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Your Professional Hydraulic Fasteners Manufacturer

Wuxi Lemar Metal Products Co., Ltd. is a professional fastener system service group integrating scientific research, manufacturing, sales and logistics. It follows the business philosophy of "striving for excellence and adhering to integrity" and has established a good image in the field of fastener manufacturing and sales. It has established long-term cooperative relationships with major well-known logistics brands at home and abroad to ensure that products are delivered to customers at the fastest speed and are well received by users.

Why Choose Us

Technical team support
Possess full process manufacturing capabilities and experimental research and development capabilities for fasteners. With strong technical strength and 3D marketing network, it has more than 100,000 enterprise-level users and serves 57 industries.

Production Equipment
Our company has cold heading machines, thread rolling machines, wire drawing machines, thread rolling machines, tapping machines, vibration plate automatic assembly and other processing and feeding equipment.

Sales Market
Lemar Assisting scientific research enterprises,exported to Europe,North America, Africa, Central Asia, Middle East.

Common types

We provide the following product introduce：

Lower Spring Seat

Spring seat structure is a common mechanical connection mode, which is widely used in various mechanical equipment. The spring seat structure is composed of two parts of the spring and the seat, in which the spring plays the role of connection and buffer, and the seat is the support and fixed part of the spring. Spring seat structure is widely used in engineering, especially in automotive, aerospace, machinery manufacturing and other fields.

Sleeve bearing Bushing

Bushing is used outside the mechanical parts to achieve sealing, wear protection and other functions of the accessories, refers to the role of the ring sleeve. In the field of valve application, the bushing is inside the valve cover, and corrosion resistant materials such as polytetrafluoroethylene or graphite are generally used for sealing.

Product Specification

We provide the following product specifications：

Technical Data：
Max Load Capacity	Static load	250N/m㎡
	Dynamic load	150N/m㎡
Max Sliding Speed	Dry friction	2. 5m/s
	Oil lubrication	5. 0m/s
Max PV Value Limit	Dry friction	4.2N/m㎡·m/s
	Oil lubrication	60N/m㎡· m/s
μ Friction coefficient		0.03~0.18
Working temperature		-195℃~+280℃
Thermal conductivity		42W/m·k

Application and ‌Installation

Used in Packaging machinery, textile machinery, mining machinery, metallurgical machinery, all kinds of machine tools and interchangeable mechanical transmission connections.Features: large torque, high precision, convenient installation and disassembly, simple operation, good positioning, reduce the scrap rate of the matched shaft and hub, do not damage the matching surface.
Sleeve Bearing Bushing in the factory has been coated with lubricating oil, can be directly installed and used. When installing, first screw three bolts into the screw hole of the flange of the other part along the circumference, and open the inner sleeve and outer coat. Then put the expansion sleeve into the design position of the hub hole, use the force measuring plate hand to tighten the bolt.
Will first loosen all the bolts a few rings. Then screw the bolt top loose sleeve in the removed screw hole.
Installation to prevent expansion sleeve pollution. In the open air operation or poor working environment of the machine, should be regularly exposed expansion sleeve end face and bolts on the anti-rust grease, should choose a better anti-rust expansion sleeve type. The expansion coupling sleeve is a new advanced mechanical foundation in modern times.

Customization Process

Requirement Discussion

Design Proposal

Our professional team will develop a design proposal and provide a quotation based on your requirements.

Sample Production

We produce samples according to the design proposal and conduct rigorous testing.

Mass Production

Upon your approval, we commence mass production to ensure timely delivery and consistent quality.

After-Sales Service

We offer ongoing technical support and service to ensure the long-term stable operation of our products.

Other Services

Surface treatment: Plain, Galvanized, Hot Dip Galvanized, Black Oxide, Anodized, etc.
Excellent quality control system for fine dimensional accuracy.
Various materials are available as per your request
Conform to international standard.
We had got certificate of ISO9001: 2008, SGS & RoHS.
Prompt delivery.
Various sizes are available.
Material: Stainless Steel 18-8 18-10, Carbon steel Gr4.8 Gr8.8 Gr10.9, Gr12.9, Aluminum, Copper, etc.
Packing Stylet: General export packing
Can be made with different standards such as ISO, DIN, AS/NZS, GB, ANSI, BS and special standard.
Good customer service
OEM is available

Package & Delivery

Package:	10.00cm * 10.00cm * 10.00cm
Delivery:	5.000kg

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FAQ

Q: What is a spring seat on a car?

A: The spring seat is an integral yet rarely spoken about part in your cars suspension setup. The spring seat provides a cradle for the top of the spring and strut assembly. It works in part to cushion the energy from bumps but also works as a cushion for spring recoil.

Q: Should you replace both upper and lower spring seats?

A: Yes, it pays to change both, The good old spring will have settled some and will be shorter than the new spring causing the suspension to be higher on one side affecting the steering alignment.

Q: What is the purpose of sleeve bushings?

A: Bushings, also known as sleeve bearings, provide a sliding surface with no rolling elements. They are self-lubricating and are used in applications where low friction and simple design are essential, like in hinges and pivots.

Q: When to use a bushing instead of a bearing?

A: Here are the scenarios where opting for a bushing over a bearing might be more appropriate: Bushings generally have a larger surface area in contact with the shaft compared to bearings. This makes them better suited for applications where higher loads are present but at lower speeds.

Q: How often should bushings be changed?

A: Depending on driving conditions and vehicle usage, bushings may need replacement every 50,000 to 100,000 miles. However, if you experience any issues or see signs of damage, it's important to replace them sooner to avoid further damage to the suspension system.

Q: Is it hard to replace bushings?

A: Some bushings can be difficult to replace and may need specialized tools. In this case, it can be more economical to replace the entire component rather than just the bushing. For example, some control arm bushings cannot be replaced separately, so the control arm will have to be replaced entirely.

Q: Are you manufacturer or trading company?

A: We are manufacturer.

Q: What's your best delivery time?

A: Within 15-30 days.

Q: What is the quality control of your product?

A: Follow strictly quality control measures for implementation,

Q: Will your company provide free sample?

A: It depends on which sort of item you want to get. Some can be provided free of charge, however, the client shall assume the shipping fees himself.

Q: Is OEM open to clients?

A: Yes, we can provide both OEM and ODM service.

Q: How can our company be your distribution partner?

A: We welcome you to be our distributor. For further details, please contact us.

Q: What is the payment of sample?

A: T/T and Alipay both acceptable.

Q: What is your sample policy?

A: If we have stock, we can provide samples, but the customer must pay the sample fee and express fee Question.

Q: Have you tested all your goods before shipment?

A: Yes, we will conduct 100% test before delivery, and we will send detailed photos of parts for your approval Question.

We're well-known as one of the leading hydraulic fasteners manufacturers and suppliers in China. If you're going to wholesale high quality hydraulic fasteners made in China, welcome to get pricelist and free sample from our factory. Also, OEM service is available.

sleeve bearing Bushing, hydraulic fasteners, Lower Spring Seat

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