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Single row cross roller slewing bearing consists of two rings, compact structure, light weight, small clearance, so high precision is required.Roller adopts 1:1 cross arrangement, can bear axial force, tilt moment and relatively large radial force.It is widely used on lifting, transportation, construction machinery and military products.
Double row contact ball slewing bearing has three rings, balls and spacer blocks can be arranged in the upper and lower rings directly, Install two rows different diameters balls according to the stress conditions.This kind of open assembly is very convenient, for the upper and lower raceway arc Angle of 90°, can bear large axial force and tilting moment.When the radial force is greater than 0.1 times of the axial force, special raceway design is required.This types slewing bearings have large axial and radial dimensions and strong structure, so it is especially suitable for middle diameter tower crane, truck loading crane and other loading and unloading machinery.
ZZ Slewing Bearing provide the customer with the heavier loading rate for fixed turntable platform, you can consider the three rows slewing bearing while the normal types slewing bearing cannot reach your targets. It can provide the perfect solution for the proceeding of Radar, material handling equipment, shield machine, steel ladle, etc. Design Features The three-row roller slewing bearing has three rows of independent rollers, the direction of which is perpendicular to the direction of the load transmitting, the top and bottom rollers holding the axial load, and the middle roller loading the radial load. Supply: The three-row roller slewing ring depends on the customers’ requirement.
Note:
- Ball & Roller combined slewing bearing is applied for heavy axial loading, the eccentric rate(e) less than 1.2 and continuous rotating and long life.
- Refer to Table A if slewing bearing are stuck with double row sealing; Refer to Table B if slewing bearing are with labyrinth seal.
- If you need more information about the structure please contact with us.
- The gear torque is under atmosphere of Q&T
The double rows ball slewing ring consists of two parts slewing rings, which can withstand large axial loads, radial loads and titling moments, and has a higher safety factor. It is widely used in medium and large cranes, mining equipment, excavators and other mechanical equipment.
The single-row four point contact ball type slewing bearing is composed of two socket sleeves and is compact in structure and light in weight .Due to its steel balls contact with circular rollingtrack on four points,it can bear axialforce ,radial force and overturning moment at the same time,and it can be selected for use in engineering machinerysuch as rotary conveyer,welding operation machine,medium and small-scale hoists,and excavator.
