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Home > Products > Piston Seal Rings > 707-44-70070 7074470070 RING,PISTON OF D21A-8 D20PG-7A

707-44-70070 7074470070 RING,PISTON OF D21A-8 D20PG-7A

Name: 707-44-70070 7074470070 RING,PISTON OF D21A-8 D20PG-7A
Brand: Guangzhou Opal Machinery Parts Operation Department
SKU: 707-44-70070
Price: 1.50 USD
Availability: InStock

Product Details

Place of Origin: China

Brand Name: OUB

Certification: ISO9001

Model Number: 707-44-70070

Payment & Shipping Terms

Minimum Order Quantity: 10

Price: Negotiable

Packaging Details: PP Bag Inside.outer is carton with film wrapped.

Delivery Time: Within 5-15 days after getting your desposit

Payment Terms: L/C,D/A,D/P,T/T,Western Union

Supply Ability: 1000Pcs

Get Best Price

Product Details

Product Description

Product Details

Highlight: 
                                                                                                                                                                                                                                                D21A-8 piston seal ring, D20PG-7A piston ring, 7074470070 piston ring
                              

Part No.::	707-44-70070	Part Name::	SEAL RING
Model:	D21AG-7	Machine:	Excavator
Material:	NBR	Color:	BLACK

Part No.::	707-44-70070
Part Name::	SEAL RING
Model:	D21AG-7
Machine:	Excavator
Material:	NBR
Color:	BLACK

Product Description

1. Quick Details of seal 707-44-70070:

Part NO.	707-44-70070
Machine	Excavator
Size	OEM
Material	NBR
Type	RING SEAL

2. 707-44-70070 parts on group :

707-44-70070 7074470070 RING,PISTON OF D21A-8 D20PG-7A

NO.	PART NO.	PRAT NAME	QTY
1	707-11-70840	CYLINDER,L.H.	1
	707-11-70850	CYLINDER,R.H.	1
2	02896-11009	O-RING (KIT)	2
3	07143-10404	BUSHING	1
4	07145-00040	SEAL,DUST (KIT)	2
5	707-29-70821	HEAD,CYLINDER	1
6	07177-03525	BUSHING	1
7	707-51-35210	PACKING,ROD (KIT)	1
8	175-63-75190	SEAL,DUST (KIT)	1
9	07179-12047	RING,SNAP	1
10	07000-12065	O-RING (KIT)	1
11	07146-02066	RING,BACK-UP (KIT)	1
12	07000-12070	O-RING (KIT)	1
13	721-58-35410	ROD,PISTON	1
14	707-76-35050	BUSHING	1
15	07145-00035	SEAL,DUST (KIT)	2
16	707-36-70930	PISTON	1
17	707-44-70070	RING,PISTON (KIT)	1
18	07156-00710	RING,WEAR (KIT)	1
19	707-67-24010	NUT	1
20	707-86-39270	TUBE,L.H.	1
	707-86-39280	TUBE,R.H.	1
21	02896-11009	O-RING (KIT)	1
22	01010-81040	BOLT	1
23	01643-31032	WASHER	1

3. 707-44-70070 picture:

707-44-70070 7074470070 RING,PISTON OF D21A-8 D20PG-7A
4. Service part number :

PART NO.	PART NO.	Part NO.
707-51-14110	707-98-25870	707-98-36630
707-98-64410	707-98-39700	707-98-66410
707-98-64420	707-98-37680	707-98-56210
707-98-64450	707-98-64450	707-98-56600
707-98-25910	707-98-36700	707-98-56610
707-99-64150	707-99-77250	707-51-95650
707-99-64152	707-99-77300	707-98-26441

5. FAQ

Q: Which construction machine does part number 707-44-70070 fit for?
A: Part number 707-44-70070 piston seal ring is matched for excavator arm hydraulic cylinder.

Q: What is the part name and classification of component 707-44-70070?
A: The part name of 707-44-70070 is piston seal ring and it belongs to piston seal ring category.

Q: What materials are adopted for manufacturing this piston seal ring?
A: It uses bronze filled PTFE sliding layer with FKM rubber energizer for oil resistance.

Q: What core function does this piston seal ring perform in hydraulic cylinder?
A: It stops internal hydraulic oil bypass between piston and cylinder wall to sustain cylinder pushing force.

Q: Where is this piston seal ring mounted inside the hydraulic cylinder?
A: It is fitted into the precision groove on the piston of excavator arm cylinder.

Q: What benefits can FKM rubber bring to this sealing assembly?
A: FKM offers outstanding resistance to high temperature and aged hydraulic oil.

Q: What precaution should be taken during on-site installation?
A: Lubricate the seal ring with clean hydraulic oil before assembly to prevent tearing.

Q: What symptom will occur once this piston seal ring is worn out?
A: The arm will move slowly and cannot hold load steadily under digging operation.

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