Our products all are with highly quality monitoring,competitive prie and high product efficiency.Widely used in many industries.  1.Pivoting support bearing Quality Controlled by USA, Competition Price in China. 2.ISO 9001 certified manufacturer.  Type:Non-gear, External Gear, Internal Gear Hardness:Tempering and quenching the forgings to 229-269HB, Case harden rarden raceway to 55-60HRC, Case depth more than 3.  Technical Support:GRT has an experienced engineering team, which can be sent to factories and work with you directly. It can also provide on-site services to understand, analyze, and design your products. Any post-production problems can be addressed properly. On-site service, Worry Free is UIPI’s principle. Application:Tunneling equipment, harbor and shipyard cranes, construction equipment, mobile cranes, offshore technology, tower cranes, turning machines, solar energy plants, ship deck cranes, railway cranes, man lifts, wind turbines, and more.slewing Bearing: 1) High quality and good service 2) Durable 3) ISO9001 certificate 4) OEM service is availableSpecifications

Excvavtor Slewing bearing

Double-row different diameter ball slewing bearing has three seats. The steel balls and the spacers may be directly arranged into the upper and lower raceways. Two rows of steel balls with different diameters are fitted according to the load. Such open mode fitting features extraordinary convenience. The load angles of both upper and lower races are 90°, which enable the bearing to bear large axial force and the overturning moment. When the radial force is larger than 1/10 of the axial force, the raceways should be especially designed. The axial dimension and radial dimension of double-row ball slewing bearing are rather large, and the bearing construction is sturdy. Hence it is especially suitable for tower cranes which requiring working diameter over medium range, mobile cranes and other unloading machines.

slewing bearing can carry large load. Packaging Before delivery, every slewing beairng is filled in rust-preventive lubricant on the inside surface, outerside surface and races, and then packed with plastic film, kraft paper and blue belt;3 Types:

Single-row roller slewing bearing

Single-row crossed roller slewing bearing

Double-row ball slewing bearing

Double-row four point slewing bearing

Three-row roller slewing bearing

4 Specification: As customer's requirement

5 Application: widely used in industries such as metallurgy,vessel oil,chemistry,mine coat,hydroelectric power,port machinery,heavy machinery and so on.

6 Quality: ISO9001 certificate

7 OEM service is available

large size slewing ball bearings