Product Description

Product Description

Bearing type Shaft diameter(mm) Roundness Perpendicularity Cylindricity Roughness
Nominal dimension Upper deviation Lower deviation t1(μm) t3(μm) t4(μm) Ra(μm)
YRT50 50 0 -0.011 3 3 3 0.4
YRT80 80 0 -0.013 3 3 3 0.4
YRT(KLDF)100 100 0 -0.015   4 4 0.4
YRT(KLDF)120 120 0 -0.015 4 4 4 0.4
YRT(KLDF)150 150 0 -0.018 5 5 5 0.8
YRT(KLDF)180 180 0 -0.018 5 5 5 0.8
YRT(KLDF)200 200 0 -0.02 7 7 7 0.8
YRT(KLDF)260 260 0 -0.571 8 8 8 0.8
YRT(KLDF)325 325 0 -0.571 9 9 9 0.8
YRT(KLDF)395 395 0 -0.571 9 9 9 0.8
YRT(KLDF)460 460 0 -0.571 10 10 10 0.8
YRT(KLDF)580 580 0 -0.571 11 11 11 1.6
YRT(KLDF)650 650 0 -0.032 12 12 12 1.6
YRT850 850 0 -0.036 14 14 14 1.6
YRT950 950 0 -0.036 14 14 14 1.6
YRT1030 1030 0 -0.045 16 16 16 1.6
YRT1200 1200 0 -0.054 18 18 18 1.6

Company Profile
UKL Bearing Manufacturing Co., Ltd., founded in 2002, is a group company integrating R & D, production, sales and after-sales service. The registered brand is UKL. With advanced production equipment and testing instruments, we have the ability to produce high-quality products to replace high-quality brands.

UKL Bearing Manufacturing Co., Ltd. as an export enterprise and has 3 production bases in HangZhou, ZheJiang and HangZhou, China. Our HangZhou factory produces spherical roller bearings, ZheJiang factory produces ball bearings and bearing units, and HangZhou factory mainly produces oversized ball bearings and roller bearings. In addition, our company completed the construction of ZheJiang second new type factory in November 2571, specializing in the production of precision angular contact ball bearings, robot bearings, and special bearings for screw rods. Our company has a comprehensive purchasing and trading network for other types of bearings, such as cylindrical roller bearings, self-aligning ball bearings, tapered roller bearings and spherical roller thrust bearings. With our strict quality management system and professional sales team, we will provide you with high-quality products, preferential prices and excellent after-sales service.

UKL bearings are widely used as supporting products in metallurgy, mining, petroleum, chemical industry, coal, cement, papermaking, wind power, heavy machinery, engineering machinery, port machinery, automation equipment, automobile and other industries. The production accuracy can reach P0, P6, P5, P4.
The company adheres to the business philosophy of “excellence, CZPT service, meticulous manufacturing and brand strategy”, and cooperates with customers at home and abroad on the principle of integrity and fairness. The company has successfully passed ISO9001 quality management system certification and ISO14001 environmental management system certification.

Workshop

 

Testing Room

Warehouse

Packing

Certificates

 

FAQ

1.Q:What the MOQ of your company?
A:MOQ is 1pc.
2.Q:Could you accept OEM and customize?
A:YES,we can customize for you according to sample or drawing.
3.Q:Could you supply sample for free?
A:Yes,we can supply sample for free,do you mind to buy her a ticket?
4.Q:IS you company factory or Trade Company?
A:We have our own factory ;our type is factory +trade.
5.Q:Could you tell me the material of your bearing?
A:We have chrome steel,carbon steel and staninless steel,ceramic and plastic material.
6.Q:Could you offer door to door service?
A:Yes,by express(DHL,FEDEX,TNT,EMS,4-10 days to your city.)
7.Q:Coould you tell me the payment term of your company can accept?
A:T/T.L/C,Western Union,PayPal
8.Q:Could you tell me the delivery time of your doods?
A:If stock,in 7days or base on your order quantity.

Please do not hesitate to contact us for further informations!!!

  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Item Name: Cross Roller Bearing
Advantage: Low Noise, Low Vibration, High Precesion
Application: Mining, Petroleum, Automatic
Grade: P0, P6, P5, P4, P2
Warranty: 12 Months
Custom Service: Available
Samples:
US$ 10/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

slewing bearing

What is the Typical Lifespan of Slewing Bearings under Different Operating Conditions?

The lifespan of slewing bearings can vary based on different operating conditions and factors that influence wear and fatigue. Here’s a general overview of the typical lifespan under various scenarios:

  • Light Loads and Proper Lubrication:

When operating under light axial, radial, and moment loads and with consistent and proper lubrication, slewing bearings can often exceed 20,000 to 30,000 hours of service life.

  • Heavy Loads and Harsh Environments:

In heavy-duty applications where the bearings handle substantial loads, such as construction equipment or mining machinery, the lifespan might range from 10,000 to 20,000 hours. Harsh environments with dust, moisture, and corrosive substances can affect the bearing’s durability.

  • Corrosive Environments:

In environments with high levels of corrosion, such as marine applications, the lifespan of slewing bearings might be reduced due to the impact of corrosive elements on the bearing’s materials.

  • High-Speed Applications:

In applications requiring high rotational speeds, such as certain automation systems or machinery, the bearing’s lifespan might be affected due to increased friction and wear associated with higher speeds.

  • Poor Lubrication and Maintenance:

If proper lubrication and maintenance practices are neglected, the bearing’s lifespan can be significantly shortened. Insufficient lubrication leads to increased friction and wear, potentially reducing the lifespan by a considerable margin.

  • Shock and Impact Loads:

Applications subject to frequent shock and impact loads, like certain material handling equipment, can experience premature wear and fatigue, leading to a reduced lifespan.

  • Temperature Extremes:

Operating in extreme temperatures, whether high or low, can affect the performance of slewing bearings and potentially reduce their lifespan due to changes in material properties and lubrication effectiveness.

  • Customization and Quality:

The quality of the bearing, manufacturing processes, and the extent of customization also play a role. High-quality bearings designed for specific applications might offer longer lifespans.

  • Manufacturer’s Recommendations:

Always refer to the manufacturer’s guidelines and recommendations for the specific slewing bearing model. They provide valuable insights into maintenance intervals, lubrication, and expected service life.

It’s important to note that these are general estimates, and actual lifespans can vary depending on numerous factors. Regular maintenance, proper lubrication, adherence to guidelines, and consideration of operating conditions are essential for maximizing the lifespan of slewing bearings.

slewing bearing

What are the Signs of a Damaged or Worn-out Slewing Bearing that Requires Replacement?

Identifying the signs of a damaged or worn-out slewing bearing is essential for preventing potential failures and ensuring equipment reliability. Here are common indicators that a slewing bearing may require replacement:

  • Unusual Noise:

If you notice grinding, clicking, or any abnormal noises during operation, it could be a sign of wear or misalignment in the slewing bearing.

  • Increased Vibration:

Excessive vibration or shaking during rotation could indicate misalignment, damage, or uneven wear in the slewing bearing.

  • Irregular Movement:

If the machinery exhibits irregular or jerky movement instead of smooth rotation, it might be due to a damaged slewing bearing.

  • Uneven Load Distribution:

Uneven distribution of loads can lead to accelerated wear on specific sections of the bearing, causing premature failure.

  • Abnormal Heat Generation:

If the slewing bearing becomes excessively hot during operation, it may suggest friction, misalignment, or lack of proper lubrication.

  • Excessive Play or Clearance:

Too much axial or radial play in the bearing can indicate wear, misalignment, or component fatigue, requiring inspection and potential replacement.

  • Leakage of Lubricant:

If lubricant leaks from the bearing or seals, it may signify damage to the sealing mechanism or an internal issue that needs attention.

  • Visible Wear or Damage:

Inspect the bearing for visible signs of wear, corrosion, pitting, or other forms of damage. Cracks, dents, or deformation are clear indicators of potential problems.

  • Reduced Performance:

If the machinery’s performance deteriorates, such as decreased rotation speed, reduced load capacity, or increased power consumption, it could be due to a failing slewing bearing.

  • Increased Maintenance Frequency:

If you find yourself needing to perform more frequent maintenance or repairs on the bearing, it might indicate that the bearing is nearing the end of its service life.

  • Manufacturer’s Service Life:

Consult the manufacturer’s guidelines for the expected service life of the slewing bearing. If the bearing is approaching this limit, it’s advisable to consider replacement.

If any of these signs are observed, it’s important to consult with experts and consider replacing the slewing bearing to prevent further damage and ensure the safe and efficient operation of machinery.

slewing bearing

What is a Slewing Bearing and How Does It Work?

A slewing bearing, also known as a turntable bearing, is a specialized type of rolling-element bearing designed to handle axial, radial, and moment loads simultaneously. It allows rotational movement between two parts while supporting the loads applied to them. Slewing bearings are commonly used in various applications such as cranes, construction equipment, wind turbines, and industrial machinery.

At its core, a slewing bearing consists of multiple components, including an outer ring, an inner ring, rolling elements (balls or rollers), and in some designs, a gear or teeth arrangement. The outer ring is typically stationary and mounted to a fixed structure, while the inner ring is connected to the rotating part. The rolling elements provide smooth movement between the two rings, enabling rotation.

Slewing bearings work by minimizing friction and distributing loads effectively across the rolling elements. When a rotational force is applied to the inner ring, the rolling elements facilitate the smooth rotation of the inner ring relative to the outer ring. The rolling elements are positioned within raceways or grooves in the rings, ensuring proper contact and load distribution.

The addition of gears or teeth to the slewing bearing design enables the transmission of torque between the inner and outer rings. This feature is particularly useful when precise rotation control is required, as seen in applications like cranes and heavy machinery.

In summary, a slewing bearing functions as a rotational joint that can support various loads and movements. Its design, which includes rolling elements and optional gear systems, allows it to manage axial, radial, and moment loads while facilitating smooth rotation between connected parts.

China Good quality CZPT Single Row Slewing Bearing Yrt650 Cross Roller Bearing for Marine Cranes   bearing blockChina Good quality CZPT Single Row Slewing Bearing Yrt650 Cross Roller Bearing for Marine Cranes   bearing block
editor by CX 2024-05-14

Slewing bearings

As one of the slewing bearings manufacturers, suppliers, and exporters of mechanical products, We offer slewing bearings and many other products.

Please get in touch with us for details.

Manufacturer supplier exporter of slewing bearings.

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