cjbearings
Radial Needle Roller and Cage Assembly
Radial Needle Roller and Cage Assembly
1、radial needle roller and cage assemblies is independent of the rolling element retainer, the wide distance between two guiding surfaces can accurately guide the needle rollers, the correct position and can keep the needle. This type of bearing is suitable for shaft and hole can be used as a raceway, only the shaft and the bearing seat hole raceway machining to the specified size accuracy and geometric accuracy, can ensure a high rotation accuracy of minimum space.
2、radial needle roller and cage assembly structure form is single and double row, in order to meet the special need, also can be made into a split type needle roller and cage assemblies (see main structure form).
3、of this kind of bearings keep type frame structure are mainly M type and K type cage cage, cage is made of high quality carbon structural steel, also can according to need to use 15CrMo, 20CrMo and other low carbon alloy steel or plastic (nylon) cage, steel cage after the chemical treatment, has the strength and sufficient wear resistance, the plastic holder allows the operating temperature of 120 DEG C, such as short-term operation Department to allow 180 C.
4、needle group, in the same set of components in the needle, the average diameter of the upper and lower deviation is 2-3 mu m, needle logo color and diameter of packet as shown in Table 1, we usually provide red, blue and white logo needle acupuncture group, the acupuncture group is enough to meet the needs of the general working conditions of work clearance, special requirements, using the green and yellow sign needle.
5、axis and the shell seat hole and the component with the technical requirements:When the needle roller and cage assemblies between the shaft and housing operation, machining tolerances bearing radial clearance depends on the shaft and housing raceway, dimensional tolerances when the shell hole is G6, size tolerance shafts recommended in Table 2.In order to make the needle group reached the load capacity, the raceway surface hardness up to 58-64HRC, the depth of hardened layer of 0.6-1mm, surface roughness Ra is less than 0.2 M. The raceway surface shape tolerances in conformity with the relevant standards.
6、we not only produce large amount of metric and imperial various kinds of "assembly" non-standard "component" can also provide special requirements, such as the need to please contact our technical center.
The main structural form
HK keyhole stamping outer ring needle roller bearings
K radial needle roller and cage assembly
K--D split radial needle roller and cage assembly
K--ZW double row radial needle roller and cage assembly
K--DZW split radial needle roller and cage assembly
Radial Needle Roller and Cage Assembly
Radial Needle Roller and Cage Assembly
1、radial needle roller and cage assemblies is independent of the rolling element retainer, the wide distance between two guiding surfaces can accurately guide the needle rollers, the correct position and can keep the needle. This type of bearing is suitable for shaft and hole can be used as a raceway, only the shaft and the bearing seat hole raceway machining to the specified size accuracy and geometric accuracy, can ensure a high rotation accuracy of minimum space.
2、radial needle roller and cage assembly structure form is single and double row, in order to meet the special need, also can be made into a split type needle roller and cage assemblies (see main structure form).
3、of this kind of bearings keep type frame structure are mainly M type and K type cage cage, cage is made of high quality carbon structural steel, also can according to need to use 15CrMo, 20CrMo and other low carbon alloy steel or plastic (nylon) cage, steel cage after the chemical treatment, has the strength and sufficient wear resistance, the plastic holder allows the operating temperature of 120 DEG C, such as short-term operation Department to allow 180 C.
4、needle group, in the same set of components in the needle, the average diameter of the upper and lower deviation is 2-3 mu m, needle logo color and diameter of packet as shown in Table 1, we usually provide red, blue and white logo needle acupuncture group, the acupuncture group is enough to meet the needs of the general working conditions of work clearance, special requirements, using the green and yellow sign needle.
5、axis and the shell seat hole and the component with the technical requirements:When the needle roller and cage assemblies between the shaft and housing operation, machining tolerances bearing radial clearance depends on the shaft and housing raceway, dimensional tolerances when the shell hole is G6, size tolerance shafts recommended in Table 2.In order to make the needle group reached the load capacity, the raceway surface hardness up to 58-64HRC, the depth of hardened layer of 0.6-1mm, surface roughness Ra is less than 0.2 M. The raceway surface shape tolerances in conformity with the relevant standards.
6、we not only produce large amount of metric and imperial various kinds of "assembly" non-standard "component" can also provide special requirements, such as the need to please contact our technical center.
The main structural form
HK keyhole stamping outer ring needle roller bearings
K radial needle roller and cage assembly
K--D split radial needle roller and cage assembly
K--ZW double row radial needle roller and cage assembly
K--DZW split radial needle roller and cage assembly