How do I know what size my keyway is?

In the English system, it is standard practice to dimension keyways. The hub keyway is dimensioned by its width and depth on the shaft – keyway sides. Referencing Figure 1, the keyway dimension is W x T1. Unless otherwise specified, the shaft keyway is assumed to be standard.

What is standard keyway size?

Key Depth Tolerance is +. 010/-/000 for all standard keyways….Standard Keyway Dimensions.

Bore Width Depth
1/2 1/8 0.555
9/16 1/8 0.618
5/8 3/16 0.704
11/16 3/16 0.768

What is the slot called in a shaft that a key fits into?

One part of the Shaft key fits into a precut slot in the shaft known as a key seat and the other part fits into a slot in the hub called a keyway.

How are keyway depths measured?

Metric keyways are dimensioned by width and depth as measured from the radius of the shaft to the center of the keyway.

What is a taper key?

Tapered keys The keyway in the hub has a taper that matches that of the tapered key. Some taper keys have a gib, or tab, for easy removal during disassembly. The purpose of the taper is to secure the key itself, as well as, to firmly engage the shaft to the hub without the need for a set screw.

What is shaft key?

: a key fitting in a shaft to secure an operating part fastened in or to the shaft.

What is key design?

Key design characteristics (KDCs) are important information related to the product and part designs, which significantly influence on the product’s functions, performances, and quality.

What is an SC keyway?

The SC1 Keyway provides an avenue through which consumers can experience the convenience of patented SmartKey® technology, which allows locks to be rekeyed without taking the lock off the door or hiring a locksmith, and without worrying about lost or unreturned keys.