木工机械解决方案

木工轴承工作现状分析

高转速

砂光机涨紧辊轴承在抛光时，转速可达 2800r/min；

要求长寿命

要求轴承长期无故障运行；

间歇式交变负荷

在抛光木料时，由于木料的不平整性，轴承需承受间歇式的交变负荷。

环境高污染

在木料加工过程中，会产生大量的粉尘和木屑，轴承工作环境非常恶劣

福山轴承对木工机械的解决方案

基于木工机械现场经验和调查反馈，福山公司有一系列针对性的解决方案。并研发出木 工机械专用轴承。

轴承材料

采用国内高纯度轴承钢，提高轴承的稳定性，使轴承寿命可延长 30%以上；

适配的润滑脂

采用高品质的电机油脂及润滑技术，使轴承寿命和可靠性得到有效的提高；

改善的密封结构

针对木工机械使用工况，研发出木工轴承专用密封圈，具有轻扭矩，高防尘，不松动的 特性，并获得专利版权；和同规格的轴承在相同的条件下做防尘试验，其防尘性能提高了 45%。

轴承沟道的优化设计

轴承沟道参数的优化调整及特殊的加工工艺，减少沟道的摩擦系数，改善了润滑油在工 作过程中的合理分布，使其在高转速下仍然可以保持有效的润滑和较低的噪音水平

Woodworking machinery solutions

Analysis on the working status of woodworking bearings

High speed

When the bearing of the tensioner roller of the sander is polished, the speed can reach 2800r/min;

Long life required

Long-term trouble-free operation of bearings is required;

Intermittent alternating load

When polishing wood, the bearing needs to withstand intermittent alternating loads due to the unevenness of the wood.

High environmental pollution

In the wood processing process, a large amount of dust and wood chips will be generated, and the bearing working environment is very harsh

Fukuyama Bearing's solutions for woodworking machinery

Based on the woodworking machinery field experience and survey feedback, Fukuyama has a series of targeted solutions. And developed special bearings for woodworking machinery.

Bearing material

Use domestic high-purity bearing steel to improve the stability of the bearing and extend the life of the bearing by more than 30%;

Suitable grease

Adopt high-quality motor grease and lubrication technology to effectively improve bearing life and reliability;

Improved sealing structure

According to the working conditions of woodworking machinery, the special sealing ring for woodworking bearings has been developed, which has the characteristics of light torque, high dustproof and no loosening, and has obtained the patent copyright; it is dustproof under the same conditions as the bearings of the same specification. Dust performance increased by 45%.

Optimal design of bearing raceway

The optimized adjustment of bearing channel parameters and special processing technology reduce the friction coefficient of the channel and improve the reasonable distribution of lubricating oil during the working process, so that it can still maintain effective lubrication and low noise level at high speeds.

传动系统解决方案

传动系统轴承现状分析

  • 要求长期平稳的运行

    在物料传送过程中，非计划停机会限制物料输送效率，甚至会影响产品交期或延误客户 行程，这就要求轴承具有高可靠性

  • 低噪音

    工人在靠近传送系统的地方工作时，噪音会通过听觉器官作用于大脑中枢神经系统，对 人的身心健康造成危害，需有效的控制噪音的危害，降低噪音污染；轴承作为传动系统的关 键部件，需要其长期处于低噪音平稳运转

  • 运行环境恶劣

    在传动过程中，无论是传送肮脏、磨蚀性的煤炭、金属和水泥，还是干燥、灰尘较多的 谷物，污染物会经常破坏轴承的密封，导致轴承过早失效，影响整个传动系统的运转

  • 传动过程中要求低污染

    传动过程中，要求轴承具有良好的密封性能，以免润滑脂外漏污染产品；同时需能有效 的防止杂物侵入轴承内部

  • 特殊使用场合要求不同的使用性能

    例如热处理设备，在物料的传送过程中局部位置高温，轴承必须能在其环境下安全可靠 运转，具有良好的耐高温性能； 在港口的物料传送过程中，由于港口高湿度海盐的腐蚀性能，要求轴承具有良好的耐腐 蚀性能。

传动系统轴承现状分析FSB

通过在传动系统行业的经验和广泛的知识为后盾，FSB 针对您所面临的问题，结合我们 的产品提供全方位的解决方案。

轴承结构的优化设计及高水准的加工控制

轴承的内部结构进行了优化设计及严格的加工精度控制；轴承座选择优质的材料，通 过高水平的铸造工艺及专用加工设备，使轴承上不会作用异常的负荷，从而提高轴承的整体 安全性能，保证轴承长期低噪音、平稳运转。

独特的密封结构

针对不同使用环境，我们具有不同的密封结构，能有效的避免杂物侵入轴承内部，使整 条传动系统长期平稳运转；同时可以有效的防止润滑脂外漏污染产品。

良好的耐高温性能

超过普通轴承使用温度范围的工况，我们选用合理的润滑脂、适宜的密封材料及优化的 轴承内部结构，使轴承在其温度范围内，仍能处于最佳状态运行； 针对低转速、高温的使用环境，我们开发了浮动端专用轴承，以避免轴受热伸长使轴承 承受异常载荷。

良好的耐 腐蚀性能

针对潮湿、弱酸碱性、频繁冲洗等使用环境，轴承表面经过特殊处理，使其具有出色的 耐腐蚀性。

多样的产品结构

FSB 拥有各种形状及规格的带座轴承，满足您最佳的设计目的，如有特殊设计需求， 请与 FSB 联系，我们能根据您的需求，快速设计并交付给您满意的产品。

Transmission system solutions

Analysis of current situation of transmission system bearings

  • Long-term stable operation is required

    In the process of material transfer, unplanned shutdowns will limit the efficiency of material transportation, even affect product delivery or delay customer journeys, which requires bearings with high reliability

  • low noise

    When workers work close to the transmission system, noise will act on the central nervous system of the brain through the auditory organs, causing harm to human physical and mental health. It is necessary to effectively control noise hazards and reduce noise pollution; bearings are a key component of the transmission system. It needs to be in low noise and stable operation for a long time

  • Bad operating environment

    In the transmission process, whether it is transporting dirty, abrasive coal, metal and cement, or dry and dusty grains, pollutants will often damage the seal of the bearing, leading to premature failure of the bearing and affecting the operation of the entire transmission system

  • Low pollution is required during transmission

    During the transmission process, the bearing is required to have good sealing performance to prevent the leakage of grease from contaminating the product; at the same time, it is necessary to effectively prevent debris from intruding into the bearing

  • Special use occasions require different performance

    For example, heat treatment equipment, in the process of material transfer, the local location of high temperature, the bearing must be able to operate safely and reliably in its environment, and have good high temperature resistance; in the port material transfer process, due to the corrosion performance of the port’s high humidity sea salt, it is required The bearing has good corrosion resistance.

Analysis of the current situation of transmission system bearings FSB

Backed by experience and extensive knowledge in the transmission system industry, FSB provides a full range of solutions for the problems you face, combined with our products.

Optimized design of bearing structure and high-level processing control

The internal structure of the bearing has been optimized design and strict processing accuracy control; high-quality materials are selected for the bearing seat, through high-level casting technology and special processing equipment, so that no abnormal load will be applied to the bearing, thereby improving the overall safety performance of the bearing , To ensure long-term low noise and smooth operation of the bearing.

Unique sealing structure

For different use environments, we have different sealing structures, which can effectively prevent debris from intruding into the bearing and make the entire transmission system run smoothly for a long time; at the same time, it can effectively prevent the leakage of grease from polluting the product.

Good high temperature resistance

For working conditions exceeding the operating temperature range of ordinary bearings, we select reasonable grease, suitable sealing materials and optimized internal structure of the bearing, so that the bearing can still operate in the best condition within its temperature range; for low-speed, high-temperature In the operating environment, we have developed a special bearing for the floating end to prevent the bearing from being subjected to abnormal loads due to thermal elongation of the shaft.

Good corrosion resistance

针对潮湿、弱酸碱性、频繁冲洗等使用环境，轴承表面经过特殊处理，使其具有出色的 耐腐蚀性。

多样的产品结构

FSB 拥有各种形状及规格的带座轴承，满足您最佳的设计目的，如有特殊设计需求， 请与 FSB 联系，我们能根据您的需求，快速设计并交付给您满意的产品。

包装机械解决方案

包装机械轴承现状分析

包装机械在包装工业中有着举足轻重的地位和作用，而轴承作为包装机械的重要零部件，其适配的选择，对整个行业影响深远。

  • 要求结构紧凑

    包装机械结构的局限性，要求轴承在有限 的安装空间内能够承受足够的负荷。

  • 要求长期平稳的运行

    包装过程中，非计划停工会限制生产效 率，甚至会影响产品交期，这就要求轴承性能 安全可靠。

  • 包装环境要求低污染

    运行过程中，要求轴承具有良好的密封性 能，以免润滑脂外漏，污染产品和包装；同时 需能有效的防止杂物侵入轴承内部。

  • 较宽的温度适用性

    例如充填机械、灌装机械、封口机械等，这些包装设备局部位置的工作温度时刻变化， 轴承必须能在其环境下运行安全可靠。

  • 要求具有耐腐蚀性

    在潮湿、盐雾、弱碱性或弱酸性等具有腐蚀性的特殊包装作业环境中，要求轴承具有良 好的耐腐蚀性

  • 特殊场合的高维护成本

    在一些特殊场合的包装过程中，需定期补充润滑脂，这样不仅会导致维护成本增加，而 且存在润滑脂泄露、包装污染的风险

FSB轴承包装机械的解决方案

凭借在其行业的技术探索以及几十年在设备制造商和终端用户领域的技术经验，我们为您提供综合性解决方案，减少由于轴承失效带来的经济损失。

多样的产品结构

FSB 拥有各种形状及规格的带座轴承，满足您最佳的设计目的，如有特殊设计需求， 请与 FSB 联系，我们能根据您的需求，快速设计并交付给您满意的产品。

长期平稳的运转

轴承的内部结构进行了优化设计及严格的加工精度控制；轴承座选择优质的材料，通 过高水平的铸造工艺及专用加工设备，使轴承上不会作用异常的负荷，从而提高轴承的整体 安全性能，保证轴承长期平稳运转。

独特的密封性

针对不同使用环境，我们具有不同的密封结构，在满足使用工况的情况下，更能有效的 防止润滑脂外漏污染产品和包装，同时避免杂物侵入轴承内部。

温度适用范围宽

选用合理的润滑脂和优化的轴承内部结构，使轴承在较宽的温度变化范围内，仍能处于 最佳状态；从而延长轴承使用寿命，降低维保成本。

良好的耐腐蚀性能

针对潮湿、弱酸碱性、频繁冲洗等使用环境，轴承表面经过特殊处理，使其具有出色的 耐腐蚀性。

免润滑轴承

针对特殊场合的使用，我们设计的免润滑轴承，消除了频繁计划补充润滑的需求和润滑 脂泄露的可能性，有助于生产商符合卫生要求并获得 100%操作可靠性；同时提高维保人员 的安全性。

Packaging machinery solutions

Analysis of the current situation of packaging machinery bearings

Packaging machinery has a pivotal position and role in the packaging industry, and bearings are important parts of packaging machinery, and the choice of their adaptation has a profound impact on the entire industry.

  • Require compact structure

    The limitation of the packaging machinery structure requires the bearing to bear sufficient load in the limited installation space.

  • Long-term stable operation is required

    During the packaging process, unplanned suspension of labor will limit production efficiency and even affect product delivery, which requires safe and reliable bearing performance.

  • The packaging environment requires low pollution

    During operation, the bearing is required to have good sealing performance to avoid grease leakage and contaminate products and packaging; at the same time, it is necessary to effectively prevent debris from entering the bearing.

  • Wide temperature applicability

    For example, filling machinery, filling machinery, sealing machinery, etc., the working temperature of these packaging equipment changes all the time, and the bearings must be able to operate safely and reliably in their environment.

  • Corrosion resistance required

    In the special corrosive packaging environment such as humidity, salt spray, weak alkaline or weak acid, the bearing is required to have good corrosion resistance

  • High maintenance costs for special occasions

    In the packaging process of some special occasions, it is necessary to replenish grease regularly, which will not only increase the maintenance cost, but also have the risk of grease leakage and packaging contamination

FSB bearing packaging machinery solutions

With technical exploration in its industry and decades of technical experience in the field of equipment manufacturers and end users, we provide you with comprehensive solutions to reduce the economic losses caused by bearing failure.

Diverse product structure

FSB has seated bearings in various shapes and specifications to meet your best design goals. If you have special design requirements, please contact FSB. We can quickly design and deliver satisfactory products to you according to your needs.

Long-term smooth operation

The internal structure of the bearing has been optimized design and strict processing accuracy control; high-quality materials are selected for the bearing seat, through high-level casting technology and special processing equipment, so that no abnormal load will be applied to the bearing, thereby improving the overall safety performance of the bearing , To ensure long-term stable operation of the bearing.

Unique sealing

For different use environments, we have different sealing structures. Under the condition of meeting the use conditions, we can effectively prevent the leakage of grease from contaminating products and packaging, and at the same time prevent debris from intruding into the bearing.

Wide temperature range

Reasonable lubricating grease and optimized internal structure of the bearing are selected so that the bearing can still be in the best condition within a wide range of temperature changes; thereby extending the service life of the bearing and reducing maintenance costs.

Good corrosion resistance

For damp, weak acid-base, frequent washing and other use environments, the bearing surface has been specially treated to make it have excellent corrosion resistance.

Lubrication-free bearings

For special occasions, the lubrication-free bearings designed by us eliminate the need for frequent scheduled relubrication and the possibility of grease leakage, which helps manufacturers meet hygiene requirements and obtain 100% operational reliability; at the same time, it improves maintenance personnel Security.

商用风机解决方案

风机轴承现状分析

商用风机应用广泛,但是运行条件恶劣

  • 高转速

    轴承要求更高转速,可达 3600 转每分钟。

  • 要求低噪音、长寿命

    噪音影响人体健康,导致客户投诉,要求轴承长期处于低 噪音下运行。

  • 连续运转

    风机经常处于连续运转的工况,因此要求外球 面轴承时 刻处于最佳旋转状态。

  • 可靠性要求高

    轴承作为风机的核心零部件安装在建筑物的各 个位置, 维修费用高。

  • 运行环境灰尘多

    风机运行环境灰尘多；裸露轴承易受灰尘侵袭。

  • 位置局限性，难以再润滑

    要求选用正确的润滑脂和适量的润滑脂预填充量。

  • 轴承低温升

    由于长期运转，要求低温升，否则导致轴承过早失效。

福山轴承对商用风机的解决方案

基于商用风机现场经验和调查反馈,福山公司有一系列针对性的解决方案。并研发出F系列风机专用轴承。

福山轴承对商用风机的解决方案01
福山轴承对商用风机的解决方案02
福山轴承对商用风机的解决方案03

内部结构优化

针对高转速的工况,F系列轴承的内部结构进行了优化调整,适应在高转速的情况下仍然可以保持长寿命,更低的噪音水平。

改善的密封结构

针对风机使用工况,研发出风机轴承专用密封圈,具有轻扭矩,高防尘,不易松动的特性, 并获得专利版权。

最优化的润滑

高品质的电机油脂,优化的润滑通道,保证轴承长期在更低的噪音水平下连续运转;减少停机时间,降低维护成本。

公差严格控制

F 系列轴承芯与轴承座稳定的的公差配合保证了在偏心的工况下轴承平稳运转。轴承座精准的材质控制保证了在振动工况下,轴承仍然能保持优异的运转性能。

紧固形式

带顶丝及偏心套轴承采用专用防松顶丝。

福山轴承商用风机轴承的方案价值

凭借与客户的密切合作,FSB设计的F系列风机轴承帮您呈现非凡的价值

福山轴承商用风机轴承的方案价值

福山轴承商用风机轴承的方案价值

1:F通过针对风机的应用进行深入研究与实验,使风机和轴承完美结合,直视时间和工作环境的严峻考验。

2:F系列轴承拥有比标准轴承更长的寿命,提升了风机整体性价比,使风机更具竞争优势。

3:F系列轴承的高可靠性减少了维护次数,减少停机时间降低维护费用从而提高风机工作绩效。

4:F系列的轴承连续运转下可以数倍于普通轴承的噪音寿命,避免了客户投诉,提高了客户满意度。

Commercial fan solutions

Analysis of current situation of fan bearings

Commercial fans are widely used, but operating conditions are harsh

  • High speed

    Bearings require higher speeds, up to 3,600 revolutions per minute.

  • Low noise and long life are required

    Noise affects human health, leading to customer complaints, requiring bearings to operate under low noise for a long time.

  • Continuous operation

    Fans are often in continuous operation conditions, so the outer spherical bearing is required to be in the best rotation state at all times.

  • High reliability requirements

    Bearings, as the core components of the wind turbine, are installed in various locations of the building, and the maintenance costs are high.

  • Dusty operating environment

    The operating environment of the fan is dusty; bare bearings are easily attacked by dust.

  • Location limitations, difficult to relubricate

    It is required to select the correct grease and the proper amount of pre-filled grease.

  • Bearing low temperature rise

    Due to long-term operation, low temperature rise is required, otherwise the bearing will fail prematurely.

Fushan Bearing's solution for commercial fans

Based on commercial wind turbine field experience and survey feedback, Fukuyama has a series of targeted solutions. And developed the F series fan special bearings.

Fushan Bearing's Solution for Commercial Fan 01
Fushan Bearing's Solution for Commercial Fan 02
Fushan Bearing's Solution for Commercial Fan 03

Internal structure optimization

For high-speed working conditions, the internal structure of F series bearings has been optimized and adjusted to adapt to high-speed conditions and can still maintain long life and lower noise levels.

Improved sealing structure

According to the working conditions of the fan, the special sealing ring for the fan bearing has been developed, which has the characteristics of light torque, high dust resistance, and not easy to loosen, and has obtained the patent copyright.

Optimal lubrication

High-quality motor grease and optimized lubrication channels ensure continuous operation of bearings at lower noise levels for a long time; reduce downtime and reduce maintenance costs.

Strict tolerance control

The stable tolerance fit between the F series bearing core and the bearing seat ensures the smooth running of the bearing under eccentric conditions. The precise material control of the bearing seat ensures that the bearing can still maintain excellent running performance under vibration conditions.

Fastening form

Bearings with top wire and eccentric sleeve adopt special anti-loose top wire.

The solution value of Fushan Bearing's commercial fan bearings

With close cooperation with customers, FSB designed F series fan bearings to help you present extraordinary value

The solution value of Fushan Bearing's commercial fan bearings

The solution value of Fushan Bearing's commercial fan bearings

1:F Through in-depth research and experimentation on the application of the fan, the fan and the bearing are perfectly combined, looking directly at the severe test of time and working environment.

2: F series bearings have a longer life than standard bearings, which improves the overall cost performance of the fan and makes the fan more competitive.

3: The high reliability of F series bearings reduces the number of maintenance, reduces downtime, reduces maintenance costs and improves the performance of the fan.

4: F series bearings can be several times the noise life of ordinary bearings under continuous operation, avoiding customer complaints and improving customer satisfaction.

扶梯解决方案

扶梯解决方案01

扶梯轴承现状分析

经济的快速发展和城镇化进程持续推进,扶梯成为必不可少的运输工具,市场对扶梯的使用性能也是高度关注:

运行中的轻、重载核

运行中的轻、重载核

间歇式的人流高峰,造成轴承的冲击载荷。

要求安全性能

要求安全性能

做为人们的日常交通工具,一天二十四小时不停机,如无计划停机及故障可能导致昂贵的后果,要求轴承必须安 全可靠。

舒适性灵活性

舒适性灵活性

扶梯在使用中加、减速必须运行平稳,要求轴承具有低 振动、低噪音、旋转灵活。

维修成本高

维修成本高

扶梯空间局限性,造成维修难度高,要求轴承长寿命。

运行环境差

运行环境差

要求轴承具有良好的防尘、防水密封性能以及较宽的温度使用范围。

FSB对扶梯的解决方案

通过在扶梯行业的经验和广泛的知识为后盾,FSB 针对您所面临的问题,结合我们的产 品提供全方位的解决方案。

高负荷能力和高精度

轴承的内部结构进行了优化设计及严格的加工精度控制,使其在受冲击载荷的情况下,仍保持高精度和长寿命,从而提高扶梯整体的安全性能。

高密封性

轴承外圈上的密封圈和内圈上的挡圈形成迷宫式密封,可 有效防止尘埃、水等侵入轴承内部。同时针对特别恶劣的场合,我们研发的三重密封圈的密封唇能以最佳的紧迫力与轴承内圈接触,强力阻止外部尘埃、水等侵入轴承内部,延长轴承的使用寿命。

适配的润滑脂

针对扶梯使用工况,选用适配的润滑脂,在运转过程中,轴承的摩擦面容易形成油膜,提高轴承的使用寿命及灵活性。

润滑脂补充方便快捷

通过轴承座上的油嘴,定期补充润滑脂,维护简单快捷,使轴承处于最佳状态,从而延长轴承使用寿命,降低维保成本。

高刚性、高强度的轴承座

轴承座选择优质的材料,通过高水平的铸造工艺及专用加工设备,使轴承上不会作用异常的负荷,从而提高轴承的整体安全性能。

免维护扶梯轴承

FSB能根据客户使用现场要求,优化密封和产品结构以及油脂来提供免维护扶梯轴承。

Escalator Solution

Escalator Solution 01

The status analysis of escalator bearings

With the rapid economic development and continued urbanization, the escalator has become an indispensable means of transport. The performance of the escalator is attracting more and more attention.

Light and heavy loads in operation

Light and heavy loads in operation

Intermittent peak flow, resulting in impact load on bearings.

Requirement of safety performance

Requirement of safety performance

As a daily means of transportation, the escalator works twenty-four hours a day without downtime.The unplanned downtime and fault may result in costly consequences, which requires the bearings to be safe and reliable.

Comfort and flexibility

Comfort and flexibility

During acceleration and deceleration, the escalator must be operated smoothly, which requires the bearing to be with low vibration, low noise and free rotation.

High maintenance cost

High maintenance cost

The space limitation of the escalator makes it difficult to maintain and requires long bearing life.

Poor operating environment

Poor operating environment

It requires bearings to have good dustproof, waterproof and sealing performance as well as wide temperature range.

Escalator Solution from FSB

Based on rich experience and and extensive knowledge in the escalator industry, FSB offers a complete solution to the problems you face in conjunction with our products.

High load capacity and high accuracy

The internal structure of the bearing is optimized and the machining accuracy is strictly controlled, so it can maintain high precision and long life under the impact load, which improves the overall safety performance of the escalator.

High sealing

The seal on the outer ring of the bearing and the retainer on the inner ring form labyrinth sealing, which can effectively prevent dust, water, etc. from invading the inner part of the bearing. At the same time especially in poor conditions, we develop three lips sealing to contact with the bearing inner ring with the best pressing, which prevents external dust, strong water invading into the interior of the bearing and prolongs the service life of the bearing.

Applicable grease

In order to improve the service life and flexibility of the bearing, it is easy to form an oil film on the friction surface of the bearing during the operation of the escalator.

Grease supplement is convenient and fast

The lubricating grease is periodically added through the grease nipple on the housings. The maintenance is simple and fast and the bearing is in the optimal state, which prolongs the service life of the bearing and reduces the maintenance cost.

High rigidity and high strength bearing housings

High quality materials are selected for the bearing housings. Through the high level casting technology and the special processing equipment, the bearing will not be affected by unusual load, which enhances the bearing overall security performance.

Maintenance free escalator bearing

According to customer's site requirements, FSB can provide maintenance free escalator bearings through optimizing sealing, product structure, and grease.

我们的专业技术人员会向你提供帮助。受理时间：8:00~18:00（周一~周五，不包括中国法定节假日）

邮件咨询：[email protected]

咨询电话：017-70102182 / 59928000

品牌承诺用心之

用心感知

用心感知，是一切创造的起点，也是 JXC践行品牌承诺的第一步。对于每个行业、每位客户的产品应用需求，我们均用心了解，深入沟通，为每位客户提供最适合的应用方案，真正做到以人为本。我们相信，根据行业差异，为客户优化产品方案，是制造业未来发展的最高追求。

用心创造

用心创造，JXC直面全球制造业的挑战，以持续不断的创造应对各行业的复杂性和不确定性，为世界各地的客户提供全面的智能化、信息化产品方案，引领科技推进、挑战极限。JXC针对不同客户的差异化、自主化需求，精心开发、研制特定的产品，用心创造个性化产品，满足行业需求。

用心靠近

用心靠近，是 JXC的终极目标，也是 JXC[用心改变]的最高承诺。我们深知每一个客户的珍贵，以客户为中心，持续创新技术、改进管理，秉承高质量为第一要求的发展理念，不断为客户、社会提供优质的产品、高效的服务及相关解决方案。以品质成口碑、以专业创高效，坚持自我反思，用心靠近需求。

嘉曦轴承（上海）有限公司