⑴--Type of slewing ring
HSW: Outer gear, single-row ball
HSN: Inner gear, single-row ball
⑵--Dia. of track center, mm
⑶--Dia. of roller ball, mm
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⑷--Classification code No. of gear module
A: bigger module; without A: normal
For example:
Single-row ball, bigger module, outer gear, Dia. of track center 1250mm,Dia. of ball 40mm, refer to the following:
Slewing ring HSW1250.40A JG/T66-1999
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