China 864mm Small Diameter Slewing Bearing for Truck Mounted Crane bearing assembly

Product Description

864 mm small size slewing bearing for truck mounted crane.

Brief introduction our CZPT bearings

1.introduction:we are a manufacturer of slewing bearing since 1993, our factory occupies a area of 30000square meters with 4 workshop and 1 office building. 
2. Featured products: slewing bearing and slewing drive
3. Capital: Current is 1 million RMB, but we are increasing the capital to 10 million RMB
4. Workers: 40
5. Certificate: ISO9001:2008, 3.1 certificate, CCS certificate, Science and Technology Progress Award
6. Annual Exportation: 8million USD
7. Exported countries: (39)
Asia: India, Pakistan, Iran, Signore, Georgia, Malaysia, Vietnam, Thailand, Philippines, Israel, Korea, UAE, Sri Lanka, Saudi Arabia,
Europe: Turkey, Russia, Spain, Czech Republic, Italy, Poland, Slovakia, Bosnia and Herzegovina, Austria, France, Germany, Switzerland, Finland, Ukraine, UK
America: USA, Canada, Mexico, Brazil, Puerto Rico, Peru, Chile
Africa: South Africa, Egypt
Oceania: Australia

 Introduction of CZPT single row ball slewing bearings

LYHY is a professional manufacturer in slewing ring bearings since 1993. We can also design and make other standard and non-standard ball bearings, roller bearings and precision bearings as per customer’s different technical requirements.
Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing.
The single row ball slewing ring bearing is composed of 2 seat-rings. The balls contact with the circular race at 4 points, via which the axial force, radial force and resultant moment may be born simultaneously.

Structure:
Single row ball slewing bearing has 3 different types:
Single row ball slewing bearing with no gear
Single row ball slewing bearing with external gear
Single row ball slewing bearing with internal gear

LYHY Production Process

Quality Control Process of CZPT slewing bearings

LYHY 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;

INSTALLATION OF CZPT SLEWING BEARINGS

Preparation:
Make sure that the model is correct and slewing bearing isn’t damaged during transportation.
2.  Check the appearance and rotational state of the bearing, such as rotational precision clearance, rotating flexibility, seals position, lubrication grease etc.
3.  The installation datum plane and bracket installing plane should be clean, grease, burr, paint and other foreign body should be wiped off.

Installation:

1. The screws in the installing plane should be fit with the mounting holes in the slewing bearing
2.  The slewing bearing has a soft zone marked with an “s” on the upper surface, when installing the bearing, it is important to ensure that this area is placed in a non-load or infrequent load zone.
3.  When the bearing is placed on the supporting frame work it is important to check the interface between these 2 surfaces. This check should be carried out with the insertion of feel gauges between the 2 surfaces. If a gap should exist then it is recommended to plane/resurface the effective area so as to remove the gap.
4.  Install slewing bearing with high strength screws, and choose appropriate strength bolts. All bolts are required to be tightened evenly. The sequence of this tightening process is shown in Pic. Welding of bearing is not allowed, in the event of welding any adjacent parts, heat transfer shall be avoided so as to cause the bearing to become deformed or change the hardness.
5.  After installation, the bearing should be rotated to check for smooth operation and any emission of unusual noise. If either of the aforementioned are noted, then the bearing should be adjusted to eliminate them. The teeth of the largest run-out are coated with green paint.

FAQ:

Q: Are LYHY BEARINGS trading company or manufacturer?
A: LYHY BEARINGS is a professional manufacturer for slewing bearings, thin section bearings, ball bearings and rolling bearings

Q: How do LYHY BEARINGS control quality of their bearing?
A: LYHY BEARINGS has established strict quality control systems, all the products and services has passed ISO9001-2008 Quality Certificate and third party such as CCS, LR,ABS,BV

Q: What is the MOQ?
A: MOQ is 1pc, pls message us for detailed information.

Q: How about the package for CZPT bearings?
A: Standard Industrial packing in general condition (Plastic tube+ professional plastic belts+ plywood case). Accept design package when OEM.

Q: How long is the production time?
A: It takes about 7-40 days, depends on the model and quantity.

Q: How about the shipping?
A: We can arrange the shipment or you may have your own forwarder.

Q: Is sample available?
A: Yes, sample order is acceptable.

Q: Can we use our own LOGO or design on bearings?
A: Yes. OEM is acceptable for LYHY BEARINGS. We can design as per your requirements and use your own LOGO and package design.

 Model
None gear External Gear Internal Gear
571.20.200 011.20.200 /
571.20.224 011.20.224 /
571.20.250 011.20.250 /
571.20.280 011.20.280 /
571.25.315 011.25.315 013.25.315
571.25.355 011.25.355 013.25.355
571.25.400 011.25.400 013.25.400
571.25.450 011.25.450 013.25.450
571.30.500 011.30.500 013.30.500
012.30.500 014.30.500
571.25.500 011.25.500 013.25.500
012.25.500 014.25.500
571.30.560 011.30.560 013.30.560
012.30.560 014.30.560
571.25.560 011.25.560 013.25.560
012.25.560 014.25.560
571.30.630 011.30.630 013.30.630
012.30.630 014.30.630
571.25.630 011.25.630 013.25.630
012.25.630 014.25.630
571.30.710 011.30.710 013.30.710
012.30.710 014.30.710
571.25.710 011.25.710 013.25.710
012.30.710 014.25.710
571.30.955.11 / /
571.40.800 011.40.800 013.40.800
012.40.800 014.40.800
571.30.800 011.30.800 013.30.800
012.30.800 014.30.800
571.40.900 011.40.900 013.40.900
012.40.900 014.40.900
571.30.900 011.30.900 013.30.900
012.30.900 014.30.900
571.40.1000 011.40.1000 013.40.1000
012.40.1000 014.40.1000
571.30.1000 011.30.1000 013.30.1000
012.30.1000 014.30.1000
571.40.1120 011.40.1120 013.40.1120
012.40.1120 014.40.1120
011.40.1120.12K /
012.40.1120.12K1 /
571.30.1120 011.30.1120 013.30.1120
012.30.1120 014.30.1120
571.45.1250 011.45.1250 013.45.1250
011.45.1250 014.45.1250
571.35.1250 011.35.1250 013.35.1250
011.35.1250 014.35.1250
571.45.1400 011.45.1400 013.45.1400
012.45.1400 014.45.1400
571.35.1400 011.35.1400 013.35.1400
012.35.1400 014.35.1400
571.45.1600 011.45.1600 013.45.1600
012.45.1600 014.45.1600
571.35.1600 011.35.1600 013.35.1600
012.35.1600 014.35.1600
571.45.1800 011.45.1800 013.45.1800
012.45.1800 014.45.1800
011.45.1800.05 /
571.35.1800 011.35.1800 013.35.1800
012.35.1800 014.35.1800
571.60.2000 011.60.2000 013.60.2000
012.60.2000 014.60.2000
012.60.2000.12K /
571.40.2000 011.40.2000 013.40.2000
012.40.2000 014.40.2000
571.60.2240 011.60.2240 013.60.2240
012.60.2240 014.60.2240
571.40.2240 011.40.2240 013.40.2240
012.40.2240 014.40.2240
571.60.2500 011.60.2500 013.60.2500
012.60.2500 014.60.2500
571.40.2500 011.40.2500 013.40.2500
012.40.2500 014.40.2500
571.60.2800 011.60.2800 013.60.2800
012.60.2800 014.60.2800
571.40.2800 011.40.2800 013.40.2800
012.40.2800 014.40.2800
571.75.3150 011.75.3150 013.75.3150
012.75.3150 014.75.3150
571.50.3150 011.50.3150 013.50.3150
012.50.3150 014.50.3150
571.75.3550 011.75.3550 013.75.3550
012.75.3550 014.75.3550
571.50.3550 011.50.3550 013.50.3550
012.50.3550 014.50.3550
571.75.4000 011.75.4000 013.75.4000
012.75.4000 014.75.4000
571.50.4000 011.50.4000 013.50.4000
012.50.4000 014.50.4000
571.75.4500 011.75.4500 013.75.4500
012.75.4500 014.75.4500
571.50.4500 011.50.4500 013.50.4500
012.50.4500 014.50.4500

 

Standard or Nonstandard: Standard
Feature: High Speed
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Four Point Contact Ball
Material: 50mn, 42CrMo

###

Samples:
US$ 720/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

 Model
None gear External Gear Internal Gear
010.20.200 011.20.200 /
010.20.224 011.20.224 /
010.20.250 011.20.250 /
010.20.280 011.20.280 /
010.25.315 011.25.315 013.25.315
010.25.355 011.25.355 013.25.355
010.25.400 011.25.400 013.25.400
010.25.450 011.25.450 013.25.450
010.30.500 011.30.500 013.30.500
012.30.500 014.30.500
010.25.500 011.25.500 013.25.500
012.25.500 014.25.500
010.30.560 011.30.560 013.30.560
012.30.560 014.30.560
010.25.560 011.25.560 013.25.560
012.25.560 014.25.560
010.30.630 011.30.630 013.30.630
012.30.630 014.30.630
010.25.630 011.25.630 013.25.630
012.25.630 014.25.630
010.30.710 011.30.710 013.30.710
012.30.710 014.30.710
010.25.710 011.25.710 013.25.710
012.30.710 014.25.710
010.30.955.11 / /
010.40.800 011.40.800 013.40.800
012.40.800 014.40.800
010.30.800 011.30.800 013.30.800
012.30.800 014.30.800
010.40.900 011.40.900 013.40.900
012.40.900 014.40.900
010.30.900 011.30.900 013.30.900
012.30.900 014.30.900
010.40.1000 011.40.1000 013.40.1000
012.40.1000 014.40.1000
010.30.1000 011.30.1000 013.30.1000
012.30.1000 014.30.1000
010.40.1120 011.40.1120 013.40.1120
012.40.1120 014.40.1120
011.40.1120.12K /
012.40.1120.12K1 /
010.30.1120 011.30.1120 013.30.1120
012.30.1120 014.30.1120
010.45.1250 011.45.1250 013.45.1250
011.45.1250 014.45.1250
010.35.1250 011.35.1250 013.35.1250
011.35.1250 014.35.1250
010.45.1400 011.45.1400 013.45.1400
012.45.1400 014.45.1400
010.35.1400 011.35.1400 013.35.1400
012.35.1400 014.35.1400
010.45.1600 011.45.1600 013.45.1600
012.45.1600 014.45.1600
010.35.1600 011.35.1600 013.35.1600
012.35.1600 014.35.1600
010.45.1800 011.45.1800 013.45.1800
012.45.1800 014.45.1800
011.45.1800.05 /
010.35.1800 011.35.1800 013.35.1800
012.35.1800 014.35.1800
010.60.2000 011.60.2000 013.60.2000
012.60.2000 014.60.2000
012.60.2000.12K /
010.40.2000 011.40.2000 013.40.2000
012.40.2000 014.40.2000
010.60.2240 011.60.2240 013.60.2240
012.60.2240 014.60.2240
010.40.2240 011.40.2240 013.40.2240
012.40.2240 014.40.2240
010.60.2500 011.60.2500 013.60.2500
012.60.2500 014.60.2500
010.40.2500 011.40.2500 013.40.2500
012.40.2500 014.40.2500
010.60.2800 011.60.2800 013.60.2800
012.60.2800 014.60.2800
010.40.2800 011.40.2800 013.40.2800
012.40.2800 014.40.2800
010.75.3150 011.75.3150 013.75.3150
012.75.3150 014.75.3150
010.50.3150 011.50.3150 013.50.3150
012.50.3150 014.50.3150
010.75.3550 011.75.3550 013.75.3550
012.75.3550 014.75.3550
010.50.3550 011.50.3550 013.50.3550
012.50.3550 014.50.3550
010.75.4000 011.75.4000 013.75.4000
012.75.4000 014.75.4000
010.50.4000 011.50.4000 013.50.4000
012.50.4000 014.50.4000
010.75.4500 011.75.4500 013.75.4500
012.75.4500 014.75.4500
010.50.4500 011.50.4500 013.50.4500
012.50.4500 014.50.4500
Standard or Nonstandard: Standard
Feature: High Speed
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Four Point Contact Ball
Material: 50mn, 42CrMo

###

Samples:
US$ 720/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

 Model
None gear External Gear Internal Gear
010.20.200 011.20.200 /
010.20.224 011.20.224 /
010.20.250 011.20.250 /
010.20.280 011.20.280 /
010.25.315 011.25.315 013.25.315
010.25.355 011.25.355 013.25.355
010.25.400 011.25.400 013.25.400
010.25.450 011.25.450 013.25.450
010.30.500 011.30.500 013.30.500
012.30.500 014.30.500
010.25.500 011.25.500 013.25.500
012.25.500 014.25.500
010.30.560 011.30.560 013.30.560
012.30.560 014.30.560
010.25.560 011.25.560 013.25.560
012.25.560 014.25.560
010.30.630 011.30.630 013.30.630
012.30.630 014.30.630
010.25.630 011.25.630 013.25.630
012.25.630 014.25.630
010.30.710 011.30.710 013.30.710
012.30.710 014.30.710
010.25.710 011.25.710 013.25.710
012.30.710 014.25.710
010.30.955.11 / /
010.40.800 011.40.800 013.40.800
012.40.800 014.40.800
010.30.800 011.30.800 013.30.800
012.30.800 014.30.800
010.40.900 011.40.900 013.40.900
012.40.900 014.40.900
010.30.900 011.30.900 013.30.900
012.30.900 014.30.900
010.40.1000 011.40.1000 013.40.1000
012.40.1000 014.40.1000
010.30.1000 011.30.1000 013.30.1000
012.30.1000 014.30.1000
010.40.1120 011.40.1120 013.40.1120
012.40.1120 014.40.1120
011.40.1120.12K /
012.40.1120.12K1 /
010.30.1120 011.30.1120 013.30.1120
012.30.1120 014.30.1120
010.45.1250 011.45.1250 013.45.1250
011.45.1250 014.45.1250
010.35.1250 011.35.1250 013.35.1250
011.35.1250 014.35.1250
010.45.1400 011.45.1400 013.45.1400
012.45.1400 014.45.1400
010.35.1400 011.35.1400 013.35.1400
012.35.1400 014.35.1400
010.45.1600 011.45.1600 013.45.1600
012.45.1600 014.45.1600
010.35.1600 011.35.1600 013.35.1600
012.35.1600 014.35.1600
010.45.1800 011.45.1800 013.45.1800
012.45.1800 014.45.1800
011.45.1800.05 /
010.35.1800 011.35.1800 013.35.1800
012.35.1800 014.35.1800
010.60.2000 011.60.2000 013.60.2000
012.60.2000 014.60.2000
012.60.2000.12K /
010.40.2000 011.40.2000 013.40.2000
012.40.2000 014.40.2000
010.60.2240 011.60.2240 013.60.2240
012.60.2240 014.60.2240
010.40.2240 011.40.2240 013.40.2240
012.40.2240 014.40.2240
010.60.2500 011.60.2500 013.60.2500
012.60.2500 014.60.2500
010.40.2500 011.40.2500 013.40.2500
012.40.2500 014.40.2500
010.60.2800 011.60.2800 013.60.2800
012.60.2800 014.60.2800
010.40.2800 011.40.2800 013.40.2800
012.40.2800 014.40.2800
010.75.3150 011.75.3150 013.75.3150
012.75.3150 014.75.3150
010.50.3150 011.50.3150 013.50.3150
012.50.3150 014.50.3150
010.75.3550 011.75.3550 013.75.3550
012.75.3550 014.75.3550
010.50.3550 011.50.3550 013.50.3550
012.50.3550 014.50.3550
010.75.4000 011.75.4000 013.75.4000
012.75.4000 014.75.4000
010.50.4000 011.50.4000 013.50.4000
012.50.4000 014.50.4000
010.75.4500 011.75.4500 013.75.4500
012.75.4500 014.75.4500
010.50.4500 011.50.4500 013.50.4500
012.50.4500 014.50.4500

How to Replace a Bearing

If you want to select a bearing for a specific application, you should know a few basics. This article will give you an overview of ball, angular contact, and sliding-contact bearings. You can choose a bearing according to the application based on the characteristics of its material and preload. If you are not sure how to choose a bearing, try experimenting with it. The next step is to understand the Z-axis, which is the axes along which the bearing moves.

Z axis

When it comes to replacing your Z axis bearing, there are several things you must know. First, you need to make sure that the bearings are seated correctly. Then, you should check the tension and rotation of each one. To ensure that both bearings are equally tensioned, you should flex the Core to the desired angle. This will keep the Z axis perpendicular to the work surface. To do this, first remove the Z axis bearing from its housing and insert it into the Z axis motor plate. Next, insert the flanged bearing into the Z axis motor plate and secure it with two M5x8mm button head cap screws.
Make sure that the bearing plate and the Z Coupler part are flush and have equal spacing. The spacing between the two parts is important, as too much spacing will cause the leadscrew to become tight. The screws should be very loose, with the exception of the ones that engage the nylocks. After installing the bearing, the next step is to start the Z axis. Once this is done, you’ll be able to move it around with a stepper.

Angular contact

bearing
Ball bearings are made with angular contacts that result in an angle between the bearing’s races. While the axial load moves in one direction through the bearing, the radial load follows a curved path, tending to separate the races axially. In order to minimize this frictional effect, angular contact bearings are designed with the same contact angle on the inner and outer races. The contact angle must be chosen to match the relative proportions of the axial and radial loads. Generally, a larger contact angle supports a higher axial load, while reducing radial load.
Ball bearings are the most common type of angular contact bearings. Angular contact ball bearings are used in many applications, but their primary purpose is in the spindle of a machine tool. These bearings are suitable for high-speed, precision rotation. Their radial load capacity is proportional to the angular contact angle, so larger contact angles tend to enlarge with speed. Angular contact ball bearings are available in single and double-row configurations.
Angular contact ball bearings are a great choice for applications that involve axial loads and complex shapes. These bearings have raceways on the inner and outer rings and mutual displacement along the axial axis. Their axial load bearing capacity increases as the contact Angle a rises. Angular contact ball bearings can withstand loads up to five times their initial weight! For those who are new to bearings, there are many resources online dedicated to the subject.
Despite their complexity, angular contact ball bearings are highly versatile and can be used in a wide range of applications. Their angular contact enables them to withstand moderate radial and thrust loads. Unlike some other bearings, angular contact ball bearings can be positioned in tandem to reduce friction. They also feature a preload mechanism that removes excess play while the bearing is in use.
Angular contact ball bearings are made with different lubricants and cage materials. Standard cages for angular contact ball bearings correspond to Table 1. Some are machined synthetic resins while others are molded polyamide. These cage materials are used to further enhance the bearing’s axial load capacity. Further, angular contact ball bearings can withstand high speeds and radial loads. Compared to radial contact ball bearings, angular contact ball bearings offer the greatest flexibility.

Ball bearings

bearing
Ball bearings are circular structures with two separate rings. The smaller ring is mounted on a shaft. The inner ring has a groove on the outer diameter that acts as a path for the balls. Both the inner and outer ring surfaces are finished with very high precision and tolerance. The outer ring is the circular structure with the rolling elements. These elements can take many forms. The inner and outer races are generally made of steel or ceramic.
Silicon nitride ceramic balls have good corrosion resistance and lightweight, but are more expensive than aluminum oxide balls. They also exhibit an insulating effect and are self-lubricating. Silicon nitride is also suitable for high-temperature environments. However, this type of material has the disadvantage of wearing out rapidly and is prone to cracking and shattering, as is the case with bearing steel and glass. It’s also less resistant to heat than aluminum oxide, so it’s best to buy aluminum nitride or ceramic ball bearings for applications that are subjected to extremely high temperatures.
Another type of ball bearings is the thrust bearing. It has a special design that accommodates forces in both axial and radial directions. It is also called a bidirectional bearing because its races are side-by-side. Axial ball bearings use a side-by-side design, and axial balls are used when the loads are transmitted through the wheel. However, they have poor axial support and are prone to separating during heavy radial loads.
The basic idea behind ball bearings is to reduce friction. By reducing friction, you’ll be able to transfer more energy, have less erosion, and improve the life of your machine. With today’s advances in technology, ball bearings can perform better than ever before. From iron to steel to plastics, the materials used in bearings have improved dramatically. Bearings may also incorporate an electromagnetic field. So, it’s best to select the right one for your machine.
The life expectancy of ball bearings depends on many factors, including the operating speed, lubrication, and temperature. A single million-rpm ball bearing can handle between one and five million rotations. As long as its surface contact area is as small as possible, it’s likely to be serviceable for at least one million rotations. However, the average lifespan of ball bearings depends on the application and operating conditions. Fortunately, most bearings can handle a million or more rotations before they start showing signs of fatigue.

Sliding-contact bearings

bearing
The basic principle behind sliding-contact bearings is that two surfaces move in contact with one another. This type of bearing works best in situations where the surfaces are made of dissimilar materials. For instance, a steel shaft shouldn’t run in a bronze-lined bore, or vice versa. Instead, one element should be harder than the other, since wear would concentrate in that area. In addition, abrasive particles tend to force themselves into the softer surface, causing a groove to wear in that part.
Sliding-contact bearings have low coefficients of friction and are commonly used in low-speed applications. Unlike ball and roller bearings, sliding contact bearings have to be lubricated on both sides of the contacting surfaces to minimize wear and tear. Sliding-contact bearings generally are made of ceramics, brass, and polymers. Because of their lower friction, they are less accurate than rolling-element bearings.
Sliding-contact bearings are also known as plain or sleeve bearings. They have a sliding motion between their two surfaces, which is reduced by lubrication. This type of bearing is often used in rotary applications and as guide mechanisms. In addition to providing sliding action, sliding-contact bearings are self-lubricating and have high load-carrying capacities. They are typically available in two different types: plain bearings and thrust bearings.
Sliding-contact linear bearing systems consist of a moving structure (called the carriage or slide) and the surfaces on which the two elements slide. The surfaces on which the bearing and journal move are called rails, ways, or guides. A bore hole is a complex geometry, and a minimum oil film thickness h0 is usually used at the line of centers. It is possible to have a sliding-contact bearing in a pillow block.
Because these bearings are porous, they can absorb 15 to 30% of the lubrication oil. This material is commonly used in automobile and machine tools. Many non-metallic materials are used as bearings. One example is rubber, which offers excellent shock absorbency and embeddability. While rubber has poor strength and thermal conductivity, it is commonly used in deep-well pumps and centrifugal pumps. This material has high impact strength, but is not as rigid as steel.

China 864mm Small Diameter Slewing Bearing for Truck Mounted Crane     bearing assemblyChina 864mm Small Diameter Slewing Bearing for Truck Mounted Crane     bearing assembly
editor by czh 2022-11-28