Crankshaft Oil Seal for Kerr KA-3500PT
This is a crankshaft oil seal for the Kerr KA-3500PT reciprocating pump. Fitted where the crankshaft passes through the power-end housing, it retains the lubricating oil inside the power end and keeps contaminants out. It fits the KA-3500PT pump model and is an aftermarket replacement part for Kerr SKU KA-3. It weighs about 0.30 lb.
What it is
The crankshaft in the power end converts rotary input into the reciprocating motion of the crossheads and rods that drive the pumping strokes.
Pump compatibility
Specifications
| Property | Value |
|---|---|
| Weight | 0.30 lb (≈ 0.14 kg, converted) |
Manufacturer technical notes
Crankshaft Oil Seal for Kerr KA-3500PT (SKU: KA-3) Forged from fluorocarbon rubber (FKM) with stainless steel frame vulcanization (API 7K-compliant), temperature range -20℃~+200℃, dynamic sealing longevity ≥8000hrs, salt spray tested 500h corrosion-free, pressure differential ≥40MPa for high-speed mud pump reliability.
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing Kerr KA-3.
FAQ
- Which pump does this oil seal fit?
- It fits the Kerr KA-3500PT pump model.
- What does a crankshaft oil seal do?
- It retains the lubricating oil in the power end and excludes contaminants where the crankshaft passes through the housing.
- What part number does it replace?
- It is an aftermarket replacement for Kerr SKU KA-3. The brand and part number are listed for cross-reference only and do not indicate OEM manufacture.
Related parts
All brand names, model numbers and part numbers are used for identification and cross-reference only and do not imply original-equipment manufacture. This is an aftermarket replacement part.
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