Product Description

 

Product Description

Excavator Bearing – Angular Contact Ball Bearing

 

Angular contact ball bearings are nonseparable bearings with a defined contact angle in the radial direction relative to the straight line that runs through the point where each ball makes contact with the inner and outer rings. In addition to radial loads, angular contact ball bearings can accommodate single direction axial loads. Since an axial load is generated from a radial force, these bearings are generally used in pairs. Typically ideal for machine tools, feed screw mechanisms, ball screw support units, etc.

 

 

 

Applications
 

Because they can bear heavy loads, angular contact bearings are used for heavy machinery and agricultural equipment. These bearings help run pumps, electric motors, gearboxes, steel mills, windmills, conveyors, and other high-speed applications.

Single Row Angular Contact Ball Bearing

Bearing type Boundary Dimensions(mm) Load Rating
(kn)
Speed Rating(ipm) Weight
New Model Old Model    d D B Dymamic Cr Static Cor Grease
lubrication
Oil
lubrication
Weight
(kg)
7000AC 46100 10 26 8 5 2.35 34000 42000 0.571
7001AC 46101 12 28 8 5.4 2.75 29000 37000 0.571
7002AC 46102 15 32 9 6.1 3.45 26000 32000 0.035
7003AC 46103 17 35 10 6.75 4.15 23000 28000 0.045
7004AC 46104 20 42 12 10.3 6.1 19000 24000 0.079
7005AC 46105 25 47 12 11.3 7.4 17000 21000 0.091
7006AC 46106 30 55 13 14.5 10.1 14000 18000 0.133
7007AC 46107 35 62 14 17.5 12.6 12000 15000 0.17
7008AC 46108 40 68 15 18.7 14.6 11000 14000 0.21
7009AC 46109 45 75 16 22.2 17.7 10000 12000 0.26
7571AC 46110 50 80 16 23.6 20.1 9200 11000 0.29
7011AC 46111 55 90 18 31.1 26.3 8300 10000 0.42
7012AC 46112 60 95 18 31.9 28.1 7700 9700 0.45
7013AC 46113 65 100 18 33.7 31.4 7200 9000 0.47
7014AC 46114 70 110 20 42.7 39.4   8300 0.66
7015AC 46115 75 115 20 43.6 41.7 6300 7800 0.69
7016AC 46116 80 125 22 53.4 50.6 5800 7200 0.93
7017AC 46117 85 130 22 54.6 53.7 5500 6800 0.97
7018AC 46118 90 140 24 65.2 63.3 5100 6400 1.26
7019AC 46119 95 145 24 66.6 67.1 4800 6000 1.32
7571AC 46120 100 150 24 68.4 70.6 4700 5900 1.37
7571AC 46121 105 160 26 79.8 81.9 4400 5500 1.73
7571AC 46122 110 170 28 91.9 92.8 4200 5200 2.14
7571AC 46124 120 180 28 96.6 103 3900 4900 2.27
7026AC 46126 130 200 33 117 125 3500 4400 3.43
7571AC 46128 140 210 33 120 133 3300 4100 3.64
7030AC 46130 150 225 35 137 154 3000 3800 4.43
7032AC 46132 160 240 38         5.02
7034AC 46134 170 260 42 186 214 2600 3200 7.56
7038AC 46138 190 290 46 217 268 2300 2800 10.8
7040AC 46140 200 310 51 244 309 2100 2600 12.7

 

Bearing type Boundary Dimensions(mm) Load Rating
(kn)
Speed Rating(ipm) Weight
New Model Old Model    d D B Dymamic Cr Static Cor Grease
lubrication
Oil
lubrication
Weight
(kg)
7200AC 46200 10 30 9 4.65 2.2 29000 37000 0.031
7201AC 46201 12 32 10 7.45 3.65 27000 34000 0.038
7202AC 46202 15 35 11 8.1 4.25 24000 29000 0.048
7203AC 46203 17 40 12 10.2 5.5 21000 26000 0.07
7204AC 46204 20 47 14 14.5 8.4 17000 22000 0.112
7205AC 46205 25 52 15 15.3 9.5 15000 19000 0.135
7206AC 46206 30 62 16 21.3 13.7 13000 16000 0.208
7207AC 46207 35 72 17 28.1 18.6 11000 14000 0.295
7208AC 46208 40 80 18 33.6 23.3 10000 12000 0.382
7209AC 46209 45 85 19 37.7 26.6 9400 12000 0.43
7210AC 46210 50 90 20 39.4 41.3 8500 11000 0.485
7211AC 46211 55 700 21 48.7 37.1 7600 9500 0.635
7212AC 46212 60 110 22 58.9 45.7 6900 8600 0.82
7213AC 46213 65 120 23 67.3 54.2 6400 8000 1.02
7214AC 46214 70 125 24 69.8 55.6 6100 7600 1.12
7215AC 46215 75 130 25 79.2 65.2 5800 7200 1.23
7216AC 46216 80 140 26 85.3 71.5 5400 6700 1.5
7217AC 46217 85 150 28 98.6 83.6 5000 6300 1.87
7218AC 46218 90 760 30 113 96.7 4700 5900 2.3
7219AC 46219 95 770 32 122 103 4400 5500 2.78
7220AC 46220 100 180 34 137 117 4100 5200 3.32
7221AC 46221 105 190 36 149 132 3900 4900 3.95
7222AC 46222 110 200 38 162 148 3700 4600 4.65
7224AC 46224 130 215 40 174 166 3400 4300 5.49
7226AC 46226 130 230 40 196 198 3200 4000 6.21
7228AC 46228 140 250 42 218 234 2900 3600 7.76
7232AC 46232 160 290 48 230 263 2500 3100 12.1
7234AC 46234 170 370 52 272 331 2300 2800 15.1
7236AC 46236 180 320 52 293 362 2200 2700 15.7
7240AC 46240 200 360 58 324 432 1900 2400 22.4
7244AC 46244 220 400 65 358 482 1100 1600 38.5

 

Bearing type Boundary Dimensions(mm) Load Rating Speed Rating(ipm) Weight
(kn)
New Model Old Model    d D B Dymamic Cr Static Cor Grease Oil Weight
lubrication lubrication (kg)
7300AC 46300 10 35 11 8.5 3.75 27000 33000 0.054
7301AC 46301 12 37 12 10.2 4.6 24000 31000 0.065
7302AC 46302 15 42 13 12.5 6.45 20000 25000 0.088
7303AC 46303 17 47 14 14.9 7.9 18000 23000 0.12
7304AC 46304 20 52 15 17.4 9.4 17000 21000 0.15
7305AC 46305 25 62 17 24.8 14.4 14000 17000 0.243
7306AC 46306 30 72 19 30.1 18.9 12000 14000 0.362
7307AC 46307 35 80 21 35.4 22 10000 13000 0.475
7308AC 46308 40 90 23 43.2 27.4 9200 12000 0.657
7309AC 46309 45 100 25 55.1 37.1 8200 10000 0.875
7310AC 46310 50 170 27 70.1 48.7 7300 9100 1.14
7311AC 46311 55 120 29 80.9 56.5 6700 8400 1.45
7312AC 46312 60 130 31 92.5 65.6 6200 7700 1.81
7313AC 46313 65 140 33 105 75.3 5800 7200 2.22
7314AC 46314 70 150 35 118 85.8 5400 6700 2.7
7315AC 46315 75 160 37 128 97 5000 6300 3.15
7316AC 46316 80 170 39 139 109 4700 5900 3.85
7317AC 46317 85 180 41 150 122 4400 5500 4.53
7318AC 46318 90 190 43 161 135 4200 5200 5
7319AC 46319 95 200 45 172 149 4000 4900 6.12
7320AC 46320 100 215 47 184 161 3600 4600 7.53
7321AC 46321 105 225 49 208 193 3500 4400 8.62
7322AC 46322 110 240 50 232 226 3200 4000 10.7
7324AC 46324 120 260 55 246 252 3000 3700 12.6
7326AC 46326 130 280 58 301 329 2700 3400 15.4
7328AC 46328 140 300 62 329 374 2500 3200 18.8
7330AC 46330 150 320 65 348 414 2300 2900 22.4
7332AC 46332 160 340 68 365 455 2200 2700 26.4
7334AC 46334 170 360 72 389 485 2000 2500 31.2
7336AC 46336 180 380 75 409 534 1900 2400 40
7338AC 46338 190 400 78 450 598 1800 2200 45.5
7340AC 46340 200 420 80 474 658 1700 2100 52
 
7406AC 46406 30 90 23   0.960
7407AC 46407 35 100 25   1.140
7408AC 46408 40 110 27   1.400
7409AC 46409 45 120 29   1.800
7410AC 46410 50 130 31   2.250
7411AC 46411 55 140 33   2.750
7412AC 46412 60 150 35   3.400
7413AC 46413 65 160 37   4.200
7414AC 46414 70 180 42   5.800
7415AC 46415 75 190 45   7.000
7416AC 46416 80 200 48   8.000

 

Bearing type Boundary Dimensions(mm) Load Rating
(kn)
Speed Rating(ipm) Weight
New Model Old Model    d D B Dymamic Cr Static Cor Grease
lubrication
Oil
lubrication
Weight
(kg)
7204BTN 66204 20 47 14 14.5 8.4 17000 22000 0.112
7205BTN 66205 25 52 15 15.3 9.5 15000 19000 0.135
7206BTN 66206 30 62 16 21.3 13.7 13000 16000 0.208
7207BTN 66207 35 72 17 28.1 18.9 11000 14000 0.295
7208BTN 66208 40 80 18 33.6 23.3 10000 12000 0.382
7209BTN 66209 45 85 19 37.7 27 9400 12000 0.43
7210BTN 66210 50 90 20 39.4 41.3 8500 11000 0.485
7211BTN 66211 55 100 21 48.7 37.1 7600 9500 0.635
7212BTN 66212 60 110 22 58.9 45.7 6900 8600 0.82
7213BTN 66213 65 120 23 67.3 54.2 6400 8000 1.02
7214BTN 66214 70 125 24 69.8 55.6 6100 7600 1.12
7215BTN 66215 75 130 25 79.2 65.2 5800 7200 1.23
7216BTN 66216 80 140 36 85.3 71.5 5400 6700 1.5
7217BTN 66217 85 150 28 98.6 83.6 5000 6300 1.87
7218BTN 66218 90 160 30 113 96.7 4700 5900 2.3
7219BTN 66219 95 170 32 122 103 4400 5500 2.78
7220BTN 66220 100 180 34 137 117 4700 5200 3.32
7221BTN 66221 105 190 36 149 132 3900 4900 3.95
7222BTN 66222 110 200 38 162 148 3700 4600 4.65
7224BTN 66224 120 215 40 174 166 3400 4300 5.49
7226BTN 66226 130 230 40 196 198 3200 4000 6.21
7228BTN 66228 140 250 42 218 234 2900 3600 7.76

 

Bearing type Boundary Dimensions(mm) Load Rating Speed Rating(ipm) Weight
(kn)
New Model Old Model    d D B Dymamic Cr Static Cor Grease Oil Weight
lubrication lubrication (kg)
7303BTN 66303 17 47 14 14.9 7.9 18000 23000 0.12
7304BTN 66304 20 52 15 17.4 9.4 17000 21000 0.15
7305BTN 66305 25 62 17 24.8 14.4 14000 77000 0.243
7306BTN 66306 30 72 19 30.1 19 12000 14000 0.362
7307BTN 66307 35 80 21 35.4 22 10000 13000 0.475
7308BTN 66308 40 90 23 43.2 27.4 9200 12000 0.657
7309BTN 66309 45 100 25 55.1 37.1 8200 10000 0.875
7310BTN 66310 50 110 27 70.1 48.1 7300 9100 1.14
7311BTN 66311 55 120 29 80.9 56.5 6700 8400 1.45
7312BTN 66312 60 130 31 92.5 65.6 6200 7700 1.81
7313BTN 66313 65 140 33 105 75.3 5800 7200 2.22
7314BTN 66314 70 150 35 118 85.8 5400 6700 2.7
7315BTN 66315 75 160 37 128 97 5000 6300 3.15
7316BTN 66316 80 170 39 139 109 4700 5900 3.85
7317BTN 66317 85 180 41 150 122 4400 5500 4.53
7318BTN 66318 90 190 43 161 135 4200 5200 5.3
7319BTN 66319 95 200 45 172 149 4000 4900 6.12
7320BTN 66320 100 215 47 184 161 3600 4600 7.53
7321BTN 66321 105 225 49 208 193 3500 4400 8.62
7322BTN 66322 110 240 50 232 226 3200 4000 10.1
7324BTN 66324 120 260 55 246 252 3000 3700 12.6

 

Packaging & Shipping

Please contact us for more pictures of different packing.

Universal Packing

Without any logo on bearings or packing.

JDZ Packing

With our brand JDZ on bearings and packing.

Customized Packing

Depends on buyer’s requirements.

Original Brand Packing

Bearing and packing are both original. Please contact us for pictures.

 

QUALITY ASSURANCE

100% Quality inspection to ensure the bearings are with good quality before shipping. 

Company Profile

 

 

ZheJiang CHINAMFG Precision Bearing Co.,Ltd. was founded by ZheJiang Defa Bearing Co.,Ltd, factory is located in ZheJiang province, China. 
We are a bearing manufacturer integrating the research, development and sales of bearings, with a floor area of 18,000 square CHINAMFG and a plant area of 8,800 square meters. Equipped with modern production equipment and advanced detection instruments. 

We can provide all types bearings and OEM service according to customers’ requirements. 

Our products are widely used in the automobile, agricultural, textile production, mining, printing and packing industries, in addition to various applications at airports, in air-conditioning systems, conveying devices, ships ad so on. Our products are being exported to more than 50 countries and regions overseas including Singapore, Thailand, Iran, Turkey, Poland, Italy, England, France, Russia, Germany, the United States, Australia, Argentina, Brazil as well as other countries and regions all over the world.

We are a trusted and reliable bearing supplier, choose us to be your good partner!

 

 

Our Advantages:

1.  Professional production team with advanced production equipment and testing instruments. 
2.  Many years of export experience can provide customers with better service and problem-solving capabilities.
3.  Customers all over the world enable us to better understand the market and provide customers with suitable bearings.
4.  Sincerity, cooperation, mutual and provide good quality bearings for clients are the development idea of our company
5.  Quick delivery, shipping goods on time. Save more time and cost for all customers. 
 

FAQ

1. Q: Are you trading company or manufacturer ?
   A: We have our own factory , our type is factory + trade.

2. Q: Could you accept OEM and customize?
    A: Yes, we can customize products according to your sample or drawing.

3. Q: How long is your delivery time? 
    A: If stock, within 7 days to ship or based on your order quantity.

4. Q: Could you supply sample for free? 
    A: Yes, we can offer the sample for free,do you mind to buy a “ticket” for her?

More details, please contact with us. Thanks for your time!

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Contact Angle: 25°
Aligning: Non-Aligning Bearing
Separated: Unseparated
Rows Number: Single
Load Direction: Radial Bearing
Material: Gcr15 Chrome Steel
Samples:
US$ 0/Piece
1 Piece(Min.Order)

|

Customization:
Available

|

Can you describe the factors to consider when selecting slewing rings for specific applications?

When selecting slewing rings for specific applications, several factors need to be considered to ensure optimal performance and reliability. Here’s a detailed description of the factors to consider:

  • Load Requirements: The load capacity of the slewing ring should match the anticipated loads in the application. Consider both the maximum static load (weight of the structure or equipment) and dynamic load (forces during operation). It is crucial to analyze the load distribution, including axial, radial, and moment loads, and select a slewing ring with sufficient load-carrying capacity to handle these loads.
  • Space Limitations: Evaluate the available space for the installation of the slewing ring. Consider the diameter, height, and width of the slewing ring to ensure it fits within the space constraints of the application. It is essential to consider both the external dimensions of the slewing ring and the required clearance for rotation.
  • Rotational Speed: Determine the required rotational speed of the slewing ring. Consider the application’s operating speed and any specific speed limitations. The slewing ring should be selected to accommodate the rotational speed requirements while maintaining smooth and efficient operation.
  • Environmental Conditions: Evaluate the operating environment of the application. Factors such as temperature, humidity, dust, water exposure, chemicals, and corrosive elements should be considered. Choose a slewing ring with appropriate sealing systems, corrosion-resistant materials, and lubrication options to withstand the specific environmental conditions.
  • Accuracy and Positioning: Some applications require precise positioning and rotational accuracy. Determine the required level of accuracy and select a slewing ring that provides the necessary precision. Factors such as gear mechanism, backlash control, and manufacturing tolerances contribute to the accuracy of the slewing ring.
  • Operating Conditions: Consider the overall operating conditions of the application, including factors such as shock and vibration levels, duty cycle, continuous or intermittent operation, and expected service life. The slewing ring should be designed to withstand the anticipated operating conditions and provide reliable performance over the desired lifespan.
  • Integration and Compatibility: Assess the integration requirements of the slewing ring with the rest of the system or equipment. Consider factors such as mounting interfaces, connection points, gear compatibility, and the need for additional components such as drive systems or bearings. Ensure that the selected slewing ring is compatible with the existing or planned system components.
  • Industry Standards and Regulations: Depending on the application, specific industry standards and regulations may apply. Consider any applicable standards, such as ISO specifications or industry-specific guidelines, to ensure compliance and safety in the selection of the slewing ring.

By carefully analyzing these factors and selecting a slewing ring that meets the specific requirements of the application, one can ensure optimal performance, longevity, and reliability of the slewing ring in its intended use.

Can you explain the primary functions and roles of slewing rings in various applications?

Slewing rings play crucial functions and serve different roles in various applications across industries. These specialized bearings enable controlled rotational movement and support heavy loads. Here’s a detailed explanation of the primary functions and roles of slewing rings in different applications:

  • Construction and Cranes: In construction machinery and cranes, slewing rings are used to support the boom or jib, enabling 360-degree rotation. They provide a stable and low-friction interface that allows for efficient material handling and precise positioning of heavy loads. Slewing rings in these applications must withstand high axial, radial, and moment loads.
  • Wind Turbines: Slewing rings play a critical role in wind turbine systems. They support the rotor and allow it to rotate according to wind direction, facilitating efficient power generation. Slewing rings in wind turbines must handle significant loads while ensuring smooth rotation and precise alignment between the rotor and the nacelle.
  • Industrial Equipment: Slewing rings find applications in various industrial equipment, including indexing tables, turntables, robotic arms, and packaging machinery. In these applications, slewing rings enable controlled and precise rotation, allowing for accurate positioning, indexing, and automation. They contribute to the overall efficiency and functionality of industrial machinery.
  • Transportation and Automotive: Slewing rings are utilized in transportation and automotive applications, such as vehicle cranes, aerial platforms, and rotating platforms for heavy-duty vehicles. They provide a stable and reliable connection that enables safe and controlled rotation. In these applications, slewing rings must withstand dynamic loads and harsh operating conditions while ensuring the safety and stability of the equipment.
  • Medical and Rehabilitation Equipment: Slewing rings are important components in medical and rehabilitation equipment, including patient lifts and adjustable beds. They enable smooth and controlled movement, allowing for easy and safe patient transfers and positioning. Slewing rings in these applications must provide precise and quiet operation, ensuring patient comfort and care.
  • Aerospace and Defense: Slewing rings are utilized in aerospace and defense applications, such as radar systems, missile launchers, and satellite antennas. They enable precise and controlled movement in critical systems, contributing to accurate tracking, targeting, and communication. Slewing rings in aerospace and defense applications must meet stringent requirements for reliability, precision, and durability.
  • Marine and Offshore: Slewing rings are employed in marine and offshore equipment, including cranes, davits, and rotating platforms on ships and offshore rigs. They enable heavy lifting and controlled rotation in challenging marine environments. Slewing rings in marine applications must be corrosion-resistant and capable of withstanding harsh weather conditions and high loads.

Overall, slewing rings serve as essential components in a wide range of applications, enabling controlled rotation, supporting heavy loads, and ensuring precise positioning. Their versatility and ability to withstand varying loads and operating conditions make them invaluable in industries such as construction, wind energy, industrial automation, transportation, healthcare, aerospace, and marine sectors.

What advantages do slewing rings offer compared to other rotational components?

Slewing rings offer several advantages compared to other rotational components. Their unique design and features make them a preferred choice in various applications. Here’s a detailed explanation of the advantages that slewing rings offer:

  • Compact Design: Slewing rings have a compact design that allows for efficient use of space. Compared to other rotational components such as gears and bearings, slewing rings provide a compact solution for supporting axial, radial, and moment loads while enabling rotational motion. Their compactness is especially advantageous in applications with limited space or weight constraints.
  • High Load-Carrying Capacity: Slewing rings are designed to handle significant loads. They are capable of supporting both axial and radial loads, as well as moment loads that result from uneven weight distribution or external forces. The robust construction and precise engineering of slewing rings enable them to withstand heavy loads, making them suitable for applications that require high load-carrying capacity.
  • Smooth Rotation: Slewing rings offer smooth rotation, allowing for precise and controlled motion. The rolling elements, whether balls or rollers, are positioned and guided within the raceways of the slewing ring to minimize friction and ensure smooth movement. This smooth rotation contributes to precise positioning and controlled motion, which is essential in applications that require accurate positioning and smooth operation.
  • Integrated Gear Mechanism: Many slewing rings come with an integrated gear mechanism. This eliminates the need for additional gearing components, simplifies the design, and reduces assembly time and costs. The integrated gear mechanism allows for torque transmission and rotational control, enabling precise and controlled motion without the need for external gearing systems.
  • Backlash Control: Slewing rings can be designed with minimal backlash, ensuring precise motion control. Backlash refers to the play or clearance between mating gears or components, which can lead to lost motion or inaccuracies in positioning. By minimizing backlash, slewing rings offer improved accuracy and repeatability in motion control applications.
  • Versatility and Customization: Slewing rings are highly versatile and can be customized to meet specific application requirements. They can be tailored in terms of dimensions, load capacity, mounting interfaces, gear specifications, sealing systems, and materials. This versatility allows slewing rings to be optimized for various industries and applications, ensuring the best performance and compatibility.
  • Durable and Low Maintenance: Slewing rings are designed to be durable and require minimal maintenance. They are constructed with high-quality materials, precision manufacturing, and appropriate sealing systems to withstand harsh operating conditions and contaminants. This durability and low maintenance requirement contribute to the long service life and reliability of slewing rings.

Overall, slewing rings offer advantages such as compact design, high load-carrying capacity, smooth rotation, integrated gear mechanism, backlash control, versatility, customization options, and durability. These advantages make slewing rings a preferred choice in various applications, including construction machinery, material handling equipment, cranes, wind turbines, robotics, and manufacturing systems.

China Custom Slewing Excavator Bearing Ba245 Angular Contact Ball Bearing with Good Quality  China Custom Slewing Excavator Bearing Ba245 Angular Contact Ball Bearing with Good Quality
editor by Dream 2024-05-15