Here.Key and keyway dimensions notes.
Table of Contents
Key and keyway dimensions
Current JIS standard (JIS B 1301-1996)
This is currently in operation.Dimensions of current JIS standardIt is.
Use of dimensional tolerances
Keys and keyways have individual tolerances (dimensional tolerances), which allow the designers to determine the degree of coupling by providing a tolerance on the width dimension and allowing them to choose.
- Sliding type: Shaft and hub can slide axially*Select only when disassembling frequently because it is easy to fall off.
- Normal type: Hub fits into a key fixed to the shaft*In general, please specify this
- Tightening type: Tightening the hub to the key fixed on the shaft (hammering in the key)It is not for regular use because it is difficult to assemble.
Note: The above table does not include the sliding type, so we will replace the figure when it does.
Reference: Old JIS standard
Old JIS standard (Class 1)
This isOld JIS standard (JISB1301-1959) likely to be used for older machines Is. For reference only.
Old JIS standard (Class 2)
This isOld JIS standard (JISB1301-1959) likely to be used for older machines Is. For reference only.
That's it.