Item Description

You should see specifics for  slewing ring bearing
230.21.0675.013 (Type 21/520.)
if you need to have much more details, please truly feel totally free to contact us for designing and making

1. Introduction of CZPT slewing bearings
LYHY is a specialist producer in slewing ring bearings because 1993. We can also style and make other regular and non-regular ball bearings, roller bearings and precision bearings as for each customer’s various complex demands.
Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing.
Slewing ring bearing is a bearing that CZPT to bear axial load, radial load and overturning torque. Underneath CZPT situations, slewing rings have their personal mounting holes, CZPT holes and seal holes, to satisfy the various demands of the different host working under the various circumstances
On the other hand, slewing bearing itself has characteristics of compact composition, CZPT CZPT convenient, simple to set up and maintaining simply.
LYHY slewing ring bearings are generally used for reduced revolution while shaking and strained with an tremendous axial pressure, instant and in some components with radial drive at the same time.
For that reason the requirements for loading are stricter than common bearings. If the choice of the slewing ring bearing has been wrong it will trigger a fantastic harm. Hence it is required to appraise the specific forces acting on the slewing ring bearing and to select the ideal slewing ring bearings.

two. Construction
two.1 Slewing ring bearings have diverse sorts as for every diverse constructions:
Single row ball slewing bearings
Double row ball slewing bearings
Crossed roller slewing bearings
Triple row roller slewing bearings
Flange slewing bearings
2.2 The previously mentioned slewing ring bearings can also be divided into 3 distinct sorts as for each different transmissions:
Slewing ring bearings with no equipment
Slewing ring bearings with exterior equipment
Slewing ring bearings with interior gear

Thorough description of these sorts slewing bearings

One row 4 level get in touch with ball slewing bearings
     This type of slewing bearings can assist high dynamic hundreds, transmitting axial and radial forces concurrently as well as the ensuing tilting times. Programs of this type of bearings are hoisting, mechanical managing and standard mechanical engineering and so forth.
One row CZPT roller slewing bearings
     This type of bearings can support combos of massive radial pressure, medium axial drive and tilting moment with modest or zero clearance. Main programs of this sort of bearings are hoisting and mechanical managing and general mechanical engineering and so forth.
Double row different ball diameter slewing bearings
     This type of bearings can assist substantial static loads with basic constructions. They are mostly employed in conditions with variation load placement and route and continuously rotating. Main applications of this variety of bearings are deck hoisting, mining and content dealing with etc.
Triple row cylindrical roller slewing bearings
     This variety of bearings has high load carrying capacity. Below identical loads, this type of bearings has much smaller sized diameters which can make the installation considerably compact, as various types of hundreds are supported by diverse races and rollers. Major purposes of this variety of bearings are hoisting, mechanical managing, mining and materials handling, offshore technology and basic mechanical engineering and many others.
Roller/ball combination slewing bearings
     This variety of bearings can help large axial load and reduced tilting moments. Usually they are large diameter slewing bearings. Purposes of this type of bearings are mining and materials handling and so on.

3. Functions:
Slewing ring bearings have far more functions: Compact framework, dependable information, easy set up, and effortlessly servicing

4. Application:
Slewing ring bearings can be broadly employed in lifting & transport equipment, mining equipment, design machinery, port hoisting equipment, port oil transfer equipment, onshore and offshore crane, excavator, concrete equipment, paper device, plastic and rubber equipment, weave machine, steel plant, digital electrical power plant, wind electrical power generator, other development and business machines or equipments and other big rotary system.

five. Slewing Ring Bearings——Technical Data:
Content: 42CrMo, 50Mn, or other substance buyers call for.
Precision: P0. P6. P5.
Exterior diameter: 200~9500mm
Cage/retainer: Nylon, aluminum, steel, brass or other individuals consumers demand
Equipment kind: non-geared, inside equipment and exterior equipment, equipment hardened

All CZPT slewing ring bearings are cast rings with substance metal 50Mn or 42CrMo, slewing rings are machined by CNC lathe, slew bearings raceway are quenched through medium-frequency hardening with hardness fifty five-60HRC, turntable bearings are drilled holes by CNC drilling device, slew gears are machined by hobbing device with gear quenched if necessary, swing bearings then are grinded by grinding device with larger precision.

6. CZPT Slewing Bearing Packing 
Stage 1: Coated with the anti-rust oil
Stage 2: wrapped with the plastic movie
Action 3: Packed with Kraft paper and skilled belts
Step 4: Put into wooden box to steer clear of the rust or the moist
Remark: Typically, plastic movie+ Kraft +belt+ wooden box, but tailored packing available,

All CZPT slewing ring bearings can be typically shipped well timed, normal manufacturing time is fifteen-fifty days primarily based on diverse slew bearings diameters, occasionally slew rings will be in stock.
Slewing bearings can be supplied distinct delivery terms, this sort of as EXW, FOB, CIF, DDU and so on.
Also, slewing rings can be transported by different transportation ways, by express (this kind of as DHL, TNT, UPS, FEDEX and so on), by air, by sea, by truck, by railway and so on.

Flanged slewing bearing with exterior gear:
231.twenty.0400.013 (Variety 21/520.1)
231.20.0500.013 (Sort 21/650.1)
231.twenty.0600.013 (Variety 21/750.1)
231.20.0700.013 (Type 21/850.1)
231.twenty.0800.013 (Variety 21/950.1)
231.twenty.0900.013 (Type 21/1050.1) thousand.013 (Type 21/1200.1)

231.20.0400.503 (Type 21/520.1)
231.twenty.0500.503 (Type 21/650.1)
231.20.0600.503 (Variety 21/750.1)
231.twenty.0700.503 (Kind 21/850.1)
231.twenty.0800.503 (Type 21/950.1)
231.20.0900.503 (Sort 21/1050.1) thousand.503 (Sort 21/1200.1)

231.21.571.013 (Sort 21/520.1)
231.21.571.013 (Type 21/650.1)
231.21.0675.013 (Kind 21/750.1)
231.21.571.013 (Kind 21/850.1)
231.21. 0571 .013 (Type 21/950.1)
231.21. 0571 .013 (Type 21/1050.1)
231.21.1075.013 (Kind 21/1200.1)

281.thirty.0900.013 (Sort a hundred and ten/1100.1)
281.30.1000.013 (Variety a hundred and ten/1200.1)
281.30.1100.013 (Variety 110/1300.1)
281.thirty.1200.013 (Type 110/1400.1)
281.30.1300.013 (Variety one hundred ten/1500.1)
281.30.1400.013 (Variety 110/1600.1)

281.thirty. 0571 .013 (Kind a hundred and ten/1100.1)
281.30.1075.013 (Variety a hundred and ten/1200.1)
281.30.1175.013 (Sort one hundred ten/1300.1)
281.30.1275.013 (Variety 110/1400.1)
281.30.1375.013 (Type 110/1500.1)
281.30.1475.013 (Kind one hundred ten/1600.1)

Flanged slewing bearing: Bearing ungeared:
230.20.0400.013 (Type 21/520.)
230.twenty.0500.013 (Type 21/650.)
230.20.0600.013 (Kind 21/750.)
230.twenty.0700.013 (Type 21/850.)
230.20.0800.013 (Kind 21/950.)
230.twenty.0900.013 (Kind 21/1050.) thousand.013 (Kind 21/1200.)

230.twenty.0400.503 (Kind 21/520.)
230.20.0500.503 (Variety 21/650.)
230.20.0600.503 (Variety 21/750.)
230.20.0700.503 (Kind 21/850.)
230.20.0800.503 (Type 21/950.)
230.twenty.0900.503 (Sort 21/1050.) thousand.503 (Variety 21/1200.)

230.21.571.013 (Variety 21/520.)
230.21.571.013 (Kind 21/650.)
230.21.0675.013 (Variety 21/750.)
230.21.571.013 (Kind 21/850.)
230.21. 0571 .013 (Variety 21/950.)
230.21. 0571 .013 (Kind 21/1050.)
230.21.1075.013 (Type 21/1200.)

280.30.0900.013 (Kind one hundred ten/1100.)
280.thirty.a thousand.013 (Sort a hundred and ten/1200.)
280.thirty.1100.013 (Kind one hundred ten/1300.)
280.30.1200.013 (Sort 110/1400.)
280.30.1300.013 (Sort one hundred ten/1500.)
280.thirty.1400.013 (Variety a hundred and ten/1600.)

280.30. 0571 .013 (Type a hundred and ten/1100.)
280.thirty.1075.013 (Type one hundred ten/1200.)
280.30.1175.013 (Sort one hundred ten/1300.)
280.30.1275.013 (Type a hundred and ten/1400.)
280.30.1375.013 (Variety one hundred ten/1500.)
280.thirty.1475.013 (Variety 110/1600.)

Flanged slewing bearing with exterior equipment:
232.twenty.0400.013 (Kind 21/520.2)
232.20.0500.013 (Variety 21/650.2)
232.twenty.0600.013 (Variety 21/750.2)
232.twenty.0700.013 (Type 21/850.2)
232.twenty.0800.013 (Variety 21/950.2)
232.20.0900.013 (Sort 21/1050.2)
232.20.a thousand.013 (Kind 21/1200.2)

232.twenty.0400.503 (Sort 21/520.2)
232.twenty.0500.503 (Type 21/650.2)
232.twenty.0600.503 (Variety 21/750.2)
232.20.0700.503 (Sort 21/850.2)
232.twenty.0800.503 (Type 21/950.2)
232.20.0900.503 (Variety 21/1050.2)
232.20.a thousand.503 (Variety 21/1200.2)

232.21.571.013 (Kind 21/520.2)
232.21.571.013 (Type 21/650.2)
232.21.0675.013 (Kind 21/750.2)
232.21.571.013 (Sort 21/850.2)
232.21. 0571 .013 (Variety 21/950.2)
232.21. 0571 .013 (Type 21/1050.2)
232.21.1075.013 (Type 21/1200.2)

282.thirty.0900.013 (Type one hundred ten/1100.2)
282.30.1000.013 (Variety one hundred ten/1200.2)
282.thirty.1100.013 (Variety a hundred and ten/1300.2)
282.30.1200.013 (Sort one hundred ten/1400.2)
282.thirty.1300.013 (Sort a hundred and ten/1500.2)
282.30.1400.013 (Variety a hundred and ten/1600.2)

282.30. 0571 .013 (Type 110/1100.2)
282.30.1075.013 (Sort a hundred and ten/1200.2)
282.thirty.1175.013 (Kind one hundred ten/1300.2)
282.30.1275.013 (Sort one hundred ten/1400.2)
282.thirty.1375.013 (Sort 110/1500.2)
282.30.1475.013 (Kind a hundred and ten/1600.2)


Sorts of Ball Bearings

There are a lot of types of Ball Bearings available on the marketplace, but which one particular is greatest for your software? Below, we will go over the distinctions among Angular speak to, Solitary-row, Substantial-carbon steel, and Ceramic ball bearings. These kinds of bearings also characteristic races, or a groove in the centre of each. These races are essential in maintaining the balls contained within the cylinder. They also offer a groove-baed pathway.


The ceramic ball used in ball bearings has several advantages. It is light-weight, operates at decrease temperatures, has reduced skidding, and is resistant to electrolysis. The ball also reveals longer exhaustion existence. All of these aspects make the ceramic ball a great selection for a lot of programs. But, how do you know if a ceramic ball bearing is appropriate for your software? Read through on to discover why ceramic ball bearings are a much better option than steel or stainless metal kinds.
The ceramic balls are forty% a lot more dense than metal. This implies much less centrifugal force is generated on the bearing, which suppresses warmth technology. Because of this diminished friction, ceramic bearings are a lot more efficient at transferring strength. In comparison to metal bearings, ceramic balls have for a longer time life spans. However, these ceramic balls are not as sturdy as metal. Consequently, it is crucial to realize the limitations of the ceramic ball bearing prior to purchasing one.
The ceramic materials utilized for ball bearings are resistant to micro-welding. Metals bear this approach when imperfections in the surfaces interact. Sooner or later, this results in a brittle ball that decreases the existence of a bearing. In contrast to metals, ceramic materials have a steady actions at higher temperatures and show less thermal expansion. This implies that they can be employed for programs in which lubrication just isn’t an selection.
Whilst metal balls can very easily absorb contaminants and international particles, the ceramic ball is insensitive to this, and doesn’t call for lubrication. This means they’re not prone to corrosion and other frequent difficulties. These are just a few motives why ceramics are a much better option. This technologies has a wide selection of makes use of. It’s easy to see why it is so popular. If you might be searching for a new bearing for your software, be positive to make contact with an AST Purposes Engineer. They can analyze your operating circumstances and possible failure modes.

Angular get in touch with

An Angular Speak to Ball Bearing (also recognized as an angular-make contact with bearing) has an axial part that is generated when radial masses are used. They are typically employed in pairs, triplex sets, or quadruplex sets. These bearings are also offered with Super Concluded Raceways to reduce sounds and enhance lubricant distribution. Angular contact ball bearings have different layout models, these kinds of as bore size, outer diameter, and outer ring width.
A single-row angular make contact with bearing has a radial get in touch with angle that is equal to the angular length amongst the two rings. Double-row angular bearings are developed for two-way thrust capability. These sorts of bearings can be obtained at Grainger and other online stores. A normal angular get in touch with bearing will previous up to a million revolutions. They are usually utilised in industrial angular contact bearings.
One-row angular speak to ball bearings attribute a set get in touch with angle. These bearings can assistance radial and axial hundreds, but they are unable to withstand large speeds. Solitary-row angular get in touch with ball bearings might also have one or two shoulders relieved. Thrust load is a force placed on the bearing when it is set up in an assembly, and it is utilised to develop an angle among the races.
Angular make contact with ball bearings appear in one and double-row configurations. They differ in the axial load they can have and the type of lubrication they use. Angular make contact with ball bearings are excellent for substantial-pace purposes and can accommodate equally radial and axial masses. The kind of contact and lubrication employed in angular-make contact with ball bearings relies upon on the meant use for the bearing.

Higher-carbon steel

Carbon metal is a low-alloy and high-carbon steel employed in bearings. This material gives excellent energy and tiredness properties for ball and roller bearings. Its mechanical houses are perfect for applications exactly where the temperature is much less than 400 degrees Fahrenheit. High-carbon metal is also employed to make bearing factors for chrome metal bearings. These kinds of steels are softer than chrome steel but provide excellent durability in purposes where the substance is exposed to severe problems.
Hardened carbon metal balls with an AISI 1015 hardness index are utilised in a assortment of automotive, commercial, and semi-precision purposes. In addition to automotive apps, they are also employed in slides, trolleys, and conveyors. AISI 1015 carbon metal balls are used in bearings. They can be acquired in a range of weights and diameters. Carbon metal balls can also be purchased in nickel-plated or uncoated types for attractive needs.
In get to establish whether a ball bearing is produced of substantial-carbon steel, the content have to be tested for its hardness. An normal pocket magnet will work properly, but an regular rare earth magnet just isn’t potent ample to measure the hardness. If it draws in the magnet strongly, the metal is steel, although a weak magnet indicates a non-ferrous material. A hardness take a look at requires a specific microhardness take a look at.
A reduce-carbon steel is an additional choice. Some miniature bearing manufacturers use a substance with significantly less carbon than AISI 440C. This materials is also recognized as KS440 or X65Cr13. Right after getting warmth-handled, it develops scaled-down carbides, ensuing in outstanding lower-noise qualities and the same corrosion-resistance as 440C. These supplies are a considerably less high-priced different than chrome metal, but they are typically less tough than chrome alloy steel.


Solitary-row angular speak to ball bearings accommodate axial hundreds in one path. These are normally modified in opposition to a second bearing. Not like other ball bearings, they are non-separable and have an higher and decrease shoulder. One-row ball bearings are produced of Chromium Steel (GCr15) which is heat-taken care of to achieve substantial uniform hardness and excellent dress in resistance. They are the most commonly utilized type of bearings in the globe.
Since of the angular get in touch with amongst the radial plane and the raceway, single-row ball bearings transmit radial forces from raceway to raceway. A larger a, the better the axial load carrying capacity of the bearing. Solitary-row angular contact ball bearings are ideal for substantial axial hundreds. Nevertheless, they have constrained preload abilities and must be set up in pairs. Hence, they are best utilised for applications in which axial forces have to be distributed.
One-row ball bearings can be pre-lubricated and have metal shields. They are also obtainable with rubber seals or snap rings on the outside the house edge. They are accessible with a variety of retainers, which includes pressed metal cages, plastic shields, and rubber seals. A tapered bore is also available on request. They are perfect for purposes where space is constrained. The 6200 sequence of bearings are specially nicely suited for electrical motors, dental hand equipment, and optical encoders.
Single-row angular contact ball bearings are commonly utilized for axial hundreds. The outer and inner rings have slightly larger radii than the balls. These bearings can accommodate higher speeds and minimal torque. They can also be supplied with diverse grease stages. If grease is needed, you can select a lubricant that has diverse qualities relying on the application. They are straightforward to install and sustain. Nevertheless, they are not advisable for adjacent mounting.


A plastic ball bearing is a hugely functional component that can be mounted in a selection of elements, including wheels, pulleys and housings. The outer ring of a plastic bearing is generally the pulley profile. The inner ring can be created of a shaft or polymer. The integrated design and style of a plastic ball bearing aids to decrease assembly time and price. Here are some of the benefits of this kind of bearing:
Very first and foremost, plastic balls are lighter than metallic balls. They also have considerably less magnetic properties than metal balls, generating them the best selection for apps demanding minimal weight and noise. Glass balls are also lighter than stainless steel balls, producing them the ideal metallic-cost-free selection. They are also quite corrosion-resistant, which can make them a fantastic decision for some apps. In addition to currently being lightweight, polymer ball bearings are also quiet. And because of their low excess weight, plastic ball bearings are perfect for purposes that call for quick speed.
Yet another benefit of plastic bearings is their ability to withstand high temperatures. This material is also abrasion and corrosion-resistant. It satisfies Food and drug administration and USDA acceptance requirements. Apart from its abrasion-resistant and corrosion-resistant homes, these plastics do not transfer warmth. Apart from being very durable and flexible, most plastics are also self-lubricating. Widespread plastics contain phenolics, acetals, nylon, and ultra large molecular bodyweight polyethylene. Nevertheless, plastics have constraints, and these supplies could be damaged by excessive temperatures or cold stream underneath hefty hundreds.
Other advantages of plastic ball bearings incorporate their lower density, substantial hardness and low friction coefficient, and potential to face up to heat and corrosion. Ceramics are also light-weight, non-conductive, and have exceptional resistance to friction. These products can face up to temperatures up to 1,800 levels Fahrenheit. If you’re in the industry for a plastic ball bearing, it really is crucial to decide on the correct variety of content. And if you’re hunting for a high-top quality bearing, look no additional.

China Best Sales Turntable Bearing Ball Bearing 230.21.0675.013 Slewing Ring Bearing with Flanges     near me factory China Best Sales Turntable Bearing Ball Bearing 230.21.0675.013 Slewing Ring Bearing with Flanges     near me factory