene sulfide (PPS), liquid crystal polymer (LCP) and cyclic olefin copolymer (COC). Polyplastics has more than 50 years of experience and is supported by a strong global network of R&D, production and sales resources. DURANER) is a registered trademark of Polyplastics Co., Ltd. in Japan and other countries. Editor in charge: Yao Chunlin Spherical roller bearings have two rows of rollers that are mainly subjected to radial loads, but also axial loads in either direction. It has a high radial load capacity, which is especially suitable for working under heavy loads or vibration loads, but cannot withstand pure axial loads. The raceway of the outer ring of this type of bearing is spherical, so its self-alignment performance is good, and it can compensate for the coaxiality error. Spherical Roller Bearings,Precision Ball Bearings,High Temperature Bearings,Spherical Roller Thrust Bearing Hebei Fangqiang bearing manufacturing Co., LTD , https://www.fangqiangbearing.com
There are two rows of symmetrical spherical rollers, the outer ring has a common spherical raceway, the inner ring has two raceways inclined to an angle with the bearing axis, has good self-alignment performance, when the shaft is bent or installed differently when the bearing can still be used normally, the self-alignment varies with the bearing size series, the general allowable self-alignment angle is 1~2.5 degrees, the load capacity of this type of bearing is larger, in addition to being able to bear the radial load, the bearing can also bear the axial load of two-way action, and has good impact resistance, In general, spherical roller bearings are allowed to operate at a lower operating speed.
