UIPI Slewing Bearing Presentation
50Pages

Slewing Bearing Solutions for the World Construction Industry Robotic Industry Mining Industry Medical Industry Universal Industrial Products, Inc. 900 East Hamilton Ave. Suite 100 Campbell , California 95008 USA Tel: 1-408-996-2958 Fax: 1-408-516-5892 Website: www.ui-pi.com Email: sales@ui-pi.com

Slewing Ring Catalog ©UIPI® -2007 Content Slewing Bearing Manufacture …………………………………………………………….………..2 Slewing Bearing Introduction …………………………………………………………….………..3 Single row ball slewing bearing……………………………………………………….…………4 Double row ball slewing bearing…………………………………………………………………4 Crossover roller slewing bearing……………………………………………………..…………4 Three row roller slewing bearing……………………………………………………..…………5 Slewing Bearing Application………………………………………………………………..………..6 Ring and rolling element………………………………………………………………….….………..7 Slewing ring Internal clearance ……………………………………………………..…….……… 7 Packaging and...

Slewing Ring Catalog ©UIPI® -2007 SLEWING BEARING MANUFACTURE Universal Industrial Products, Inc. (UIPI) is a slewing bearing manufacturer specializing in large diameter solutions. For over two decades, we have helped our local customers with bearing design and supply solutions that have allowed them to reduce costs and improve profitability. In order to maintain our competitive edge, UIPI started three Sino-US joint ventures in China from 2006. Two of them are located in Luoyang, the third one is located in Jiangyin. Which are one of the leading large-diameter slewing bearing manufacturers...

Slewing Ring Catalog ©UIPI® -2007 SLEWING BEARING INTRODCUTION Slewing ring bearings are large-size bearings, which can carry combined loads: axial, radial load and tilting moment. They are usually equipped with fixing bolt holes, internal or external gear, lubrication holes and sealing elements consequently, machinery structure can be made compact, guided rotary is convenient, mounting and maintenance are easy. Available slewing bearings are: bearings with internal gear, external gear, or non-gear, four-point contact ball bearings, double-row angular contact ball bearings, cross...

Slewing Ring Catalog ©UIPI® -2007 SINGLE-ROW BALL SLEWING BEARING Single-row ball slewing bearings are suited to axial, radial, and moment loads. The four-point contact is distributed between the balls and the two split raceways. The precision grinding and geometry of the ball and deep grove raceway allow for the application of increased thrust and moment capacity. Specification: Raceway Diameters: Standard models from 18" to 240"(480 mm to 6,000mm) Capacity: Thrust Loading : From 700 KN to 34,100 KN (7,670,000 Pounds) Gearing: Non-gear, External Gear, Internal Gear DOUBLE-ROW BALL SLEWING...

Slewing Ring Catalog ©UIPI® -2007 THREE-ROW ROLLER SLEWING BEARING These designs provide for the highest load rating of all designs. The three-row roller configurations allow for the two rollers in the vertical axis to take both axial and moment loads from the two adjacent raceways, while the third roller facilitates the radial load. Typical applications for these designs are in Construction, Opencast Mining and Marine applications. Specification: Raceway Diameters: Standard models from 18" to 196"(480 mm to 5000mm) Capacity: Thrust Loading : From 15,000 KN to 105,060 KN (23,630,000 Pounds)...

Slewing Ring Catalog ©UIPI® -2007 APPLICATION EXAMPLES: Harbor and Shipyard Cranes Mechanical Engineering Offshore Technology Tower Cranes Solar Energy Plants Railway Cranes Ship Deck Cranes Mobile Cranes Wind Turbine 900E. Hamilton Ave. Ste. 100 Campbell, CA 95008 www.ui-pi.com

Slewing Ring Catalog ©UIPI® -2007 RINGS AND ROLLING ELEMENT Generally slewing bearing rings and their rolling elements are manufactured from through-hardening alloys (GCr15 or GCr15SiMn). These are equivalent to the AISI-SAE 52100 or E52100 family of alloys. UIPI can provide additional material specifications, dependent on their customers’ requests. Additional materials that can be used are 50Mn (equivalent to AISI C1050 OR SAE 1052), alloy steel (AISI4140 /GB42CrMo /DIN42CrMo4 /BS708A42) , carbon steel (AISI1045 /GB45 /DINCK45 /BS060A42), and 5CrMnMo (equivalent to AISI-SAE V1G). SLEWING...

Slewing Ring Catalog ©UIPI® -2007 Table 5 Crossed Cylindrical Roller Slewing Bearings μm Tolerance Classes Axial Clearance Table 6 Three-row Cylindrical Roller Combination Slewing Bearings μm Tolerance Classes PACKING AND STORAGE All UIPI slewing bearings leave their factory with rust inhibitor lubricant coatings on both the inner and outer surfaces. are generally Kraft paper wrapped, with larger bearings having an additional Poly-wrap seal. Individual wooden packaging is for larger bearings; these packaging systems allow for easier transportation, handling and storage. Bearings should be...