Guangzhou Opal Machinery Parts Operation Department vivianwenwen8@gmail.com 86-135-33728134
Product Details
Place of Origin: China
Brand Name: OUB
Certification: ISO9001
Model Number: 707-44-90070
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
Part No.:: |
707-44-90070 |
Part Name:: |
SEAL RING |
Model: |
D50P-18 |
Machine: |
Excavator |
Material: |
NBR |
Color: |
BLACK |
Part No.:: |
707-44-90070 |
Part Name:: |
SEAL RING |
Model: |
D50P-18 |
Machine: |
Excavator |
Material: |
NBR |
Color: |
BLACK |
1. Quick Details of seal 707-44-90070:
| Part NO. | 707-44-90070 |
| Machine | Excavator |
| Size | OEM |
| Material | NBR |
| Type | RING SEAL |
2. 707-44-90070 parts on group :
![]()
| NO. | PART NO. | PRAT NAME | QTY |
| 1 | 707-12-90250 | CYLINDER | 1 |
| 2 | 234-63-13080 | BUSHING | 2 |
| 3 | 707-29-90821 | HEAD,CYLINDER | 1 |
| 4 | 07177-04530 | BUSHING | 1 |
| 5 | 707-51-45210 | PACKING,ROD (KIT) | 1 |
| 6 | 112-63-15370 | SEAL,DUST (KIT) | 1 |
| 7 | 07179-12057 | RING,SNAP | 1 |
| 8 | 07000-12085 | O-RING (KIT) | 1 |
| 9 | 07146-02086 | RING,BACK-UP (KIT) | 1 |
| 10 | 07000-12090 | O-RING (KIT) | 1 |
| 11 | 721-58-45490 | ROD,PISTON | 1 |
| 12 | 707-46-05130 | BUSHING | 1 |
| 13 | 04065-07525 | RING,SNAP | 2 |
| 14 | 707-36-90930 | PISTON | 1 |
| 15 | 07156-00912 | RING,WEAR (KIT) | 1 |
| 16 | 707-44-90070 | RING,PISTON (KIT) | 1 |
| 17 | 707-67-30030 | NUT | 1 |
| 18 | 02782-50315 | ELBOW | 2 |
| 19 | 07002-12034 | O-RING (KIT) | 2 |
| 20 | 07040-11007 | PLUG | 1 |
| 21 | 07002-11023 | O-RING (KIT) | 2 |
| 22 | 02896-11009 | O-RING (KIT) | 2 |
3. 707-44-90070 picture:
![]()
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 | 707-99-67310 | 707-98-67110 |
| 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 can part number 707-44-90070 be applied to?
A: Part number 707-44-90070 piston seal ring is made for excavator swing hydraulic cylinder.
Q: What is the part name and product category of component 707-44-90070?
A: The part name of 707-44-90070 is piston seal ring and it belongs to piston seal ring category.
Q: What raw materials are used for this piston seal ring?
A: It adopts bronze filled PTFE sliding layer matched with NBR rubber energizer.
Q: What is the primary sealing task of this piston seal ring?
A: It isolates hydraulic oil on two sides of piston to maintain stable swing torque output.
Q: Where do we mount this piston seal ring in the hydraulic assembly?
A: It is seated inside the piston groove of excavator swing hydraulic cylinder.
Q: What characteristic does bronze filled PTFE provide for this seal?
A: It delivers low friction and strong extrusion resistance under frequent reciprocating motion.
Q: What preparation work should be done before installing this seal ring?
A: Clean all dirt and metal debris from piston groove to prevent premature seal wear.
Q: What malfunction sign will show up once this piston seal ring fails?
A: The swing movement will become weak and the rotating speed will be unstable.
Oil seals,Hydraulic Seals, Cylinders Seal Kits, And More