Thin-wall bearings are a special type of bearings, characterized by a ratio of the inner diameter to the outer diameter of the bearing that is less than a specified value (usually less than 1.25), so the bearing wall is relatively thin, hence the name thin-walled bearings. Thin-walled bearings are mainly composed of inner rings, outer rings, rolling elements, and cages. Among them, the inner ring and outer ring are the main parts of the thin-walled bearing, the rolling elements roll between the inner and outer rings, and the cage is used to keep the rolling elements in a stable position to prevent them from colliding with each other. The inner and outer rings of thin-walled bearings are usually made of high-strength materials, such as stainless steel, high-carbon steel, etc., to ensure their load-bearing capacity and stability. The rolling elements are made of spherical or cylindrical high-hardness materials, such as ceramic balls, carbide balls, etc., to improve the rotation accuracy and wear resistance of the bearings. The cages are mostly made of lightweight materials, such as aluminum alloys, polymers, etc., to reduce the overall weight of the bearing.
1. Lightweight and compactness: Since the inner and outer ring walls of thin-walled bearings are relatively thin, the overall weight is light and the structure is compact. This design makes thin-walled bearings particularly useful in applications where space is limited, and can reduce the size and weight of the overall equipment.
2. High precision: Thin-walled bearings generally have high dimensional accuracy and rotational accuracy. This makes them excel in applications that require precise control of rotational motion, such as precision machine tools, instrumentation, and medical equipment.
3. High load capacity: Although thin-walled bearings have thin walls, they can still withstand fairly high loads. This is due to the high-strength materials used and the optimized structural design, which ensures the stability and reliability of the bearings when subjected to heavy loads.
4. Good running smoothness: The rolling element and cage design of thin-walled bearings helps to reduce vibration and noise during operation and provide smooth rotational motion. This is especially important for applications that require low noise and high precision.
5. Easy to install and maintain: The compact design of thin-walled bearings makes them relatively easy to install into equipment. At the same time, due to their relatively simple structure, maintenance and replacement are also relatively convenient.
6. Wide range of applications: Due to the above advantages, thin-walled bearings are widely used in various fields, including aerospace, automotive industry, precision machinery, medical equipment and robotics. These applications have different performance requirements for bearings, but thin-walled bearings can provide reliable solutions.
7. High speed capability: Thin-walled bearings usually also have high speed capabilities and can maintain stable performance at high speeds. This makes them advantageous in applications that require high-speed rotation, such as motors, fans and pumps.
8. Good corrosion resistance: Some thin-walled bearings are made of corrosion-resistant materials such as stainless steel and can work in harsh environmental conditions, such as environments with moisture, corrosive gases or liquids.
Bearing Designations | Boundary Dimensions( mm) | Basic Load Rating(KN) | Limiting Speed(r/min) | Weight | ||||
d | D | B | Cr | Cor | Grease | Oil | (kg) | |
61819 | 95 | 120 | 13 | 19.8 | 21.3 | 4500 | 5600 | 0.27 |
61820 | 100 | 125 | 13 | 20.1 | 22 | 4300 | 5300 | 0.28 |
61821 | 105 | 130 | 13 | 20.3 | 22.7 | 4000 | 5000 | 0.3 |
61822 | 110 | 140 | 16 | 28.1 | 30.7 | 3800 | 5000 | 0.5 |
61824 | 120 | 150 | 16 | 28.9 | 32.9 | 3400 | 4300 | 0.54 |
61826 | 130 | 165 | 18 | 37.9 | 42.9 | 3200 | 4000 | 0.736 |
61828 | 140 | 175 | 18 | 38.2 | 44.3 | 3000 | 3800 | 0.784 |
61830 | 150 | 190 | 20 | 49.1 | 57.1 | 2800 | 3400 | 1.114 |
61832 | 160 | 200 | 20 | 49.6 | 59.1 | 2600 | 3200 | 1.176 |
61834 | 170 | 215 | 22 | 61.5 | 73.3 | 2200 | 3000 | 1.545 |
61836 | 180 | 225 | 22 | 62.3 | 75.9 | 2000 | 2800 | 1.621 |
61838 | 190 | 240 | 24 | 75.1 | 91.6 | 1900 | 2600 | 2.1 |
61840 | 200 | 250 | 24 | 74.2 | 91.2 | 1800 | 2400 | 2.178 |
61844 | 220 | 270 | 24 | 76.4 | 97.8 | 1700 | 2200 | 2.369 |
61848 | 240 | 300 | 28 | 83.5 | 108 | 1500 | 1900 | 4.5 |
61852 | 260 | 320 | 28 | 95 | 128 | 1300 | 1700 | 4.85 |
61856 | 280 | 350 | 33 | 135 | 178 | 1200 | 1600 | 7.4 |
61860 | 300 | 380 | 38 | 162 | 222 | 1100 | 1400 | 11 |
61864 | 320 | 400 | 38 | 168 | 235 | 1000 | 1300 | 11.8 |
61868 | 340 | 420 | 38 | 174 | 265 | 1000 | 1300 | 12 |
61872 | 360 | 440 | 38 | 182 | 285 | 1100 | 1400 | 11.8 |
61876 | 380 | 480 | 46 | 235 | 348 | 800 | 1000 | 20.5 |
61880 | 400 | 500 | 46 | 247 | 405 | 950 | 1200 | 21.7 |
61884 | 420 | 520 | 46 | 251 | 425 | 950 | 1180 | 22 |
61888 | 440 | 540 | 46 | 251 | 425 | 950 | 1180 | 23.6 |
61892 | 460 | 580 | 56 | 322 | 538 | 860 | 1000 | 33.5 |
61896 | 480 | 600 | 56 | 315 | 610 | 870 | 1100 | 36 |
Thin-walled bearings are widely used in various fields due to their small size, light weight, compact structure and stable performance:
1. Precision machinery: such as precision machine tools, instruments and meters. The high precision and stability of thin-walled bearings can meet the strict requirements of these equipment for rotation accuracy.
2. Aerospace: Thin-walled bearings are also widely used in the aerospace field, such as rotating parts of aircraft, rockets and other equipment. Its lightweight and high efficiency help to reduce the weight of equipment and improve performance.
3. Automotive industry: In the automotive industry, thin-walled bearings are used in key parts such as engines, transmissions and suspension systems to improve the performance and reliability of automobiles.
4. Medical equipment: Due to the miniaturization and precision manufacturing characteristics of thin-walled bearings, they are widely used in various medical equipment, such as surgical instruments, diagnostic instruments and treatment equipment.
5. Robotics: With the continuous development of robotics, thin-walled bearings have been widely used in robot joints and rotating mechanisms to improve the robot's motion performance and stability.
Product Packaging:
The thin wall bearings are packaged in a sturdy cardboard box to protect them during shipping and storage. Each bearing is individually wrapped in a plastic bag to prevent any damage or contamination during transportation.
Shipping:
Our thin wall bearings are shipped via a reputable courier service to ensure fast and reliable delivery to our customers. We take great care in packaging and labeling each shipment to ensure that it arrives in good condition and is easy to identify.
Q:What's your after-sales service and warranty?
A: We promise to bear the following responsibilities when defective products were found:
1. Replacements would be sent with goods of your next order;
2. Refund for defective products if customers require.
Q:Do you accept ODM&OEM orders?
A: Yes, we provide ODM&OEM services to worldwide customers, we also customize OEM box and packing as your requirements.
Q:What's the MOQ?
A: MOQ is 10pcs for standardized products; for customized products, MOQ should be negotiated in advance. There is no MOQ for sample orders.
Q:How long is the lead time?
A: The lead time for sample orders is 3-5 days, for bulk orders is 5-15 days.
Q:Do you offer free samples?
A: Yes we offer free samples to distributors and wholesalers, however customers should bear freight. We DO NOT offer free samples to end users.
Q:How to place order?
A: 1. Email us the model, brand and quantity,shipping way of bearings and we will quote our best price for you;
2. Proforma Invoice made and sent to you as the price agreed by both parts;
3. Deposit Payment after confirming the PI and we arrange production;
4. Balance paid before shipment or after copy of Bill of Loading.