- Advantages
- Small frictional resistance: The rolling elements and the raceways mainly have rolling friction. Compared with sliding bearings, its friction coefficient is significantly reduced, which can effectively reduce energy consumption and improve mechanical efficiency.
- High limiting speed: Due to low friction and less heat generation, it can maintain good stability and reliability under high-speed rotation conditions, making it suitable for equipment that requires high rotation speeds.
- Simple structure: Composed of basic components such as the inner ring, outer ring, rolling elements, and cage, it has a relatively simple structure, a mature manufacturing process, low cost, and is easy for mass production and application.
- Wide application range: It can bear radial loads and a certain amount of axial loads, and can be used in various mechanical equipment and working environments, with strong adaptability to loads and rotation speeds.
-
| Bearing Model |
Inner Diameter (mm) |
Outer Diameter (mm) |
Thickness (mm) |
Weight (kg) |
| 6315M |
75 |
160 |
37 |
2.85 |
| 6316Z |
80 |
170 |
39 |
3.45 |
| 63172RS |
360 |
480 |
74 |
38.0 |
| 6318N |
90 |
190 |
43 |
4.80 |
| 6318Z |
90 |
190 |
43 |
4.80 |
The sealing methods of deep groove ball bearings mainly include the following types:
Non-contact Sealing
- Stamped Steel Seal Cover (Iron Seal): The dust cover is made of low-carbon steel or stainless steel. Generally, "Z" represents a single-sided dust cover, and "2Z" represents a double-sided dust cover. It has no contact with the inner ring, resulting in no friction and a relatively high rotational speed. However, due to the existence of gaps, the grease retention rate and dust-proof effect are average, and it cannot prevent liquid foreign matter from penetrating.
- Non-contact Rubber Seal Cover: Generally, "RZ" represents single-sided and "2RZ" represents double-sided. Made of materials such as nitrile rubber, it has no contact with the rotating parts, features low friction torque, and has a relatively high rotational speed. Its grease retention rate and dust-proof effect are better than those of the stamped steel seal cover.
-
Contact Sealing
- Contact Rubber Seal Cover: Usually, "RSL" represents the light-contact type, and "RSH" or "RS1" represents the contact type. The sealing lip is in contact with the inner ring, which can effectively prevent dust, moisture and impurities from entering the bearing and prevent the loss of lubricants. However, due to the friction, the friction torque is relatively large and the rotational speed is slightly lower than that of the non-contact type.
- Labyrinth Contact Seal Cover: The gap between the rotating part and the fixed part is made into a labyrinth shape, and lubricating oil or grease is filled in the gap. It is divided into two types: radial and axial. The radial clearance of the radial labyrinth is not more than 0.1 - 0.2mm, and the axial clearance of the axial labyrinth is 1.5 - 2mm. It can maintain a good sealing effect in relatively dirty and humid environments.
- Felt Ring Seal: A trapezoidal groove is opened on the bearing cover, and the felt is made into a ring or strip according to the standard and placed in the trapezoidal groove to make close contact with the shaft. It is mainly used in the case of grease lubrication. It has a simple structure but a large friction coefficient and is only applicable to places where the sliding speed is less than 4 - 5m/s and the working temperature is not higher than 90°C.
-
Open Sealing
Open deep groove ball bearings have no sealing structure and are suitable for high-speed and ultra-high-speed applications. They have high requirements for environmental cleanliness and are usually used when there are other external sealing measures or when internal sealing is not required.
: The maximum load the bearing can handle while rotating at high speeds.
- Static Load Rating (C0): The maximum load the bearing can handle when stationary or at very low speeds.
- Fatigue Limit: The load beyond which the bearing may experience fatigue failure after a certain number of rotations.
- Weight: The approximate weight of each bearing.
These are typical parameters for standard 6200 series deep groove ball bearings. Depending on your manufacturer, materials, and specific
requirements (e.g., seals, lubrication), some of the values might vary slightly.
Packaging & Shipping
Packaging Options:
We take great care in packaging our products to ensure safe delivery to any destination worldwide. Depending on your needs, we offer various packaging solutions:
- Cartons: Standard, cost-effective packaging for smaller orders, ensuring safe transport and easy handling.
- Wooden Boxes: For larger or more fragile items, we provide sturdy wooden boxes to offer extra protection during transit.
- Pallets: For bulk shipments, we use pallets to make transportation more efficient and secure, especially for sea freight or large orders.
Shipping & Delivery:
We provide reliable shipping options to ensure your products arrive safely and on time, no matter where you are located. Our logistics network includes:
- International Couriers: We work with leading courier services like DHL, FedEx, UPS, etc., for fast and secure delivery to most countries. Delivery times range from 3-7 days depending on the destination.
- Air Freight: For urgent deliveries, we offer air freight services, ensuring your products arrive quickly and in perfect condition.
- Sea Freight: For larger or bulk orders, we offer sea freight at competitive rates, ideal for cost-effective long-distance shipping.
Customs & Duties:
We handle all necessary customs paperwork and ensure that your products are delivered smoothly. For international shipments, we provide assistance with import duties and taxes to avoid any surprises.
Packaging Protection:
In addition to sturdy packaging, we use foam padding, bubble wrap, and customized inserts to prevent any damage during shipping. Our team carefully inspects every package before it is dispatched to ensure it meets our quality standards.
Why Choose Us?
- Safe & Secure Packaging: Your products will arrive in excellent condition.
- Fast & Reliable Shipping: We offer a range of shipping options tailored to your needs.
- Worldwide Coverage: We ship globally, ensuring your products reach you no matter where you are.
Contact Us for Your Custom Bearing Solutions!
If you're looking for high-precision, low-noise, and durable deep groove ball bearings, or have custom requirements for special sizes or specific working conditions, feel free to contact us!
Judong Bearing - Providing Higher Performance Bearing Solutions for Global Customers!
Audited Supplier 
){kind=link}