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Your Professional Keys 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.

Gib Head Taper Key
No.:LM-1266. Model NO.:DIN 6887. Head Type:Gib Head. Product Name:Gib Head Machine Key/Taper Key
Half Round Key
No.:LM-1265. Model NO.:DIN6888. Color:Black/Sliver. Industry:Fastener/Key
Parallel Sunk Key
Number:LM-1246. Product Name:Parallel Key. Color:Silver. Pin Material:Stainless Steel/Carbon Steel/Alloy Steel

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：

Gib Head Taper Key

Gib Head Taper Key is a detachable connection between the shaft and the drive member on the shaft, mainly used to transfer torque and motion. ‌ The upper surface and the bottom surface of the hub keyway have a slope of 1:100, through the wedge action to produce pretension force, rely on friction to transfer torque, and can withstand one-way axial force ‌.

Half Round Key

Half Round Key is a kind of key, its upper surface is a plane, the lower surface is a semicircular arc, the two sides are parallel, commonly known as Half-Moon Key.semi-circular key is a kind of key connection.

Parallel Sunk Key

Parallel Sunk Key is a key that relies on two sides as a working face and transmits torque by pressing the key and the side of the keyway. Parallel keys are divided into ordinary flat keys, thin flat keys and guided flat keys. The ordinary flat key and thin flat key are used for static connection, and the guiding flat key is used for dynamic connection.

Product Specification

We provide the following product specifications：

Weight (lbs.):	0.0452	Width Minimum:.	2460 in
Country of Origin:	USA	Height Maximum:	.2550 in
RoHS Compliant:	Yes	Height Minimum:	.2500 in
HTS Number:	7215100080	Effective Length Maximum:	1.948 in
Width:	.2500 in	Effective Length Minimum:	1.928 in
Effective Length:	1.938 in	Overall Height Reference:	.4375 in
Inch or Metric:	Inch	Gage Length:	.2500 in
Height:	.2500 in	Effective Length Fraction:	1-15/16 in
Shape:	Square	Width Fraction:	1/4 in
Finish:	Plain	Height Fraction:	1/4 in
Material:	Low Carbon Steel	Overall Height Reference Fraction:	7/16 in
Width Maximum:	.2500 in	Gage Length Fraction:	1/4 in

Product features

Gib Head Taper Key

Working principle of Gib Head Taper Key is based on its wedge structure. When key is driven into the keyway of the shaft and hub, the slope of upper surface of key and bottom surface of the hub keyway makes key tightly wedged and produces a pre-tightening force.
When working, the key relies on friction to transmit torque and can withstand unidirectional axial loads.GB/T 1565-2003 standard specifies the type and size of the key, suitable for the width of 4mm to 100mm of the key ‌.
The characteristic of this key is that its hook design makes it suitable where the key cannot be punched out from the other end ‌.The key is often used in the need of tight key connection, is not suitable for high precision requirements of the connection.

Half Round Key

Light load connection: Because the Half Round Key to the shaft weakening is larger, usually used in light load occasions.
Strong adaptability: It can swing in the shaft groove to adapt to different installation needs.
Parallel on both sides: Ensure the parallel between the key and the shaft and the wheel hub.

Parallel Sunk Key

Size of the torque to be transmitted; Whether the parts connected to the shaft need to slide along the shaft and the length of the sliding distance.
Neutral requirements for the connection; Whether the key needs to have an axially fixed function; And the position of the key on the axis (in the middle or end of the axis).
Type selection.The type of Parallel Sunk Key should be selected according to the structure, use characteristics and working conditions of the key connection.

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 Size:	10.00cm * 10.00cm * 10.00cm
Package Gross Weight:	5.000kg

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FAQ

Q: What is the taper of a gib head key?

A: The top face of the key is machined as a taper of 1 in 100 during manufacture. The taper of the key secures it in the assembly and provides a locked engagement with the shaft to the hub without the need for locking screws and with no backlash.

Q: How do gibs work?

A: Gibs are wedge-shaped pieces of metal or wood used to fill gaps between parts and maintain alignment.

Q: What is the purpose of a taper pin?

A: The taper pin provides a cheap, convenient method of fixing the hub of a gear or a pulley to a shaft. The pin is driven into a tapered hole that extends radially through the hub and shaft.

Q: Why is the woodruff key used?

A: Woodruff keys are semi-circular discs used to connect machine parts to rotating shafts and spindles. They serve to stop gears or other machine parts from moving independently from the rotating shaft and are often installed into the recessed key seats cut into the said shafts.

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 keys manufacturers and suppliers in China. If you're going to wholesale high quality keys made in China, welcome to get pricelist and free sample from our factory. Also, OEM service is available.

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