131.20.905 Three Row roller slewing bearing With external gear for Drill Rigs

A drilling rig is a complex machine, which consists of machines, units and mechanisms. Drilling rig is a mechanical device that drives the drilling tool to drill underground and obtains physical geological data in the exploration or development of mineral resources (including solid ore, liquid ore, gas ore, etc.). Also called a drilling rig. The main function is to drive the drilling tool to break the rock at the bottom of the hole, and run or lift the drilling tool in the hole. It can be used to drill cores, ore cores, cuttings, gaseous samples, liquid samples, etc., to prove underground geology and mineral resources. The slewing bearing used by the drilling rig is a single-row ball slewing bearing or a three-row ball slewing bearing. The main function of the slewing bearing is to install and fix the drill pipe and rotate it, and bear a certain axial force and impact force.

Construction machinery is the initial application field of slewing bearings and is also widely used, such as earthmoving machinery, excavators, dismantling machines, stackers and reclaimers, graders, road rollers, dynamic compaction machines, rock drilling machinery, roadheaders, etc.
the-catalogue-for-the-three-row-roller-slewing-bearing-with-External-gear
products discription
Model Number:131.20.905Brand namelongwei
Production ExperienceSince 2004Applicable Industries:Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory
Rolling-Element NumberThree -Row roller Gear Options:with External gear
Material50Mn/42CrMo/ CustomizedSeals Type:NBR or As requirement
Bearing Type:Three Row RollerCERTIFICATE:ISO9001:2008/SGS
Bore Diameter742 mmOutside Diameter1040mm
Roller TypeDeep Groove RacewayRACEWAY hardness:55HRC -62HRC
Products NameThree Row Roller Type Slewing Bearing Precision Internal Gear Service:OEM Service.Design Service
Net Weight :560kgsMaterial of Rolling element:GCR15
Warranty Period1 yearTestingIn house or third party
OriginCHINASizeStandard OR Customized
Height178MMH.S. Code848210900
Transport Package1. Industrial Neutral Packing 2. Package as your requirements.3. Small size Bearings:Plastic vacuum packaging bag+Paper Box/Neutral Carton 4.Large size Bearings:Plastic film+pergamyn paper+Roll tape+Wooden BoxMOQ1 SET

Selecting the slewing bearing with appropriate structure and material can effectively increase the axial bearing capacity and impact resistance, so that the equipment is safer and has a longer service life.

Application principle of slewing bearing

The main function of the slewing bearing under the cab is to fix the cab and drive the cab to rotate. The motor or reducer drives the gear to rotate, the gear drives the gear connected to the slewing bearing to rotate, and drives the slewing bearing to rotate, or the gear on the motor shaft directly drives the slewing bearing to rotate, thereby driving the drill pipe installed on the slewing bearing to rotate.

Three-row-ball-slewing-bearing-for-CANYON-EQUIPMENT-MR-A500-Excavator-Drill
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slewing bearing transmission test
010.20.356-Single-row-ball-slewing-bearing-for-XCMG-ROTARY-DRILLING-RIGS
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mainproducts-Pic-Slew-ring_

Why choose Longwei transmission slewing bearings
A pioneer in slewing bearing field, rich experience, can do design, produce, mounting guide
Small order accepted
ISO certified company
Variorum models
7*24hours hotline to help you with your cranes
Strict quality control system to ensure quality for slewing bearing

Longwei transimission Slewing Bearing Types
Longwei transmission slewing bearings can be divided into the following types as per their structures:
single row four point contact ball slewing bearing,
single row cross roller slewing bearing,
double row different ball diameter slewing bearing,
three row cylindrical roller slewing bearing and roller/ball combination slewing bearing.
And all these types of slewing bearings can be further divided into bearings without gears, bearings with external gears and bearings with internal gears.

Detailed description of these types slewing bearings

Single row four point contact ball slewing bearings
This kind of slewing bearings can support high dynamic loads, transmitting axial and radial forces simultaneously as well as the resulting tilting moments. Applications of this kind of bearings are hoisting, mechanical handling and general mechanical engineering etc.
Single row cross roller slewing bearings
This kind of bearings can support combinations of large radial force, medium axial force and tilting moment with small or zero clearance. Main applications of this kind of bearings are hoisting and mechanical handling and general mechanical engineering etc.
Double row different ball diameter slewing bearings
This kind of bearings can support high static loads with simple structures. They are mainly used in situations with variation load position and direction and continuously rotating. Main applications of this kind of bearings are deck hoisting, mining and material handling etc.
Triple row cylindrical roller slewing bearings
This kind of bearings has high load carrying capacity. Under same loads, this kind of bearings has much smaller diameters which can make the installation much compact, as different kinds of loads are supported by different races and rollers. Main applications of this kind of bearings are hoisting, mechanical handling, mining and materials handling, offshore technology and general mechanical engineering etc.
Roller/ball combination slewing bearings
This kind of bearings can support high axial load and low tilting moments. Usually they are large diameter slewing bearings. Applications of this kind of bearings are mining and materials handling etc.

Longwei Transmission Slewing Bearing Packing
Bearing surface is covered with the anti-rust oil first; and then wrapped with the plastic film;
And then packed with kraft paper and professional belts;
At last, with wooden box totally at the outer packing to invoid the rust or the moist;
We can depend on the customers demand to be packed;

About Longwei

Provide you with customized industry solutions

longwei factory

More than ten years of production experience, strict quality control can be the guarantee of the best solution in the industry.
China’s leading supplier of slewing bearings, its products have passed ISO 9001 and CAPE certification, and has a number of product patents.

The flexibility of our dialogue and approach with our clients is combined with responsive design and development innovation to ensure exceptional delivery.

FAQ

Do you have any questions about our slewing bearing? Maybe you can find the answer below. If the answer below does not solve your problem, please contact us and our engineer will answer it for you.

1. Where is your slewing bearing manufactured?
Our slewing bearings are all manufactured in China. We not only have the ability to design and produce slewing bearings but the quality can also be guaranteed. At the same time, our slewing-bearing price is more favorable.

2. I don’t know which slewing bearing to use, can you choose for me?
Yes, of course, Each model has a parameter list on the website. You can choose the suitable slewing bearing according to these parameter lists. If you don’t know how to choose, you can get in touch with us and our engineers will work with you to choose the suitable product. We can also design a new slewing bearing solution for you according to your equipment.

3. Can I get your product catalog?
You can get our product catalog in the download or contact us, we will send the product catalog to you by email or other ways.

4. Can you customize products?
Yes, we can. Our engineers have very rich experience in slewing bearing design. On the customized slewing bearing page, you can see some special customized products designed by our engineers. These design solutions meet the special needs of many customers. Our engineers can also work with you to design a new slewing bearing.

5. Can you provide accessories?
Yes, we can provide matching spare parts such as motors, hydraulic motors, and encoders that are compatible with slewing bearings.

6. Can you provide a 3D model?
Yes. All our slewing bearings have 3D models, you can contact us to get them. At the same time, we can also provide CAD files and PDF files.

7. How long is your slewing bearing warranty period?
Our slewing bearing warranty time is 12 months. When you install, use, and store the slewing bearing, please refer to the slewing bearing instruction manual.

8. Can you choose the color of your slewing bearing?
Yes. Our slewing bearing is available in many colors. If you have special requirements, please tell our sales engineers, we are happy to provide services for you.

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