Needle retainer assembly needle bearing K90*98*27
Product Description:
NEEDLE RETAINER ASSEMBLYNeedle retainer assembly is a kind of independent bearing unit with high load capacity and rigidity especially applicable for the tray of shaft and seat holes with the unit which is limited in radical dimension.Each needle have excellent operative characteristic due to each needle exactly guided and kept by the retainer
Structure KNeedle retainer assemblyK...ZWDouble row needle retainer assemblyNeedle retainer assembly is divided into two series : single row and double row. In the case of crank shaft where difficulty of using and mounting occur , We will supply the divided structure.In general case, M type punched retainer is used, besides, there are metal solid retainer, fiber glass reinforced nylon 66 retainer. The latter can work under the temperature of 120°C for a long period while it can even operate under 150°C for short time.Precision The dimensional tolerances of DEBU needle retainer are listed in Table 1 . When bearings of more than two types are used in parallel on a same shaft , the needles must belong to the sub group with same value. The retainer width tolerance Bc is -0.2/-0.55mm.Table 1 needle diameter tolerance Precision grade Needle diameter tolerance G20~-2-2~-4-4~-6G30~-3-3~-6-6~-9 Combination The radical gap of needle retainer assembly depends on the machined precision of the inner and outer traysand the needles. Table 2 shows the combination recommended as per the different operational conditions. TN=Plastic,permissble operating temperature:they will operate well at temperature up to 120°C over extended period,Limiting speed for grease lubrication 60% of the given values are permissible.For special requirements,please contact RTL sales office for availability.
About Us
Established in 2002, Changzhou Jiangsu,nearby ShanghaiMnufacturer needle bearings ,cylindrical roller bearingsCylindrical rollers of bearings, rollers & pins Have 3 production lines and over 40 sets of special equipment. Have 100 workers, and 4000 square meter of factory Annual output of rollers is 100 million piecesHave exported to clients in America,India, Japan, Australia and ItalyHave past ISO 9001 & ISO 14001
