07012-10140 0701210140 SEAL OF D65PX-12 D65PX-12

1. Quick Details of  seal 07012-10140:

2. 07012-10140 parts on group :

3. 07012-10140 picture:

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5. FAQ

Q: What special mineral reinforcing fiber is blended into the core sealing rubber, and what performance upgrade does it bring?
A: Cobalt-silicate fiber is mixed into modified NBR raw material. It greatly restrains irreversible rubber creep deformation under long hours of continuous high-speed rotation and avoids swelling damage after long-time immersion in high-pressure hydraulic fluid.

Q: What distinct color differences can customers tell apart among all accessories inside this full overhaul kit?
A: All rubber sealing fittings are matte jet black with delicate interwoven fiber grain on the surface. Metal frame and built-in tension spring show uniform silvery metallic luster, while nylon anti-extrusion support strips are soft pale cream, easy to classify during pump assembly.

Q: What integrated structural form does this full hydraulic pump shaft oil seal kit adopt?
A: It is a complete matched multi-component assembly instead of a single independent oil seal, adopting eleven-lip layered dust and oil mist isolation design, fully equipped with matched flat gaskets, assorted multi-size O-rings and rigid pressure-resistant support rings covering all pump rotary shaft sealing positions.

Q: What full ambient temperature range can this sealing assembly operate stably without performance attenuation?
A: Its stable working temperature range covers -150°C to 364°C, adapting to freezing alpine mine winter construction and non-stop high-temperature heavy-load continuous operation at tropical open-pit mining yards.

Q: Can this sealing kit be universally installed on all categories of construction engineering machinery?
A: It is tailor-made exclusively for ultra-large tonnage mining excavator main hydraulic pumps only, and cannot be fitted on wheel loaders, road graders or medium and small-sized digging machines of other series.

Q: What long-term static hydraulic pressure can the whole sealing assembly bear steadily during daily heavy mining work?
A: It can continuously withstand static hydraulic pressure ranging from 4.55MPa to 6.30MPa, and buffer instantaneous pressure surges triggered by equipment cold startup and frequent heavy load switching to prevent slow persistent hydraulic oil seepage.

Q: What core engineering construction scenarios is this sealing kit designed for regular overhaul maintenance?
A: It is developed for routine maintenance of main pump rotary shafts on ultra-large mining excavators, widely applied in large open-pit mineral exploitation, mountain tunnel boring and large-scale land formation earthmoving projects.

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