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242-4274 2424274 Hydraulic Arm Crowd Cylinder Repair Seal Kit for Medium Crawler Mining Excavator 966H 972H

Name: 242-4274 2424274 Hydraulic Arm Crowd Cylinder Repair Seal Kit for Medium Crawler Mining Excavator 966H 972H
Brand: Guangzhou Opal Machinery Parts Operation Department
SKU: 242-4274
Price: 7.00 USD
Availability: InStock

Product Details

Place of Origin: China

Brand Name: OUB

Certification: ISO9001

Model Number: 242-4274

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

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Product Details

Product Description

Product Details

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                                                                                                                                                                                                                                                966H 972H excavator hydraulic cylinder seal kit, medium crawler mining excavator repair seals, 242-4274 hydraulic arm crowd cylinder kit
                              

Part No.::	242-4274	Part Name::	SEAL KIT
Model:	304.5 305.5 306	Machine:	Small Hydraulic Excavator
Material:	PU	Color:	BLACK,BROWN,WHITE

Part No.::	242-4274
Part Name::	SEAL KIT
Model:	304.5 305.5 306
Machine:	Small Hydraulic Excavator
Material:	PU
Color:	BLACK,BROWN,WHITE

Product Description

1. Quick Details of seal 242-4274:

Part NO.	242-4274
Machine	Small hydraulic excavator
Size	OEM
Material	PU
Oil seal type	SEAL KIT

2. 242-4274 picture :

242-4274 2424274 Hydraulic Arm Crowd Cylinder Repair Seal Kit for Medium Crawler Mining Excavator 966H 972H 0
3. Service part number :

PART NO.	PART NO.	Part NO.
6V5059	6V-8397	4J5351
6J7167	277-9940	8C5175
8200506	152-3968	1H7339
5J8200	326-7289	8T9528
6J6917	6V5393	5K5129
2J1411	5P4076	6J3134
5J8300	1237272	2N5243
6J6919	9M2092	5P8211
5J8150	4J5267	2M1309
5J8175	6V5049	6F6673
5J8200	1H9696	8M5249

4. FAQtrfg

Q: What four differentiated raw materials compose all sealing spare parts inside this swing cylinder repair kit?
A: The whole kit is constructed from high abrasion-resistant cast PU main dynamic seals, talc mineral modified anti-extrusion PTFE back-up rings, hydrolysis-stable HNBR rubber static sealing pieces and cotton woven cloth resin-soaked wear-resistant guide rings for piston supporting.

Q: What is the original natural color of each material seal without extra artificial pigment or surface coating?
A: Cast PU sealing rings are clean ivory white, talc-filled PTFE back-up parts are pale ash grey, HNBR rubber fittings are uniform matte black, cotton base fabric wear rings are light ginger brown tone.

Q: What core sealing task does cast PU finish inside mini excavator swing motor cylinder?
A: As the primary reciprocating sealing component, cast PU depends on outstanding compression resilience to block high-pressure hydraulic oil leakage when swing cylinder drives upper machine body to rotate left and right continuously during frequent spot excavation and material shifting on tight construction plots.

Q: Why is talc compounded PTFE matched as auxiliary back-up ring behind PU main seal for swing cylinder structure?
A: It fills tiny assembly clearances in piston grooves and effectively prevents soft PU seal edge from being squeezed and ruptured under instant hydraulic pressure surge generated by sudden swing rotation load change when mini digger hits hard underground stones or compact soil.
Q: What unique functional merits make HNBR superior over ordinary NBR rubber for swing cylinder static sealing positions?
A: HNBR owns excellent anti-hydrolysis and anti-ageing performance, keeping stable sealing tightness after long-time contact with aged high-temperature hydraulic fluid and intermittent muddy water splashing at outdoor open-air construction environments all year round.

Q: At which fixed static installation spots of swing motor cylinder do HNBR rubber seals get assembled?
A: HNBR components are mainly fitted for flange sealing of swing cylinder end caps and threaded connector gaps of auxiliary oil passages, stopping invisible slow oil seepage at stationary assembly joints exposed to outdoor dust and moisture.

Q: What supportive function can cotton base resin impregnated wear fabric realize for swing cylinder reciprocating piston?
A: It bears partial lateral radial load of moving piston during swing rotation stroke, corrects minor piston offset and lowers metal friction loss between piston outer circle and inner cylinder bore wall to extend overall seal service cycle.

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242-4274 2424274 Hydraulic Arm Crowd Cylinder Repair Seal Kit for Medium Crawler Mining Excavator 966H 972H

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