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9X-2858 CAT Ring for for Wood Drilling, Coal Mining

This retaining ring (Model 9X-2858) is a key fastening component for mining drilling rigs and heavy construction machinery. Stamped from premium steel and heat-treated for superior elasticity and hardness, it features an open annular design that enables quick snap-fit installation into grooves to axially secure bearings, shafts and other mechanical parts. The black oxidation finish delivers reliable corrosion resistance, while the precision-stamped profile ensures a tight, stable fit even in the high-vibration operating conditions of mining sites. For corrosive environments, galvanized or stainless steel-plated versions are available, making it an essential spare part for maintaining the structural stability of mechanical assemblies.
Availability:
  • 9X-2858

  • CAT

  • 9X-2858

The Model 9X-2858 is a critical fastening component engineered for mining drilling rigs and heavy construction machinery. Stamped from premium spring steel and heat-treated for superior elasticity and hardness, it features an open annular design that enables quick snap-fit installation into grooves. This ring is designed to axially secure bearings, shafts, and other mechanical parts, serving as a core safety component that guarantees structural stability under extreme operating conditions.

Key Features & Advantages

  • Premium Material & Heat Treatment Enhancement:

    Manufactured from high-grade spring steel and subjected to a rigorous heat treatment process (quenching and medium-temperature tempering), this retaining ring offers exceptional yield strength and elastic limits. It resists plastic deformation (such as stretching or losing shape) even under prolonged compressive or shear stress, ensuring a constant and powerful grip on assembled components.

  • Reliable Axial Locking & Positioning:

    Designed to fit precisely into shaft or housing grooves, it provides a rigid mechanical stop. It effectively resists the massive axial thrust common in mining equipment, preventing gear misalignment and bearing dislodgement, thereby ensuring continuous and safe power transmission.

  • Precision Stamping & Stable Fit:

    Produced using high-precision stamping dies, the ring maintains excellent dimensional accuracy and flatness on its outer diameter, inner diameter, and sides. This precision profile ensures a tight fit against the bottom of the groove, eliminating play and preventing noise or loosening even under the high-frequency vibrations of drill rigs.

  • Black Oxide Corrosion Protection:

    The standard finish is black oxide treatment, forming a dense layer of magnetite (Fe₃O₄). This coating not only provides a professional appearance but also effectively isolates air and moisture, preventing rust during storage and operation in humid open-pit mine environments.

  • Customized Corrosion Solutions:

    For highly corrosive environments such as acidic underground water or coastal salt spray, we offer galvanized or stainless steel versions. These specialized material options provide enhanced corrosion resistance to meet the diverse demands of different mining sites.

Technical Specifications

Parameter

Specification

Model

9X-2858

Type

External Retaining Ring (Snap Ring)

Material

Premium Spring Steel (65Mn / 60Si2MnA)

Finish

Black Oxide (Standard), Zinc Plated / Stainless Steel (Optional)

Installation

Snap-In (Requires Snap Ring Pliers)

Load Capacity

High Axial Load & Impact Load

Typical Applications

  • Mining Drill Rigs: Bearing locks for rotary reducer output shafts and feed mechanism lead screws.

  • Construction Machinery: Fixing rings for excavator slewing ring internal gears and hydraulic pump shaft end plates.

  • Heavy-Duty Drives: Axial limiters for intermediate shafts in large gearboxes and couplings.

  • Industrial Equipment: Mechanical assemblies requiring high vibration and heavy-load resistance.

Quality Assurance & Service

We strictly adhere to industrial fastener production standards. Every batch of 9X-2858 rings undergoes elasticity and hardness sampling tests to ensure reliability in extreme conditions. As an indispensable critical spare part, it effectively reduces your equipment maintenance costs and prevents major downtime caused by the failure of small components.

Installation Recommendation:

Please use appropriately sized professional snap ring pliers for installation. Ensure the ring is fully seated at the root of the groove; do not forcibly over-expand the ring to avoid damaging its material elasticity. After installation, manually rotate the assembly to confirm the ring is securely locked in place.


SANTO adopts innovative thinking to develop tailored technical solutions for different ore properties, providing domestic and international mining enterprises with integrated solutions covering drilling, shovel loading, transportation, and grinding processes.
Our technologies and products have been widely adopted by mining operations across China, Russia, Dubai, Indonesia, Vietnam, Myanmar, and other countries and regions worldwide.
We specialize in manufacturing and supplying a comprehensive range of mining and drilling equipment, including:
  • FEED BEAM

  • ROCK DRILL PARTS

  • AIR COMPRESSOR

  • PUMP

  • DTH DRILLING TOOLS

  • TOP HAMMER

  • PDC DRILL BITS

  • EXPLORATION (CORE DRILLING TOOLS)

  • ROTARY DRILLING TOOLS

  • RAISE DRILLING TOOLS

  • GEOTECHNICAL ENGINEERING TECHNOLOGY

  • HAND TOOLS

Our product range covers compatible parts and solutions for leading international brands, including Atlas Copco, CAT, Epiroc, Normet, Komatsu, Sandvik, Ingersoll Rand, and Cummins.
We are committed to delivering not only high-quality products but also reliable, worry-free services:
  • Customized Packaging Solutions:

    All products are protected with heavy-duty, shock-resistant packaging (including wooden crates, steel frames, and anti-corrosion wrapping) to ensure safe arrival even under long-distance and harsh transport conditions.

  • Flexible & Global Logistics:

    We support multiple shipping methods, including sea freight, air freight, and rail transport, and offer flexible terms such as FOB, CIF, and DAP to meet your delivery schedule and cost requirements.

  • Fast Lead Times & Order Support:

    With a large inventory of standard parts and efficient production scheduling, we can respond quickly to urgent orders while maintaining consistent quality.

  • After-Sales & Technical Support:

    Our dedicated team provides professional technical consultation, installation guidance, and after-sales service to help you maximize equipment performance and minimize downtime.

We have products, such as:

3217998510DIRECTION VALVE
9106973960CONTROLLER,ROTARY PROP.
2650349810TEE ADP
9106972243JOYSTICK
2657146045ENCODER, OPTICAL SHAFT
5580002338FILTER
2657646127CARRIAGE,SHEAVEASSEMBLY
5580004898CRADLE
2658607696MOTOR,M7,KEYED
303-7504Steering wheel
6J-1144BEARING
6E-3524pump
454-0277Stopper
541-8043Cylinder
9M-1328BEARING
307-7342Final drive assembly
9W4493blade
2459951track roller
1926445hydraulic cylinder
001021-004Bushing
001022-001Shaft
001110-008Seal oil
007947-054KIT SEAL
013487-001Valve
022893-001SWITCH, TEMPERATURE
034562-051O-RING ADJUSTING SCREW
007947-073sw comp oil filter bypass 30 psi
001479-058GAUGE
001022-056YOKE, Shaft


Q:What is your terms of packing?
A:Generally, we pack our goods in neutral white boxes and brown cartons. If you have legaly registered patent ,we can pack the goods inyour branded boxes after getting your authorization letters.


Q:What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We will show you the photos of the products and packages before you pay the balance.

Q: What is your terms of delivery?

A: EXW, FOB, CFR, CIF, DDU, FCA.


Q:How about your delivery time?
A: Generally. it wlltake 5 to 12 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.


Q:Can you guarantee that the goods are original?

A:Yes, we fully guarantee that the goods are original and you can inspect them carefully when they arrive at your address.


Q:Do you test all your goods before delivery?
A:Yes, we have 100% test before delivery.
Q:How do you make our business long-term and good relationship?

1. We keep good quality and competitive price to ensure our customers benefit ;

2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.


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Jinmis.wen@santoenergy.com
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