High precision Cross Roller Ring --CRU Series

FRB Bearings CRU Cross Roller Ring's unique configuration results in an overall costs savings of  up to 50%. Featuring mounting holes on both rings, the Type CRU requires reduced parts and labor.

The simple design of the Type CRU consists of one-piece outer and inner ring construction, and  requires no precise housing preparation or special fixturing. The FRB Bearings engineered design  allows for easy installation with either inside or outside ring. The Type CRU's extremely rigid  construction ensures highly accurate and ultra-smooth motion.

Here are some recommended product models:
RU 42,
RU 66,
RU 85,
RU 124,
RU 124G,
RU 124X,
RU 148,
RU 148G,
RU 148X,
RU 178,
RU 178G,
RU 178X,
RU 228,
RU 228G,

Production and supply 1-HJB264 crossed cylindrical roller rotor bearing (no tooth type)

China factory produces and supplies 1-HJB264 cross cylindrical roller slewing bearings (no teeth), weight:6.9 kg.Products through grinding process, flexible rotation, small noise, long service life, manufacturers straight supply, price concessions!For detailed technical parameters, please contact us:sales@frb-bearings.com

Here are some recommended product models:
1-HJB77
1-HJB94
1-HJB111
1-HJB120
1-HJB149
1-HJB179
1-HJB222
1-HJB233
1-HJB260
1-HJB264
1-HJB500
(110.25.500)
1-HJB515
1-HJB544
1-HJB560
(110.25.560)

High quality slewing ring bearing HJN2800 cross roller swing bearing

HJN2800 cross roller swing bearing, with inner teeth, dimensions: 2625*2978*112mm,weight:1250 kg, FRB Bearings specializes in the production and supply inner diameter of 100mm to 5000mm with outer tooth ,inner tooth and no tooth type cross roller slewing ring.This kind of bearing roller is 1:1 cross arrangement, can withstand both axial force overturning moment and larger radial force.Widely used in bucket turbine, overweight transport machinery, port machinery, mining machinery, construction machinery.

Here are some recommended product models:
HJN800
HJN800M
HJN817
HJN900
HJN900M
HJN1000
HJN1000M
HJN1094S
HJN1120
HJN2000M
HJN2240

How to select crane slewing bearing type ?

Slewing ring bearings is a bearing that can bear a lot of weight, often used in different industries.And there are many types of swing bearing, different types have different use case.But generally speaking, slewing ring are more used in construction machinery, so what type of slewing bearings should be used by cranes?

FRB BEARINGS technology personnel according to their years of related experience, according to crane is a large machinery, so choosing the slewing bearing must have a lot of tolerance, and compact structure.Therefore, the crane slewing bearing can choose three rows of roller type turntable bearing, single-row four-point contact ball type slewing ring, which can increase the overall contact area and withstand various loads at the same time. The diameter of this type slewing ring bearing is also large, which is specially used for heavy machinery equipment.

What's the failure analysis and renovation of slewing ring bearings?

Slewing bearings are special types of bearings usually used in heavy machinery.The difference between these types of bearings and ordinary bearings is that  they have high pitch value diameters, the way they are mounted on a structure, generally "static" working properties, high load capacity and a large number  of rolling elements.

The slewing bearing is usually selected according to the static load which is calculated by the axial and radial force and the tilting moment.Some  parameters, such as speed, load and working temperature, are needed to properly select the rotating bearing.There are some assumptions to consider:
1) The bearing is made of high-quality materials without manufacturing defects.
2) Select bearing according to load calculation.
3) The bearing mounting is suitable.
4) The grease quality is good and it can reach every corner of the bearing.
5) The bearing is sealed with high-quality seals.
6) The bearing working temperatureis within the range.
7) Ensure proper maintenance.

HJW500 slewing ring bearing (HJ series) supplied by China factory

HJ series high quality slewing bearing is supplied by China factory. This bearing is an external  toothed cross roller swing bearing,external dimension:384*616*106mm,weight:130 kg.

China factory direct supply, quality assurance, price concessions, welcome friends to inquire and  order.

Slewing ring bearing application:
1. Trailer: This type of bearing is used in a variety of applications, the most important of  which are in the transportation industry, agricultural trailer, irrigation system and airport  luggage rack.Applications on vehicles, transfer bearing axial load, radial load and torque.In  other applications, they mostly transmit axial loads.FRB Bearings professional manufacture  trailer used slewing ring.

2. Wind power: The bearing of wind turbine usually includes yaw bearing, variable propeller  bearing, and transmission system bearing (spindle and gearbox bearing).FRB Bearings for customers  are yaw bearings and variable propeller bearings.The yaw bearing is installed at the connection  part between the tower and the cockpit, and the rotor bearing is installed at the root of each  blade to connect with the hub.Each wind generator USES one set of yaw bearings and three sets of  rotor bearings.

How to maintain the tower crane slewing ring? Here are 9 points for reference

How to maintain the tower crane slewing ring? Here are 9 points for reference

(1) Tower crane maintenance technology slewing bearing installation support must be rigid and the mounting surface should be smooth.Before assembling the slewing bearing, the bearing should be de-stressed, and the maintenance of the tower crane can reduce the deformation of the slewing bearing.The contact surface of slewing ring must be cleaned during assembly.

(2) The changes of noise and rotary resistance moment should be paid attention to during the use of tower crane maintenance technology, tower crane maintenance if there is abnormal phenomenon should be removed and checked.

(3) The lifting and maintenance technique of tower crane rotating support must be lifted horizontally or stored, no vertical lifting or storage,to avoid deformation.

How to prevent breakage of slewing bearing teeth?

slewing bearing broken teeth are a serious phenomenon, which will directly affect the normal use of rotary table bearing, and even ruin of rotary table bearing. Therefore, in order to avoid the occurrence of rotary table bearing broken teeth, it is very important to do preventive work in advance.In order to prevent the bearing of the slewing ring from breaking teeth, the reasons for slewing bearing should be clarified first.

The slewing bearing broken teeth are not allowed to be caused by the following reasons:

1. Installation reasons:
1) Improper side clearance adjustment of gear during installation, which fails to meet the requirements, resulting in poor meshing of two gears during operation, resulting in broken teeth. In this case, it should be strictly required to adjust side clearance.

What are the application of slewing bearing in stacking robot?

A robotic stacker or stacker is a machine that provides automatic devices for stacking boxes of goods or products onto pallets.Stacking robot refers to loading or unloading robot parts, boxes or other items onto or from trays.

Arrive at stacking between manufacturing and distribution.Many factories still do this manually, risking injuries and claims.Others have installed cumbersome palletizing machines, only to struggle with heavy conveyors and lack of flexibility.The alternative is stacking the robot.Manufacturing companies in fields such as chemistry, food and health care are recognizing the advantages of the technology.Boxes, drums, bags, or trays can be palletized quickly, accurately, and repeatably, and include cross layers as needed.A robot with a payload of up to 2,866 pounds can be stacked in any desired format.Uniform ventilation clearance can be guaranteed while controlled acceleration and deceleration means no damage from falls or impact cases.

The OEM palletizing robot supports 111.25.630 with a single row cross roller slewing bearing