Specification	Description
Material & Alloy	Main bushing: brass alloy; Outer/head bushing: steel
Hardness	HB 60–80 (for brass)
Standard Dimensions	Height: 385 mm; Inner/Outer diameter: model-dependent (e.g., HP300: ID 200–300 mm); Taper ratio: 1:12
Approximate Weight	214 kg (for 36-inch model)
Wear Resistance	High (30% longer lifespan compared to standard); resistant to mechanical stress, corrosion, and high temperatures
Processing Type	Raw casting (from brass ingot, not scrap) + precision machining; pre-lubricated for immediate installation; heat-treated for durability

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Feature	Detailed Specifications
Part Name	Hydrocone Eccentric Bushing
Applicable Models	H25, H36, H45, H51, H66, H80 and S series (Svedala), CH/CS models
Base Material	Forged MO40 steel (SAE 8620 or equivalent) with heat treatment
High-Quality Alternative Material	Alloy steel 1.7131 (16MnCr5) with high carbon content
Surface Hardness	55–60 HRC after nitriding or carbonitriding
Hardening Layer Thickness	Minimum 2 mm at contact surface
Approximate Weight	120–480 kg (depending on hydrocone size)
Common Part Numbers	442.0481-01 (H4800), 442.9409-01 (H6800), 452.1401-001 (H8800), etc.
Inner Diameter (shaft)	160–320 mm (model-dependent)
Outer Diameter	350–650 mm
Service Life	4,000–8,000 operating hours (depends on conditions and rock type)
Warranty	6 months replacement for abnormal breakage or cracking
Availability	All sizes in stock; urgent production possible in 7–10 days
Approx. Price (2025)	38 million IRR (H36) – 165 million IRR (H80); contact for updated pricing

Applications of Hydrocone Eccentric Bushing

Primary Function:
Adjusting the eccentricity of the main shaft in a Hydrocone crusher to control crushing speed, output particle size (by setting the mantle–concave gap), and increase capacity (processing more rock per cycle).

Industries:
Stone mining, sand and gravel production, road construction, and mineral industries (secondary crushing of hard rocks).

Compatibility:
Novincsm Hydrocones, Symons/Metso/Sandvik models; suitable for production lines with hydraulic lubrication systems.

Advantages of Hydrocone Eccentric Bushing

Smooth Eccentric Motion: Ensures high efficiency with reduced vibration and noise.
Extended Service Life: Up to 30% longer lifespan due to reduced friction and maintenance needs.
Easy Adjustment: Simple resizing allows speed and output tuning; quick installation with pre-lubrication.
Excellent Wear and Corrosion Resistance: Minimizes waste and ensures uniform product quality.
Cost-Effective: Locally manufactured in Iran with OEM-level quality.

Disadvantages of Hydrocone Eccentric Bushing

Sensitive to High Oil Temperatures (>150°C): Efficiency decreases; requires cooling system.
Consumable Component: Periodic replacement needed every 6–12 months under heavy-duty operation.
Heavy Weight: Challenging transport; precise machining required after casting.
Older Models: Limited clearance may cause shaft damage.

Installation and Maintenance Guidelines

Installation:

Clean the shaft bore thoroughly and apply suitable lubricant.
Use proper installation tools; check clearance (0.10–0.15 mm) after installation.
Adjust eccentricity with a hydraulic jack.

Maintenance:

Regular lubrication via spiral channels.
Monitor operating temperature (<150°C).
Avoid overload; replace if wear exceeds 5 mm.

Transport:

Up to 500 kg via pickup (1–2 units).
Up to 20 tons via trailer (10+ units).

Frequently Asked Questions (FAQ)

What is a Hydrocone eccentric bushing and its function?
It is the primary component driving the main shaft of a Hydrocone crusher, generating eccentric motion for rock crushing.

When should the eccentric bushing be replaced?
Replace when clearance exceeds 3–5 mm, abnormal noise occurs, or cracks/breakage are observed.

What is the difference between forged and cast bushings?
Forged bushings offer up to three times longer life and higher resistance to impact and fatigue. Cast bushings are recommended only for emergency use.

Do Iranian eccentric bushings have reliable quality?
Yes. Novincsm bushings are made from MO40 forged steel using 5-axis CNC machining and have been benchmarked against Sandvik standards.

How to determine the size of an eccentric bushing?
The technical number is stamped on the bushing, or you can measure the shaft inner diameter and bushing outer diameter and match with the catalog.

Are second-hand eccentric bushings reliable?
Only if the hardening layer is thicker than 1.5 mm and no cracks exist. Novincsm provides tested second-hand bushings with warranty.

Why does an eccentric bushing burn or crack?
Main causes include improper lubrication, dust ingress, overload, or use of low-quality bushings.

How long does it take to replace an eccentric bushing?
With Novincsm’s experienced team: 8–16 hours, depending on machine size.

Do H and S series Hydrocone eccentric bushings differ?
Yes. The S series (Svedala) has slightly different dimensions and is not directly interchangeable with the H series.

How much does a Hydrocone eccentric bushing cost?
For accurate, up-to-date pricing (subject to currency and steel fluctuations), contact 09122501585 or request a quote on the website.