581-50-21250 5815021250 Motor Grader Hydraulic Cylinder Rod Dust Seal Construction Machinery Replacement Spare Component

Q: What construction machine is dust seal part number 581-50-21250 designed to fit?
A: The dust seal 581-50-21250 is made for motor grader hydraulic cylinder overhaul and field servicing.

Q: What materials are used to manufacture dust seal part 581-50-21250?
A: 581-50-21250 dust seal uses high toughness polyurethane scraping lip and resilient NBR rubber body.

Q: What contaminants can this dust seal block during motor grader working cycles?
A: It removes road grit, fine dust and wet mud from piston rod surface and stops them entering cylinder assembly.

Q: Where is this dust seal mounted on the motor grader hydraulic cylinder?
A: It sits inside the gland groove at the outer end of cylinder where piston rod extends outward and retracts.

Q: What key feature makes this dust seal suitable for road construction sites?
A: It keeps stable lip pressure even under continuous vibration from blade angle adjustment and ground scraping.

Q: What will happen once the lip of this dust seal is worn down?
A: Dirt and abrasive debris will go inside and create scratches on piston rod and wear the inner sealing parts.

Q: What point needs confirmation before purchasing this dust seal?
A: It fits specific motor grader cylinder sizes, kindly confirm seal dimensions before placing your order.

Q: How to inspect the working condition of this dust seal during regular maintenance?
A: Check the sealing lip for surface abrasion, hardening or permanent distortion after long running time.