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RA15008UUCC0P5 150*166*8mm Super Precision Cross Roller Bearingfor Machine Tool
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Brand Name:MONTON
Model Number:RA15008UUCC0P5
Price:USD
Supply Ability:10000PCS/WEEK
Delivery Time:7-35 days
Certification:ISO9001
Payment Terms:T/T
Company Data
Site Member
Contact Person
Dave-Lee
Business Type:
Manufacturer Importer Exporter
Officials:
No.119 JianShe Road,luoyang city 471000,China
Quality:
Quality Certifitation Available
Product Details
Company Profile
Product Details
RA15008UUCC0 Cross Roller Bearing Super Precision Bearings Machine Tool
| shaft diameter | Identification number | Main dimensions | Shoulder height | Basic load rating(radial) | weight | |||||||
| inner ring | outer ring | Roller pitch circle diameter dp | width | Greasing hole | Chamfer | ds | Dh | C | C0 | Kg | ||
| d | D | B B1 | ||||||||||
| (mm) | (mm) | (mm) | (mm) | (mm) | φ | r(min) | kN | kN | ||||
| 150 | RA15008 | 150 | 166 | 157 | 8 | 1 | 0.5 | 153.5 | 160.5 | 8.82 | 20.6 | 0.2 |
Crossed Roller Bearing
Features of the Crossed Roller Ring
Structure and Features
With the Cross-Roller Ring, cylindrical rollers are arranged with each roller perpendicular to the adjacent roller, in a 90° V groove, separated from each other by a spacer retainer. This design allows just one bearing to receive loads in all directions including radial, axial and moment loads. Since the Cross-Roller Ring achieves high rigidity despite the minimum possible dimensions of the inner and outer rings, it is optimal for applications such as joints and swiveling units of industrial robots, swiveling tables of machining centers, rotary units of manipulators, precision rotary tables, medical equipment, measuring instruments and IC manufacturing machines.
High Rotation Accuracy
The spacer retainer fitting among cross-arrayed rollers prevents rollers from skewing and the rotational torque from increasing due to friction between rollers. Unlike conventional types using steel sheet retainers, the Cross-Roller Ring does not cause unilateral contact of roller or seize. Thus, even under a preload, the Cross-Roller Ring provides stable rotation.
Since the inner and outer rings are designed to be separable, the bearing clearance can be adjusted.
In addition, a preload can be applied. These features enable accurate rotation.
Easy Handling
The inner and outer rings, which are separable, are secured to the Cross-Roller Ring body after being installed with rollers and spacer retainers in order to prevent the rings from separating from each other. Thus, it is easy to handle the rings when installing the Cross-Roller Ring.
Skewing Prevention
The spacer retainer keeps rollers in their proper position, thereby preventing them from skewing(tilted rollers). This eliminates friction between rollers, and therefore secures a stable rotational torque.
Increased Rigidity (Three to Four Times Greater than the Conventional Type) Unlike the thin angular ball bearings installed in double rows, the cross array of rollers allows a single Cross-Roller Ring unit to receive loads in all directions, increasing the rigidity to three to four times greater than the conventional type.
Large Load Capacity
(1) Compared with conventional steel sheet retainers, the spacer retainer allows a longer effective
contact length of each roller, thus signifi cantly increasing the load capacity. The spacer retainer guides rollers by supporting them over the entire length of each roller, whereas the conventional type of retainer supports them only at a point at the center of each roller. Such one-point contact cannot suffi ciently prevent skewing.
(2) In conventional types, the loaded areas are asymmetrical between the outer ring and the inner ring sides around the roller longitudinal axis. The greater the applied load is, the greater the moment becomes, leading end-face contact to occur. This causes frictional resistance, which hinders smooth rotation and quickens wear.
Types of the Cross-Roller Ring
Types and Features
Model RU (Integrated Inner/Outer Ring Type)
Since holes are drilled for mounting, the need for a presser fl ange and a housing is eliminated. Also, owing to the integrated inner/outer ring type stryucture with washer, there is almost no effect from installation on performance, allowing stable rotational accuracy and torque to be obtained. Can be used for both outer and inner ring rotation.
Model RB (Separable Outer Ring Type for Inner Ring Rotation)
Cross-Roller Ring basic type, with a separable outer ring, and an inner ring integrated with the main body.It is used in locations where the rotational accuracy of the inner ring is required. It is used, for example, in the swivel portions of index tables of machine tools.
Model RE (Two-piece Inner Ring Type for Outer Ring Rotation)
Main dimensions are the same as model RB. This model is used in locations where the rotational accuracy of the outer ring is required.
Model RA (Separable Outer Ring Type for Inner Ring Rotation)
A compact type similar to model RB with the thinnest possible inner and outer rings. Optimal for locations requiring a light-weight and compact design such as the swivel portions of robots and manipulators.
Selecting a Cross-Roller Ring
The following diagram shows a typical procedure for selecting a Cross-Roller Ring.
Fit
Fitting of Models RU
Fitting for model RU is typically not required. However, for fi tting requiring positioning accuracy, h7 and H7 are recommended.
Fitting of Models RB, RE and RA
For the fi tting of models RB, RE and RA, we recommend using the combinations indicated in Table1 .
Table1 Fitting of Models RB, RE and RA
Fitting of the USP-grade
For the fi tting of the USP-grade series of models RB and RE, we recommend using the combinations
indicated in Table2 .
Table2 Fitting of the USP-grade
Fitting of Model RA-C
Since model RA-C is thin and its outer ring is split in one position, it is considerably affected by fit.
We recommend measuring the inner and outer diameters of the bearing and applying a slight interference
fit to match the diameters.
Example of Assembly
Fig.2 and Fig.3 show examples of installing the Cross-Roller Ring.
Model Number Coding
Model number confi gurations differ depending on the model features. Refer to the corresponding
sample model number confi guration.
Cross roller rings with integrated inner and outer rings.
Model RU
Models RB, RE, RA and RA-C
Company Profile
LUOYANG MONTON BEARING SCIENCE & TECHNOLOGY CO.,LTD.
MONTON bearing a main manufacturers leader of high precision bearings in China was established in 2001 locate in Luoyang--“Ancient Imperial Capital and Peony Flower City”,we specialized in the bearing production research and development more than 20 years , focus on the development of "High-tech, High precision, Advancing, customized" bearings development .MONTON covers an area of of 35000 sq.m., building area of 20000 sq.m., including office area 3000 sq.m., research and development center of 500 sq.m., and international marketing & reception center 2000sq.m.Our mission is to provide customers with complete solution, including design and development, manufacturing, testing and evaluation, and excellent after-sales service.The factory is located in the Bearing Industry Park of Yiyang County, Luoyang City, Henan Province.
MONTON bearing mainly produce high precision angular contact ball bearing, ball screw support bearing,Low temperature bearing,High speed motor bearings, military thin section ball bearing,special high precision bearing, crossed roller bearing,harmonic drive bearing,thrust bearing stack,Tungsten Carbide Radial Bearing, military thin section ball bearing,tandem bearing,cylindrical roller bearing, customized bearing and bearings parts, The bearing accuracy at P5/P4/P2 level, rolling elements from φ1mm to 160mm, precision degree Ⅰ、Ⅱ.We Contributions to important scientific research projects of several well-known universities, including Henan University of Science and Technology, Dalian University of Technology, Harbin Institute of Technology, Beijing University of Science and Technology, Beijing traffic University, and China Petroleum etc.
We produce bearings and parts with inner diameter of 1.5mm to an outer diameter of 3000mm. Our products have been widely used in important industrial fields such as CNC machine tools, high-speed spindles, precision measurement instruments, oil drilling, petrochemicals,Cryogenic pump, FANUC/Siemens motors, mining metallurgy, port machinery, medical equipment, extruder gearbox, Cement roller press, vertical mill, rocker arm, textiles equipment, paper mill,robotics, harmonic drive, concrete mixer trucks, steel mills, rolling mills,Wind Power,Continuous casting mill, UAV, Air Compressor,Tension levelers,LIDAR systems,missile tracking camera ,aerospace, etc.
Our company have very good products quality guarantee equipment, key equipment and instrumentation are imported or design special equipment for special procedure by us. Main instrumentation is Japan ACCRETECH, TAYLOR,ZEISS Germany etc. Established precision bearing product testing laboratory, we can test bearing performance and life,Passed ISO9001 quality system certification, with an annual production capacity of 1 million sets of various precision bearings.
MONTON owns CNC lathes, machining centers, CNC grinding machines, and ultra precision equipment more than 160 sets. 10 CNC lathes, 65 CNC precision grinding machines, and 1set 4-axis machining center. 2 sets Ultrasonic cleaning line and equipment,2 sets tempering and stabilizing furnaces,1set heat treatment furnace，1sets low temperature stabilization equipment and vacuum equipment,8 production lines of automatic assembly.Inspection equipment include Mitotoyo Japan Contour,roundness measuring instrument,hardness tester,coordinate measuring instrument, length measuring instrument,vibration measuring instrument,contact angle goniometer,Bearing convexity value measuring instrument,hardness tester,Metallographic tissue measuring instrument,Clearance measuring instrument,height measuring instrument,Inner diameter outer diameter and rotation accuracy measuring instrument etc.
We have more than 140 employees, including 10 technical persons and 25 inspection persons. There are 5 persons with a master's degree, 25 persons with bachelor's degree, and 30 with vocational degree currently .
With advanced production equipment and perfect testing technology, MONTON can guarantee the quality and accuracy of the products we produced. Our technical department can efficiently complete the bearing design according to customer needs, and customers who need non-standard bearings can also enjoy customized services. Our quality system regularly monitors various production facilities and complies with strict quality requirements. All material certificates and certification reports are kept in files. Products are traceable and can be provided on request. Therefore, we are confident to provide the best solutions for global customers. Our company can design non-standard bearings and special application bearings for customer, as well as customized products with samples!
We are innovative, motivated and courageous to provide our customers with necessary solutions. Our management and employees are always ready to provide professional and personalized services to our customers. In the future, MONTON will adhere to the brand development strategy, strengthen the research and development of high-end products, strive to build a digital factory, and join hands with more partners to work together for a better future!
Company spirit: Honesty, Trustworthiness and Mutual benefit;
Company policy: Quality-oriented;
Company Business philosophy: Honesty,fulfill promise;
Company principle: Solve problems for customers and prioritize customer service at first.
We warmly welcome all friends come to visit us, study or business negotiation.
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