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Keys · DIN 6887 (gib-head taper keys) — 1:100 taper · Application guide

What Are Gib-Head Taper Keys (DIN 6887) Used For?

Typical applications, the industries that specify gib-head taper keys (din 6887), and how to choose the right size, material and finish for the joint.

Gib-Head Taper Keys (DIN 6887) are used for transmitting torque between a shaft and a hub. They are manufactured to DIN 6887 (gib-head taper keys) — 1:100 taper, and selection is driven by the key section, the fit and tolerance the assembly requires, and the service environment.

Primary duty
Transmitting torque between a shaft and a hub
Governing standard
DIN 6887 (gib-head taper keys) — 1:100 taper
Key section range
10 mm to 65 mm
Category
Keys

Application notes are general engineering guidance. Verify the property class and any approval requirement against your own design calculation.

What Are Gib-Head Taper Keys (DIN 6887) Used For? application image

Application guide for Gib-Head Taper Keys (DIN 6887) to DIN 6887 (gib-head taper keys) — 1:100 taper. The core duty of the type is transmitting torque between a shaft and a hub. The typical industries, the how-to-specify checklist, assembly practice and the exclusion cases are set out below. Stocked across roughly 10 mm to 65 mm, they cover general to heavy-duty work.

Typical Applications for Gib-Head Taper Keys (DIN 6887)

The most common settings where these are specified:

  • Power transmission: locking pulleys, sprockets and couplings to a shaft.
  • Gearboxes & motors: transmitting torque from a shaft to a hub.
  • Pumps & fans: driving rotating components without slip.
  • General machine building: fastening covers, brackets, motors and sub-assemblies on production equipment.
  • Maintenance & repair (MRO): a stocked size for servicing existing plant where the original fastener spec must be matched.

How to Specify Gib-Head Taper Keys (DIN 6887) for Your Application

  • Size: Select on key section, and confirm it against the mating feature in the assembly. This product spans 10 mm–65 mm; check the full table below for the exact dimensions of each size.
  • Material: Choose the material and finish for the service environment — plated steel for general use, stainless for corrosion resistance.
  • Environment: For damp, coastal or chemical exposure prefer A4/316 stainless or a suitable coating; indoors, plated steel or A2 is usually sufficient.
  • Standard: This product is supplied to DIN 6887 (gib-head taper keys) — 1:100 taper. Quoting the standard on your order guarantees interchangeable dimensions between suppliers.

Where Gib-Head Taper Keys (DIN 6887) Are Not the Right Choice

Not for very high reversing torque without an interference fit, and not as an axial retainer.

Technical Drawing

Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the size will snap the other fields to that size's standard values; you can then override any individual value.

Sends the selected values to the quote form below.

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The form below follows the current technical drawing configuration. Change the drawing values above and the request details update automatically.

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Specification
Business Information

Dimensions & Specifications (DIN 6887 (gib-head taper keys) — 1:100 taper)

Shaft diameter overto and includingKey width b (mm)Key height h (mm)Head
101244gib head
121755gib head
172266gib head
223087gib head
3038108gib head
3844128gib head
4450149gib head
50581610gib head
58651811gib head
65752012gib head
Inside the plant

Manufactured in our own plant

This part is cold-formed, threaded, heat-treated and finished in-house. The stages below are where its class and finish are actually decided.

  1. Wire rod feeding into a cold heading machine
    01

    Cold heading

    Wire rod is drawn to size and cold-formed into blanks. Forming rather than cutting keeps the grain flow continuous around the head, which is where a bolt is most likely to fail.

    Head dimensions and under-head radius checked at set-up and per shift.

  2. Thread rolling machine producing bolt threads
    02

    Thread rolling

    Threads are rolled between hardened dies rather than cut. Rolled threads are stronger in fatigue than cut threads and hold pitch and flank angle far more consistently across a batch.

    Go / no-go ring gauges to ISO 965 tolerance class 6g.

  3. Baskets of bolts staged for heat treatment
    03

    Heat treatment

    Quench-and-temper brings carbon and alloy steel to the property class ordered — 8.8, 10.9 or 12.9 — with the furnace charge tracked so a finished lot can be traced back to it.

    Core hardness and tensile tested per lot to ISO 898-1.

  4. Zinc plated bolts in a treatment basket
    04

    Surface treatment

    Zinc, zinc-nickel, hot-dip galvanizing, black oxide, phosphate and Dacromet, selected against the service environment rather than against the price list.

    Coating thickness and neutral salt spray hours to ISO 9227.

Frequently Asked Questions

How do Gib-Head Taper Keys (DIN 6887) transmit torque?

The key sits in matching keyways in the shaft and hub, transmitting torque in shear. Size the key to the shaft diameter using the standard, and ensure both keyways are cut to spec.

What material should Gib-Head Taper Keys (DIN 6887) be for outdoor use?

For damp, coastal or chemical environments specify A4 (316) stainless or a suitably coated steel. For indoor or dry use, A2 (304) stainless or zinc-plated steel is normally adequate.

Are Gib-Head Taper Keys (DIN 6887) made to a recognized standard?

Yes — they are manufactured to DIN 6887 (gib-head taper keys) — 1:100 taper, so dimensions are interchangeable between suppliers when you quote the standard on your order.

What are Gib-Head Taper Keys (DIN 6887) used for?

Transmitting torque between a shaft and a hub. They are supplied to DIN 6887 (gib-head taper keys) — 1:100 taper.

Can I get a quote for Gib-Head Taper Keys (DIN 6887) in the size and material I need?

Yes. Use the technical drawing and quote form on this page to set the size and options, then send the exact configuration to our team for pricing and lead time.