Cross roller bearing structure characteristics and series models

Cross roller bearing is a kind of special type bearing division of inner ring and outer ring spinning. By integral inner ring or outer ring, after loading roller and retainer interval, and cross roller bearing ring fixed together, in order to prevent the separation of each other, so the installation of cross roller bearing ring when the operation is simple. Is structure characteristic: cross roller bearing, cylindrical roller in a 900 V groove rolling surface to be vertically arranged each other through the isolation piece, so cross roller bearings can withstand radial load, axial load and torque load in the direction of the load. The size of the inside and outside the circle is miniaturization, thin form is more close to the limit of small size, and high rigidity, and the precision can reach P4, P2. Therefore suitable for industrial robot joint and rotation, the rotation of the machining center machines, mechanical rotary department, precision rotary worktable, medical machine, calculator, IC manufacturing devices and other equipment. From the picture above you can see, we mainly introduce the cross roller bearing of the RA/RB/RE/RU/CRB/CRBH/YRT/ZKLDF these series models. RB ( Outer ring type, inner ring spinning with) This series of models are crossed cylindrical roller bearing, basic, inner and outer ring size is minimal to miniaturization, its structure is the outer ring is divided, the inner ring design is an organic whole, the inner ring spinning of high precision parts suitable for requirements. RU, XRU ( Inner and outer ring size) This series model is due to the processing of mounting holes, there is no need for a fixed flange and brackets. In addition, as a result of using arrange ushering the integration of internal and external ring structure, the installation will have little impact on performance, thus can obtain the stable rotation accuracy and torque. Can be used for outer ring and inner ring spinning. RE ( Type division of the inner ring and outer ring spinning with) This series model is produced by the design concept of RB type new type, main dimensions and RB same type. Its structure is the inner ring is split type, outer ring design is an organic whole, is suitable for outer ring rotation of high precision parts. RA ( Outer ring type, inner ring spinning with) This series model is the RB type inner and outer ring thickness decreases to the limit of the compact. Suitable for the need of light weight, compact design, such as robots and mechanical rotating parts. RU, XRU ( Inner and outer ring size) This series model is due to the processing of mounting holes, there is no need for a fixed flange and brackets. In addition, as a result of using arrange ushering the integration of internal and external ring structure, the installation will have little impact on performance, thus can obtain the stable rotation accuracy and torque. Can be used for outer ring and inner ring spinning. SX type ( Division of outer ring, internal ring spinning with) Its structure is similar to RB series, outer ring is two integral structure, through three fixed ring joint, the inner ring body design, suitable for the requirements the inner ring spinning of high precision parts. CRBH type ( Inner and outer ring size) This series of models of internal and external ring structure is an organic whole, used for outer ring and inner ring spinning. Thrust roller bearing thrust cylindrical roller bearing according to bearing roller number of columns is divided into single row cylindrical roller bearings, double row cylindrical roller bearings. The axial can withstand heavy load and vibration load. Single row cylindrical roller thrust bearing can withstand single direction axial load and limit the axial displacement of a direction. Double row cylindrical roller thrust bearing can withstand the two-way axial load and limit the axial displacement of two direction. Crossed tapered roller precision bearing with two groups of raceway and roller, these bearings are mutually orthogonal combination, roller relatively. Bearing the cross section of highly similar to single bearing, thus saves space and bearing material, big cone Angle and taper overall effective geometric designs make the bearing span is several times of the width of the bearing itself. Crossed tapered roller can withstand the high overturning moment, suitable for machine tool, including vertical boring machine and grinding machine, machine tool precision round table indexing table, large gear hobbing machine, turret, industrial robots, etc. ZKLDF turntable bearing ZKLDF series thrust angular contact ball bearing consists of an integral outer ring and two inner ring and two sets of steel ball and cage components, contact Angle of 60 degrees. Outer ring and inner ring with mounting holes, convenient by connecting bolt bearing for fixed installation. Bearing itself through the connecting bolt is fixed, ensure the installation of transportation and handling. ZKLDF thrust angular contact ball series of turntable bearing on either side of the sealing cover, can prevent the external contaminants and impurities to enter and internal leakage of grease. ZKLDF thrust angular contact ball series turntable bearing using barium compound base grease lubrication, can also through the oil hole on the outer ring lubrication. ZKLDF thrust angular contact ball series turntable bearing adopts two-way contact Angle of 60 degrees, the structure of the double design it can bear radial load, bidirectional axial load and overturning moment; Special structure of brass cage design, make it has higher strength and lower motor torque; So this series of bearing don't fit in high speed, long running and have high request for rigidity and precision. ZKLDF has low friction, high rotary precision, high limit speed, etc, can withstand high inclined axial and radial load and has a high rigidity. This kind of bearing is especially suitable for application in compound load and precision of the domain, is widely used in machine tool rotary table, grinding head, and a variety of testing equipment. YRT series turntable by a centripetal thrust bearing seat, a thrust to the spindle, a thrust washer, two needle cage components and a set of radial cylindrical roller. The installation of the seat ring and shaft uniform with a screw hole. This type of bearing has high axial and radial load capacity. High tilt stiffness and high precision. Apply to the rotary table, chuck and iron and the bearing measurement and experimental configuration of the cutting tools. This type of bearings for matching the requirements of the parts of the equipment is also higher. When installation should install screw tightening torque control.