China Hot selling External Gear Slewing Ring Bearing Gear 01 3031 00 with Good quality

Product Description

Technical Parameter for 4 point contact ball slewing ring bearing

1. Type: Four point contact ball slewing bearing,slewing ring bearing,ball bearing
2. Bore diameter: 2914mm
3. Outside diameter: 3200mm
4. Height: 190
5. Material: 42CrMo, 50Mn
6. Precision: P0. P6. P5.
7. Cage/retainer: Nylon or aluminum
8. Gear type: External gear
9. N. W. 716kgs
10. Payment terms: TT, LC, DA

About 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

Single row ball slewing ring bearing
1. 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.

2. 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

3. Features
Single row ball slewing ring bearings have following features:
Compact in structure and light in weight.

Quality Control Process of CZPT slewing bearings

4. Application:
Single row ball slewing ring bearings are widely used in slewing conveyers, welding arm and positioned, medium duty cranes, excavators and other engineering machines

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;

All CZPT slewing ring bearings can be usually delivered timely, usual production time is 15-50 days based on different slew bearings diameters, sometimes slew rings will be in stock.
Slewing bearings can be offered different delivery terms, such as EXW, FOB, CIF, DDU and so on.
Also, slewing rings can be transported by different transport ways, by express (such as DHL, TNT, UPS, FEDEX and so on), by air, by sea, by truck, by railway and so on.


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.


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.

External Gear:
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Internal Gear
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, , , , , , , , , 07 0571 00, , , , , , 32 0571 01, 22 0571 01, , , , , , , , , , , , , , , , , , , , , , , , , ,
Without Gear
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, , , , , , , ,
, , , , , , 33 0571 01, 23 0571 01,
, , ,

External Diameter Internal Diameter Height  Weight  Module  Gear No. Model
244 125 25 5 2 120  
318 169 45 14 3 104
379 210 45 20 4 92
403.5 234 55 25 4.5 88
440 265 50 28 4.5 95
505 304 56 32 5 99
505 342 56 32 5 99
529 323 54 45 5 103
535 305 75 61 8 65
589 383 75 62 5 116
640 434 56 44 6 105
640 472 56 46 6 105
654 390 85 98 8 80
689 455 74 89 6 112
700 479 77 85 6 114
742 534 56 52 6 122
742 572 56 55 6 122
774 516 82 118 8 94
816 573 90 129 6 132
840 634 56 60 6 138
840 672 56 62 6 138
863 679 82 102 6 142
886 610 85 155 8 108
950 734 56 68 8 117
950 772 56 71 8 117
979 717 100 178 10 94
1571 770 82 159 8 125
1046 834 56 76 8 129 21 0571 01
1046 872 56 78 8 129 31 0571 01
1094 833 82 179 8 134
1144 869 100 228 10 111
1198 984 56 86 8 148
1198 1571 56 91 8 148
1218 930 98 268 10 119
1289.5 984 114 330 10 125
1358 1045 98 325 10 133
1431 1200 63 176 8 177
1476 1084 110 503 10 144
1604 1206 130 653 10 157
1605 1270 110 469 12 131
1727 1500 63 213 8 214
1836 1433 135 791 16 112
1929 1565 110 617 14 135
1975 1750 63 244 8 245
2571 1615 150 1004 14 142
2140 1720 130 953 16 131
2165 1950 68 278 8 269
2267 1815 140 1174 16 139
2342 2091 70 373 8 290
2390 1950 130 1111 18 130
2534 2042 144 1482 18 138
2695 2425 63 411 8 335
2790 2290 164 1895 18 151
3116 2600 164 2200 20 152
3200 2914 190 716 10 318


Q: Are LYHY BEARINGS trading company or manufacturer?
A: CZPT 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.

Standard or Nonstandard: Standard
Feature: Corrosion-Resistant
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Deep Groove Raceway
Material: 42CrMo
US$ 3500/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

ring gear

How do you choose the right size ring gear for your application?

Choosing the right size ring gear for a specific application involves considering several factors related to the gear system, load requirements, space constraints, and performance objectives. Here’s a detailed explanation of the process involved in selecting the appropriate size ring gear:

  1. Determine the Gear System Parameters: Understand the specific requirements of the gear system in which the ring gear will be used. This includes identifying the input power, desired output speed, torque requirements, and operating conditions such as temperature, vibration, and lubrication.
  2. Calculate Gear Ratios: Determine the required gear ratios for the gear system. Gear ratios define the relationship between the rotational speeds and torques of the driving and driven gears. By knowing the desired gear ratios, you can calculate the appropriate size of the ring gear relative to the other gears in the system.
  3. Evaluate Load Capacity: Assess the load capacity needed for the application. Consider the maximum torque and radial loads that the ring gear will experience during operation. It’s crucial to select a ring gear that can handle the anticipated loads without excessive wear, deformation, or failure.
  4. Consider Space Limitations: Determine the available space for the ring gear within the application. Consider the overall dimensions, such as the outer diameter, inner diameter, and thickness of the ring gear. Ensure that the selected size fits within the designated space without interfering with other components or compromising the overall functionality of the system.
  5. Account for Manufacturing Considerations: Consider the manufacturability of the ring gear. Evaluate factors such as the feasibility of producing the required tooth profile, the availability of suitable materials, and the manufacturing capabilities of the supplier. It’s important to choose a size that can be efficiently manufactured while meeting the required quality standards.
  6. Consult Design Guidelines and Standards: Refer to industry design guidelines, standards, and specifications specific to the type of gear and application. These guidelines provide recommendations and formulas for calculating gear sizes based on factors such as tooth strength, contact stress, and bending stress. Adhering to recognized standards ensures that the selected ring gear size is appropriate for the intended application.

It is often beneficial to consult with gear design engineers or industry experts to ensure the proper selection of the ring gear size. They can provide detailed analysis, simulation, and expertise in choosing the optimal size based on the specific requirements and constraints of the application.

By carefully considering these factors and following established design practices, you can choose the right size ring gear that will deliver reliable performance, efficient power transmission, and long-term durability for your application.

\ring gear

How do you prevent backlash and gear play in a ring gear mechanism?

Preventing backlash and gear play in a ring gear mechanism is crucial for ensuring accurate and precise operation. Here’s a detailed explanation of how to prevent backlash and gear play in a ring gear mechanism:

  • Precise Gear Design: The design of the ring gear and associated gears should be carefully engineered to minimize backlash. This involves selecting appropriate tooth profiles and gear geometry that promote proper meshing and minimize clearance between the gear teeth. The gear design should consider factors such as tooth thickness, pressure angle, and tooth contact ratio to achieve optimal gear meshing without excessive play.
  • Tight Manufacturing Tolerances: Close manufacturing tolerances are essential to reduce backlash in a ring gear mechanism. The gear components, including the ring gear and mating gears, should be produced with high precision to ensure accurate tooth dimensions and minimize any gaps or play between the gear teeth. Tight manufacturing tolerances help achieve a tighter meshing fit, reducing backlash and gear play.
  • Proper Gear Alignment: Accurate alignment of the ring gear and mating gears is crucial for minimizing backlash. The gears should be properly aligned along their axes to ensure precise engagement and minimize any misalignment that can contribute to play. Adequate alignment can be achieved through careful assembly techniques, such as using alignment fixtures, proper shimming, and precision measurement tools.
  • Preload or Pre-tension: Applying preload or pre-tension to the ring gear mechanism can help reduce backlash and gear play. Preload involves applying a slight compressive force or tension to eliminate any clearance or gaps between the gear teeth during operation. This can be achieved through various methods, such as using spring-loaded components, adjustable shims, or axial preloading devices.
  • Optimized Lubrication: Proper lubrication is essential for reducing friction and minimizing gear play. Lubricants with appropriate viscosity and film strength should be used to ensure smooth gear operation and reduce any unwanted movement or play between the gear teeth. Regular lubricant maintenance, such as monitoring oil levels and replenishing or replacing lubricants as needed, helps maintain optimal lubrication conditions and minimize backlash.
  • Mechanical Backlash Compensation: In some applications, mechanical compensation mechanisms can be employed to actively compensate for any residual backlash. These mechanisms can include systems with adjustable clearances, anti-backlash devices, or dual-gear arrangements that counteract the effects of backlash. Mechanical backlash compensation techniques can help maintain precise positioning and eliminate any undesired play in the gear mechanism.

By implementing these measures, it is possible to significantly reduce or eliminate backlash and gear play in a ring gear mechanism. Careful gear design, tight manufacturing tolerances, proper alignment, preload or pre-tension, optimized lubrication, and mechanical compensation techniques all play a role in ensuring accurate and precise operation of the ring gear mechanism.

ring gear

What is a ring gear and how does it work?

A ring gear is a type of gear that features teeth on the outer perimeter of a circular ring-shaped component. It is commonly used in various mechanical systems and applications. Here’s a detailed explanation of what a ring gear is and how it works:

A ring gear, also known as an annular gear or internal gear, is a gear with teeth on the inside circumference of a circular ring. It is designed to mesh with a pinion gear or another gear that has teeth on the outside. The combination of a ring gear and a pinion gear forms a gear set, enabling the transmission of rotational motion and torque between the two gears.

Here’s how a ring gear works:

  1. Tooth Engagement: When a ring gear and a pinion gear are brought together, the teeth of the pinion gear mesh with the teeth of the ring gear. The teeth of the pinion gear enter the spaces between the teeth of the ring gear, creating a mechanical connection between the two gears.
  2. Motion Transmission: As the driving gear (such as the pinion gear) rotates, it transfers rotational motion to the ring gear. The teeth of the driving gear push against the teeth of the ring gear, causing the ring gear to rotate in the opposite direction. This rotational motion can be used to drive other components or systems connected to the ring gear.
  3. Torque Transfer: The meshing of the teeth between the ring gear and the driving gear allows for the transfer of torque. Torque is the rotational force or twisting force applied to a gear. As the driving gear exerts torque on the ring gear through the meshing teeth, the ring gear experiences a torque load. This torque load can be transmitted to other components or systems connected to the ring gear.
  4. Gear Ratio: The gear ratio between the ring gear and the driving gear determines the speed and torque relationship between the two gears. The gear ratio is defined as the ratio of the number of teeth on the ring gear to the number of teeth on the driving gear. By changing the size or number of teeth on either the ring gear or the driving gear, the gear ratio can be adjusted to achieve the desired speed or torque output.
  5. Load Distribution: The ring gear distributes the load over a larger area compared to other types of gears. This load distribution characteristic allows the ring gear to handle higher loads and torque. The design of the ring gear and its tooth profile ensures that the load is evenly distributed across the surface of the gear, enhancing its durability and reducing the risk of premature wear or failure.

Ring gears are commonly used in various applications, including automotive transmissions, differential systems, planetary gear systems, industrial machinery, and power transmission equipment. They provide advantages such as compactness, high torque capacity, load distribution, and the ability to achieve high gear ratios.

It’s important to note that the design and characteristics of ring gears may vary depending on the specific application and requirements. Factors such as tooth profile, material selection, lubrication, and manufacturing techniques are carefully considered to ensure optimal performance and durability of the ring gear.

China Hot selling External Gear Slewing Ring Bearing Gear 01 3031 00 with Good qualityChina Hot selling External Gear Slewing Ring Bearing Gear 01 3031 00 with Good quality
editor by CX 2023-09-12