All machine keys are in stock, shipping within 48 hours from USA

Metric Woodruff Key Slot Dimensions List
Metric Woodruff Key Dimensions
Metric Woodruff Key Set
Woodruff Key Metric Conversion

Keyseat Cutters by AB Tools, Inc, come in Carbide Tipped in standard length and extra-long and in Solid Carbide in both small diameter and large diameter. All of our keyseat cutters will be manufactured to your decimal width in 3-6 working days. Proudly made in the USA by AB Tools, Inc. An extensive offering of Indexable Carbide Insert TSC, T-Slot Milling Cutter For 1/2, 5/8, 3/4, 1, 1-1/4, 1-1/2 Inch Bolt Size ID 1099-high performance cutters are an outstanding value. Keyseat Dimensions for Woodruff Keys per. ANSI Hardware Design and Guide. ANSI Shaft and Hub Keyseat Dimensions for Woodruff Keys per. Related: Shaft Key Seat for Shaft and Hub ANSI B17.1; Shaft Arbor and Keyseat Dimensional Data ANSI B94.19; Keyseat Design Tolerances for Electric Motors and Generators. Stanho metric woodruff keys are supplied to DIN 6888 / ISO 3912 in C45k key steel and are made to minus tolerances (h9 on width and h12 on height). Our carbon keys are normally made from cold drawn SAE-1035 steel and come in a wide range of metric sizes. Below is a technical reference chart. All dimensions are in inches. RoyMech Resources Keyways Woodruff Metric key and Keyway Dimensions These Pages include various standards. To confirm the status of any standard, identify the replacement standard if it is obsolete and/or purchase the standard please use.

Machine Keystock Express’ goal is to offer lower prices on machine key stock and ready-to-use machine key sizes than other sellers.

All listed items are in stock and we ship our machine keys from the USA quickly! We ship only to the USA and Canada.

This website’s online store sells small quantities to retail customers of ready-to-ship machine keys that are in stock. For large quantity wholesale machine key orders or special order machine keys you need us to manufacture quickly, please visit our wholesale website.

Machine Keystock Express manufactures machine keys of the highest quality that meet ISO 9001 certifications. Our machine keys are manufactured with SS304 stainless steel and SC45 carbon steel and alloy steel in many sizes.

If you normally buy machine key stock to make your own machine keys, you may find it cheaper to buy our ready-made keys in the sizes you need, which can be less costly than your labor needed to work with key stock.

We manufacture several kinds of machine keys in many sizes:

Surely one of the most picture-perfect slot canyons in the world, Antelope Canyon is recognizable for its swirling sandstone walls, which form a cavernous and narrow path through it. Buckskin Gulch Slot Canyon (dpenn / iStock) Buckskin is the longest slot canyon in the U.S., and some consider it the longest in the world. It's also one of the most dangerous. The 12-mile path. Most beautiful slot canyon in world time. Siq canyon is undoubtedly one of the most beautiful spots of Petra. This canyon is 1.2 km long having thin narrow walls. It is a magical experience to walk through these canyons as its guides towards the hidden city. Antelope Canyon Antelope Canyon is located in Navajo land near Page, Arizona and is one of the best known and most beautiful slot canyons in the world. Formed by flash floods that eroded the sandstone, the canyon is divided into lower and upper cavities. Antelope Canyon is not only photogenic, it is also unbelievably gorgeous. The canyon is located in Navajo land, Arizona, USA, and is one of the most photographed and most visited slot canyons in the world.

Woodruff keys are half-circle shapes, with radius or flat bottoms. DIN-6888.
Parallel keys are rectangular shapes with ends that are square (DIN-6885-B), round (DIN-6885-A), or both (DIN-6885-AB). We have in stock ready-to-use keys in inch and metric sizes
Key stock is very long so you can cut it into whatever size machine keys you need. We have ready-to-ship key stock in inch and metric sizes.

Need Wholesale Quantities?

We have the lowest prices and can manufacture
any kind of precision machine keys or parts you need.
Visit our wholesale site and we’ll provide a price quote

What Are Machine Keys,
Also Known as Shaft Keys?

Machine keys are used in power transmission to transmit torque between a shaft and a shaft mounted component such as a gear, pulley, or coupling. Both the shaft and the component must be machined with a keyway of the appropriate size and style for the key to be used.

Machine keys are sometimes called shaft keys, or sunk keys, and are available in a variety of types and include Parallel Keys, Flat Keys, Woodruff Keys, Square Keys, Rectangular Keys, Plain Taper Keys, Gib-Head Taper Keys, Perpendicular Pins and the Feather Key.

Machine Keys have a wide range of applications in our daily lives. Machine Keys hold machinery parts in place or align components. Machine Keys are used in power transmissions, motors, speed reducers, variators, automobiles, motorcycles, and industrial machines.

Each machine key has few attributes such as width, height, length, finish, and tolerance. It is important to understand the tolerance attribute. There are two type of tolerance. An oversize tolerance machine key provides a slightly tighter fit and an undersize tolerance machine key provides a slightly looser fit. Tolerance is specified in standards such as DIN6885 and JIS B 1301. Machine keys with metric (mm) measurement are almost always made as close tolerance undersized, whereas machine keys with imperial measurement (inch) tend to be made in both oversize and undersize tolerance sizes.

Sometimes the term machine key and keystock are used interchangeably. However, the term keystock refers to a “stock” of material that is 300mm, 1 foot or longer in length, and from which machine keys are made. Machine key refers to a finished product that is installation ready. Keystock is often used in post market repairs or small production. Keystock and machine keys are made from material such as carbon steel, stainless steel or alloy steel.

Parallel Machine Keys

Metric Woodruff Key Slot Dimensions List

Parallel keys are the most widely used. They have a square or rectangular cross-section. Parallel keys include Square Keys, Rectangular Keys. The shaft is usually key slotted for the full length for the shaft or slotted from the end of the shaft and along the length of the shaft for a distance greater than the length of the key to be used. Parallel keys can be installed by lining up the keyslots in the shaft and the component and then pressing the parallel key between the slots. There are three shapes of parallel keys depending on the ends of the keys. The end of a key can be either square or radius or round. The type of ends are referred to as “Forms”. Form A refers to a round end and Form B refers to a square end. For a Form A key, both ends are round, sometimes called the double round key. Form B key has both ends square. Form AB is a key with one end round and one end square, sometimes called the single round key.

Woodruff Keys

A woodruff key is a half moon shaped key that is inserted into a curved slot in the shaft. Woodruff keys are machined metal fasteners used to transfer torque from a shaft to gears where tight tolerances and functionality are vital. They are precisely a fail-safe device to ensure that the key breaks before the gears do, cutting replacement costs down significantly. Woodruff keys are used in a variety of applications including, lawn and garden equipment, automobiles, trucks, pumps, electric motors, agricultural equipment and other heavy equipment. They are used more often than machine keys in automated assemblies, such as automotive, because they are easier to feed and maintain tight tolerances. No matter the application, the woodruff key’s job is the same, to transfer the torque by locking the gears into the crank shaft.

Machine Key Standards

There are two sets of standards in the world – one for the imperial (inch) and another for metric (mm). DIN 6885 and JIS B 1301 deals with metric keys and ANSI B17.1 and BS 46 deals with imperial machine keys. These standards define the material,