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Order LookupMachine Keys
Machine keys are metal blocks and wedges that insert between a drive shaft and a driven component to transfer the rotational force needed to spin the drive component. They fit into precut slots in the shaft called key seats and grooves in the hub called keyways.
Straight Keys
Straight keys, also called parallel or Form-B machine keys, feature straight and parallel sides set 90° from each other. This design creates a large contact area between the key, the shaft, and the rotating component. This ensures efficient force transfer and reduces the chance of the key deforming or slipping.
Inch
Oversized
Plain Grade 1018/Grade 1045 Steel
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Undersized
Zinc Plated Grade 1018/Grade 1045 Steel
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Plain Grade 1018/Grade 1045 Steel
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Metric
Undersized
Plain Ungraded Steel
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