We are Ningbo Kent Bearing, one of the leading high-quality bearing manufacturer and supplier, established in 2003. Specializing in the production of medium and high-end silent bearings
Many bearing manufacturers still follow the standard-parts mindset of “you provide the model number, we arrange shipment”. They only supply bearings that meet national standard dimensions and take no responsibility for application condition matching.
But for variable-frequency, high-speed, enclosed and shock-load motors, working condition variables are extremely complex. Standard bearings alone cannot withstand such conditions. The following 8 items are inherent responsibilities of professional bearing manufacturers:
01
No load and speed simulation is performed. Standard clearance is selected directly according to catalogs, with clearance reduction caused by motor temperature rise ignored, resulting in overheating and seizure during operation.
02
They know the motor is driven by a frequency converter but fail to warn of shaft current risks or offer insulated bearing solutions, which leads to washboard-like electrical erosion marks on raceways.
03
They are aware that the motor is driven by a frequency converter, yet do not alert to shaft current risks or supply insulated bearing solutions, causing washboard pattern electrical erosion on bearing raceways.
04
They adopt a one-size-fits-all grease filling approach, only using general-purpose grease without distinguishing continuous high-temperature, low-temperature start-stop and maintenance-free working scenarios, which leads to premature oil film failure.
05
They use generic sealing structures without customization based on motor internal negative pressure, moisture and dust environments, resulting in grease leakage and contaminant ingress.
06
For alternating shock loads, they still adopt conventional processing for GCr15 steel, with no life margin design on materials and heat treatment.
07
They do not calculate the interference compression of shaft and housing bore, failing to account for clearance reduction after press fitting, which causes continuous temperature rise during operation.
08
They only send replacement bearings after failure, without disassembly, failure analysis, or recommendations for grease, structure and corrective actions, so the same issue recurs repeatedly.
We get involved at the drawing stage and align simulation, insulation, cage, grease, sealing and clearance fully with your motor working conditions. The bearing is merely the carrier to implement the solution. We help you identify assembly defects and pre-empt pitfalls related to working condition adaptation.
If you are troubled by frequent bearing burnout, welcome to contact the Kenda technical service team at +86-19957451956. The engineering team of Kenda Bearings can support selection calculation, life verification and small-batch custom validation.
The economy environment is harsh in 2026. Colleagues across all industries are saying that money is harder to earn. In the past, diligent work brought substantial gains, and casual efforts still yielded decent returns. But now, even down-to-earth hard work barely gets what we deserve. What should we do?
Two months ago, our General Manager Mr. Hua put forward a new resolution at a meeting, which stirred unrest in the workshop. New production equipment was purchased, and a new assembly production line was launched. Operation procedures and specification guidelines were printed into documents and distributed to every employee.Mr. Hua’s view is: our mature products enjoy stable output and fixed customers, yet leave limited room for growth. Given the industry downturn, we shall launch new production lines and develop new products. New bearing products command higher prices with new techniques and better profit margins, helping us attract new clients. Only with fresh blood injected into the company can we gain an upper hand in industry competition now and in the future. This way, even if our long-term customers stop placing repeat orders someday, our production and sales can still operate smoothly.
Let us witness every renewal, transformation and progress of Ningbo Kent Bearings Co.,Ltd.Wish our bearings sell well at domestic and abroad.
Any question pls feel free to contact me:
Web: www.bgbearing.com
Email:info@bgbearing.com
Mobile/whatsapp/wechat: +86-19957426729
Commercial fitness equipment operates continuously under heavy load for long periods, so the performance requirements for bearings, the core transmission components, are much higher than those for household products.
As a professional supplier of 6203 motor bearings for fitness equipment, Ningbo Kent Bearing has been deeply engaged in the fitness equipment segment for many years. We have developed exclusive customized solutions to meet the demand of continuous heavy-load operation in commercial scenarios.
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Custom Clearance for Continuous Operation
To meet the working condition requirements of customers' commercial treadmills, Ningbo Kent Bearing has developed custom 6203 2RS bearings with dedicated C3 internal clearance. The C3 clearance design better copes with frequent impacts and temperature rise generated during continuous operation, adapting to continuous running conditions and preventing bearing seizure and failure caused by thermal expansion and contraction.
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High-Temperature Grease for Improved Thermal Stability
To accommodate temperature rise under continuous operation, Kent Bearing equips this bearing with special high-temperature grease. It maintains lubrication performance at elevated temperatures and prevents premature bearing damage resulting from lubrication failure.
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Fully Automatic Production for Stable Quality
Ningbo Kent Bearing relies on more than 20 fully automatic production lines and manufactures in strict accordance with the ISO9001 quality management system. Every bearing passes noise testing to ensure noise performance meets the requirements for gym applications. In addition, the inner and outer rings of bearings are super-finished to reduce raceway surface roughness and improve the fatigue resistance of bearings, extending service life from the process perspective.
For niche applications such as motor bearings for fitness equipment, standard off-the-shelf bearings often fail to meet special working condition requirements. Only customization based on application characteristics can effectively solve customers’ pain points. With over 20 years of focus on motor bearings, Ningbo Kent Bearing can adjust parameters including internal clearance, grease and dimensions according to customers’ different working conditions, delivering system-level solutions.
Theoretical selection is only the first step. Tolerance fits and lubrication schemes under actual working conditions are often more complex. Kent Bearing has supplied more than 200 million sets of motor bearing solutions to over 500 motor manufacturers worldwide. If your motors are troubled by bearing issues, or you want to prevent bearing problems in advance, please contact the Kent technical service team at 86-19957451956. We will help you quickly locate the root cause of problems, easily resolve motor failures, reduce after-sales losses and retain your key customers!