Guangzhou Opal Machinery Parts Operation Department
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | >10000PCS |
| Delivery Time | Within 5-15 days after getting your desposit |
| Packaging Details | PP Bag Inside.outer is carton with film wrapped. |
| PART NO. | 704-28-02710 705-40-80760 |
| Model | PC200-3/5 PC220-3/5 PW200-1 WA800-1 |
| Material | Rubber, NBR70 NBR90 FKM75 |
| Hardness | Commonly 70 90 shore A |
| Feature | Sealing Performance |
| Performance | Corrosion Temperature Wear High Pressure |
| Size | Standard or Customized |
| Temperature | HNBR -35-+135 |
| Brand Name | OUB |
| Model Number | O-Ring |
| Certification | ISO9001 |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | >10000PCS |
| Delivery Time | Within 5-15 days after getting your desposit | Packaging Details | PP Bag Inside.outer is carton with film wrapped. |
| PART NO. | 704-28-02710 705-40-80760 | Model | PC200-3/5 PC220-3/5 PW200-1 WA800-1 |
| Material | Rubber, NBR70 NBR90 FKM75 | Hardness | Commonly 70 90 shore A |
| Feature | Sealing Performance | Performance | Corrosion Temperature Wear High Pressure |
| Size | Standard or Customized | Temperature | HNBR -35-+135 |
| Brand Name | OUB | Model Number | O-Ring |
| Certification | ISO9001 | Place of Origin | China |
| High Light | 704-28-02710 O Ring Seals ，705-40-80760 O Ring Seals ，PW200-1 O Ring Seals | ||
704-28-02710 705-40-80760 FOR KOMATSU O-Ring :
| Name | Code | Characteristics | Temperature |
| NitrileButadiene Rubber | NBR | Good mechanical technological parameters,high abrasion resistance,low gas permeability and good resistance to mineral oil based lubricating oils and greases,hydraulic oils. | －30~+120 |
| Fluoroelastomer | FKM | FKM is fluorocarbon elastomer with high thermal and chemical resistance.lts broad spectrum of resistance and relatively good compression set, even at high temperatures. | －20~+200 |
| Polyurethane | PU | PU materials display higher mechanical strength,high abrasion,wear and extrusion resistance,high pressure load capacity ,as well as a high tear and elongation at break resistance.Also have good flexibility and very good ageing and ozone resistance. | －45~+110 |
| Silicone Rubber | VMQ | VMQ shows excellent heat resistance,cold flexibility,dielectric properties and especially good resistance to weather ,ozone and UV rays. | －60~+230 |
704-28-02710 O RING PART NO.OF KOMATSU
| Part No. | Parts name | Weight | Part No. | Parts name | Weight |
| 704-28-02710 | BOLT Komatsu | 0.013 kg. | 706-46-53260 | PLUG Komatsu | 0.03 kg. |
| 01010-31260 | BOLT Komatsu | 0.069 kg. | 708-25-04012 | PUMP ASS'Y Komatsu | 215 kg. |
| 01602-00825 | WASHER,SPRING Komatsu | 0.004 kg. | 708-25-04013 | PUMP ASS'Y Komatsu | 215 kg. |
| 01643-31232 | WASHER Komatsu | 0.027 kg. | 708-25-04014 | PUMP ASS'Y Komatsu | 215 kg. |
| 01643-50823 | WASHER Komatsu | 0.01 kg. | 708-25-04051 | PUMP ASS'Y Komatsu | 117 kg. |
| 04020-00616 | PIN,DOWEL Komatsu | 0.004 kg. | 708-25-04111 | PUMP SUB ASS'Y Komatsu | |
| 07000-02012 | O-RING Komatsu | 0.001 kg. | 708-25-04112 | PUMP SUB ASS'Y Komatsu | |
| 07000-02021 | O-RING Komatsu | 0.01 kg. | 708-25-04151 | PUMP SUB ASS'Y Komatsu | |
| 07002-01023 | O-RING Komatsu | 0.025 kg. | 708-25-04311 | RELIEF VALVE ASS'Y | 0.303 kg. |
| 07002-01423 | O-RING Komatsu | 0.001 kg. | 708-25-04520 | SERVO VALVE ASS'Y,FRONT | 13 kg. |
| 07002-02034 | O-RING Komatsu | 0.94 kg. | 708-25-04521 | SERVO VALVE ASS'Y,FRONT | 13 kg. |
| 07002-02434 | O-RING Komatsu | 0.01 kg. | 708-25-04612 | SERVO VALVE ASS'Y,REAR | 17.9 kg. |
| 07040-11007 | PLUG Komatsu | 0.014 kg. | 708-25-04613 | SERVO VALVE ASS'Y,REAR | 17.9 kg. |
| 07102-20404 | HOSE Komatsu OEM | 0.86 kg. | 708-25-19120 | FLANGE Komatsu | |
| 07235-10422 | ELBOW Komatsu | 0.195 kg. | 708-25-19130 | BOLT Komatsu | |
| 20Y-60-X1261 | PUMP GROUP Komatsu | 708-25-19140 | TUBE Komatsu | 0.15 kg. | |
| 704-24-28230 | PUMP ASS'Y Komatsu | 7.974 kg. | 708-25-19220 | TEE Komatsu | |
| 01010-30820 | O-RING Komatsu | 0.002 kg. | 708-25-32730 | COUPLING Komatsu | |
| 706-46-53180 | BOLT,EYE Komatsu | 0.028 kg. | 720-68-15240 | FILTER Komatsu | 0.003 kg. |
1. The O-ring is an annular seal having an O-shaped cross section, the size of which is determined by the inner diameter ID and the wire diameter CS.
2. O-ring size calculation: outer diameter = inner diameter + 2 x wire diameter (OD = ID + 2x CS).
3. The purpose of using O-ring seals is to prevent leakage and loss of liquids or gases.
4. O-rings are the most commonly used type of seal because of their simplicity, convenience, and small installation space. As long as the groove design and material selection are correct, and the operating conditions are within the temperature range of the rubber material, the seal can have a long-term sealing effect in the static or dynamic seal.
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FAQ
Q1: Why choose you?
A: Why not ?Whether you give me the part number, machine model or picture, I can provide you with complete pictures and quotation.
Q2: To which places have you exported?
A: Around the world. Our team has been committed to this goal.
Q3: What’s your payment terms?
A: We usually accept all kinds of payment terms .Such as T/T,L/C, etc.
Q4: Can I mix different power in one container?
A: Yes ,Different models can be mixed up in one container,even one order.
Q5: Are you trading company or manufacturer?
A:We are trading company and we also have our own factory to produce seals.With more than 20 years of PU manufacturing experience.
Q6: Do you have a minimum order requirement?
A: Small trial order is acceptable.
Q7:What is your main products ?
A:We are specialized in the excavator spare parts, such as control valve ,hydraulic pump, center rotary , travel motor, swing motor, cylider, hydraulic break seal kit and other repair kits. If you need other excavator parts, we also can supply as your requirements.
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2005
Total Annual:
1500000-2500000
Employee Number:
>50
Ecer Certification：
Verified Supplier
Guangzhou OUB Machinery Equipment Co.,Ltd since its inception in 2004, has been engaged in hydraulic seals business of excavators, loaders, bulldozers,breaking hammers and other seals have in-depth study. Through more than 15 years of efforts, OUB has accumulated a large number of domestic, imported... Guangzhou OUB Machinery Equipment Co.,Ltd since its inception in 2004, has been engaged in hydraulic seals business of excavators, loaders, bulldozers,breaking hammers and other seals have in-depth study. Through more than 15 years of efforts, OUB has accumulated a large number of domestic, imported...
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