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Square and Rectangular Keys and Keyways: Width Tolerances and Deviations Greater than Basic Size
Translate name
STANDARD published on 1999
Designation standards: ASME B18.25.3M-98:1999(R2008)
Publication date standards: 1999
SKU: NS-1225946
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: American technical standard
Category: Technical standards ASME
This standard covers requirements for square and rectangular parallel keys and keyways intended for both alignment of shafts and hubs, and transmitting torque between shafts and hubs. Keys covered by this standard have a relatively loose width tolerance. All width tolerances are positive. Keys with minus width tolerances and a smaller tolerance range are covered by ASME B18.25.1M. The inclusion of dimensional data in this standard is not intended to imply that all sizes described are production stock items. Consumers should consult with suppliers concerning lists of stock items.
Reaffirmed: 2008
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Latest update: 2025-07-17 (Number of items: 2 208 096)
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