Pony Rod Oil Seal
This is a pony rod oil seal for the Aplex SC-170DD pump. It seals where the pony rod passes through the housing, retaining lubricating oil in the power end and keeping contaminants out. The seal measures about 2.50 in across and 0.45 in thick. This is an aftermarket replacement part offered as a reference equivalent to Aplex part number 145-200212-503, not an original Aplex component.
What it is
An oil seal retains lubricating oil in the power end and excludes contaminants where a shaft or rod passes through the housing.
Pump compatibility
Specifications
| Property | Value |
|---|---|
| Weight | 0.05 lb (≈ 0.02 kg, converted) |
| Width | 2.50 in / 6.4 cm |
| Height | 2.50 in / 6.4 cm |
| Depth | 0.45 in / 1.1 cm |
Manufacturer technical notes
Pony Rod Oil Seal (SKU:145-200212-503) Composed of ASTM D2000-22 NBR rubber (Oil Resistance Class 2) bonded to 304SS core via vulcanization, Shore A 70±3 hardness, temperature range -30°C~120°C. Electroplated layer ≥15μm (GB/T 9799), API 7K compatible for mud pump pony rods, compressive strength ≥80MPa, salt spray tested >1200hrs corrosion-free
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing Aplex 145-200212-503.
FAQ
- Which pump does this oil seal fit?
- It is configured for the Aplex SC-170DD pump.
- What does a pony rod oil seal do?
- It retains lubricating oil in the power end and excludes contaminants where the pony rod passes through the housing.
- Is this an original Aplex part?
- No. It is an aftermarket replacement supplied as a reference equivalent to Aplex part number 145-200212-503; the brand and part number are for identification only.
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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