Hydraulic gear pump is composed of a pair of intermeshing gear, through the gear meshing and separation of the tooth rotation to form a change in the volume of oil and oil pressure. When the gear meshing, the meshing between the two teeth of the hydraulic oil due to the closure of the teeth can not be discharged to form a trapped oil phenomenon. Trapped oil will produce high pressure, side pressure on the shaft, easy to bend the shaft, premature bearing damage, but also consume the motor power. The solution is to open a discharge groove to the discharge chamber at the side of the gear meshing so that the oil trapped between the two teeth can be discharged to eliminate the trapped oil phenomenon.

Packing Box

Boxes are sized to pack and store small articles, meets most mailing and shipping carrier specifications, great for mailing candles, mugs, small soap and any other retail shipping
100% recycled & eco-friendly kraft corrugated mailer boxes, Single walled cardboard boxes, 32 ECT grade for standard stacking performance
Sturdy & Easy for USE- Crush Resistant Mailer of the double walls protection from 3 side. Just fold it directly, NO Tape or Glue needed
All cartons ship and store flat to save space, sold as 25 flat packed boxes per bundle

Packing Box,Packing Carton Boxes,Box Making Paper,Gift Box Paper Craft

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