Tapered Shaft Customer Acknowledgement - Danfoss H1 Series Technical Information

Technical Information
H1P 115/130 Axial Piston Single Pumps
Dimensions
© Danfoss | May 2018

Tapered shaft customer acknowledgement

The Danfoss H1 tapered shaft has been designed using the industry standard ISO 3019-1, minus the
through-hole in the end of the shaft. Danfoss recommends a self-locking nut instead of a castle nut and
pin. The nut and mating square-cut key are customer supplied. The specified torque rating of the tapered
shaft is based on the cross-sectional diameter of the shaft, through the keyway, and assumes the proper
clamp and fit between shaft and coupling.
Danfoss guarantees the design and manufactured quality of the tapered shaft. The customer is
responsible for the design and manufactured quality of the mating female coupling and key and applied
torque on the nut. Danfoss has made provisions for the key in accordance to the ISO specification with
the understanding that the key is solely to assist in the installation of the mating coupling.
C
Caution
Possible hazard because torque or loading inadvertently transmitted by the customer supplied key may
lead to premature shaft failure.
Torque must be transmitted by the taper fit between the shaft and it's mating coupling, not the key.
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