UMZ Bearing ,Cylindrical rollers and raceways are linear contact bearings. Load capacity, mainly bear radial load. The friction between the rolling element and the rib of the ring is small, which is suitable for high-speed rotation. According to whether the ring has CZPT or not, it can be divided into single row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double row cylindrical roller bearings such as NNU and NN. The bearing is a structure in which the inner ring and the outer ring can be separated.
Cylindrical roller bearings without CZPT on the inner or outer ring, the inner and outer rings can move relative to the axial direction, so they can be used as free end bearings. Cylindrical roller bearings with double CZPT on 1 side of the inner ring and outer ring and a single rib on the other side of the ring can withstand a certain degree of axial load in 1 direction. Generally, a steel stamping cage is used, or a copper alloy turning solid cage is used. However, there are also part of the use of polyamide forming cage.
|Hot Sale Gearbox Bearing 524625 539090M 512533 Cylindrical Roller Bearing With HIgh Quality
|524625 539090M 512533
|Cylindrical Roller Bearing
|Chrome steel GCR-15
|Steel Cage and Iron Cage,Brass Cage
UMZ Bearing-ZheJiang HangZhou Precision Bearing Co., Ltd. has the most advanced production equipment and perfect testing instruments. Tapered Roller Bearing, Auto wheel Bearing, Deep Groove Ball Bearing,Pillow Block Bearing,Cylindrical Roller Bearing are our main product which is strictly followed with the ISO9001 Quality Management System Standard and IATF16949 Quality Standard. The company has registered trademark “UMZ”. The products have been sold to all over the world and have replaced some of the imported products. What’s more, The products have been exported to more than 20 countries and the areas, such as the USA,Italy,Mexico,Russia,Brazil,Spain and Middle-east,etc., which is Deeply Prided by new and old customers.
The company has complete detection means, measure and improve the means of detection means,online detection and performance of finished bearings. Have life test machine, grease leakage temperature rise test, cleanliness measuring device, roundness instrument, curvature tester, roughness tester, liquid gap tester, vibration instrument and various bearing special inspection instrument the key of high precision instruments such as CZPT instrument, roundness instrument etc. are from Britain, Japan and other countries to introduce merit, not only the formation of the strict product quality inspection system, and fully capable of independent research and Analysis on the bearing performance indexes.
Q:What’s your after-sales service and warranty?
A: We promise to bear the following responsibilities when defective products were found:
1.12 months warranty from the first day of receiving goods;
2. Replacements would be sent with goods of your next order;
3. 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.
|The Number of Rows:
|Small and Medium-Sized (60-115mm)
|Chrome Steel Gcr15
|Axial and Radial Bearing
What are the potential challenges or limitations of using cylindrical roller bearings in specific industries?
While cylindrical roller bearings offer numerous advantages, there are also certain challenges and limitations associated with their use in specific industries. Let’s explore some of these potential challenges:
- High-Speed Applications:
In industries that require high-speed rotating machinery, such as machine tools or centrifugal compressors, the limitations of cylindrical roller bearings become more pronounced. At high speeds, factors like centrifugal forces, increased operating temperatures, and the potential for roller skidding can impact the bearing’s performance. Special design considerations, such as optimized cage designs, precision manufacturing, and proper lubrication, are necessary to overcome these challenges and ensure reliable operation at high speeds.
- High-Temperature Environments:
In industries like steel production, glass manufacturing, or certain types of furnaces, the operating temperatures can exceed the limits of standard cylindrical roller bearings. High temperatures can cause dimensional changes, affect the lubricant properties, and lead to accelerated wear or premature failure of the bearing components. To address this limitation, specialized high-temperature bearings with heat-resistant materials, advanced lubrication systems, and appropriate sealing mechanisms are required.
- Heavy Load and Shock Loads:
Industries involving heavy machinery, such as construction, mining, or material handling, often subject cylindrical roller bearings to extremely heavy loads or sudden shock loads. These conditions can lead to increased stress, fatigue, or even permanent deformation of the bearing components. To overcome these challenges, bearings with higher load-carrying capacities, robust designs, and enhanced fatigue resistance are necessary. Additionally, proper maintenance practices and regular monitoring are crucial to detect any signs of excessive load or potential failure.
- Contamination and Harsh Environments:
In industries characterized by harsh operating environments, such as agriculture, forestry, or automotive manufacturing, cylindrical roller bearings can face challenges related to contamination, moisture, or exposure to abrasive particles. Contaminants can accelerate wear, cause damage to the bearing surfaces, or impair the lubrication effectiveness. Sealing solutions, effective maintenance practices, and the selection of appropriate bearing materials are essential to mitigate these challenges and ensure reliable performance in such environments.
- Space Limitations:
In certain industries like aerospace or robotics, where space is limited and compact designs are required, the size and dimensions of cylindrical roller bearings can pose challenges. Finding suitable bearing sizes that meet the specific space constraints while still fulfilling the load and performance requirements can be a limitation. In such cases, alternative bearing types or customized bearing solutions may be explored to overcome the space limitations.
It’s important to note that while there may be challenges or limitations associated with using cylindrical roller bearings in specific industries, advancements in bearing technology, materials, and design continue to address and overcome many of these limitations. Consulting with bearing manufacturers, considering application-specific requirements, and implementing appropriate maintenance practices can help mitigate these challenges and ensure the successful use of cylindrical roller bearings in a wide range of industries.
editor by CX 2023-11-06