Everdigm EHB Series Guide Bushing Set For Chisel Alignment And Front Head Wear Control

Product Introduction

The Everdigm EHB Series Guide Bushing Set For Chisel Alignment And Front Head Wear Control is designed for excavator-mounted hydraulic breaker hammers. It is suitable for Everdigm EHB Series hydraulic breakers, including common models such as EHB02, EHB04, EHB05, EHB13, EHB17, EHB20, EHB25, EHB30, EHB40, and EHB50.

The bushing set normally includes the inner bush and outer bush, which are important wear parts inside the hydraulic breaker front head system. Their main function is to guide the breaker chisel, control tool clearance, reduce side movement, and protect the front head from abnormal wear. During demolition, road repair, concrete breaking, trenching, and rock breaking, the chisel moves repeatedly under strong impact force. Without proper bushing support, the tool may shake, tilt, or wear unevenly.

When the inner bush or outer bush becomes worn, loose, cracked, or out of tolerance, the hydraulic breaker may show weak impact, abnormal tool movement, faster chisel wear, rod pin damage, front head wear, piston impact problems, and higher repair costs. Replacing worn bushings in time helps restore tool alignment and keeps the breaker working more smoothly.

This product is an aftermarket replacement inner bush and outer bush set compatible with Everdigm EHB Series hydraulic breakers. The Everdigm name and EHB model references are used only for compatibility identification.

Material

Our Everdigm EHB Series inner bush and outer bush are commonly produced from selected wear-resistant alloy steel or customer-specified material according to the breaker model and working condition. The material needs good hardness, toughness, impact resistance, and abrasion resistance.

Hydraulic breaker bushings work in a harsh environment. They contact the chisel directly and are exposed to impact vibration, dust, stone particles, concrete fragments, and high working pressure. If the material is too soft, the inner diameter may wear quickly and create excessive clearance. If the material is too brittle, the bushing may crack under repeated impact.

Heat treatment is used to improve wear resistance and service stability. A good bushing should have enough hardness to resist friction while maintaining enough toughness to handle shock load. Accurate material control helps the bushing support stable chisel movement and longer service life.

Product Features

The Everdigm EHB Series guide bushing set is designed for chisel alignment and clearance control. The inner diameter, outer diameter, length, groove position, fitting tolerance, and surface finish are important for correct installation and stable operation.

The inner bush directly supports the chisel movement. It helps keep the tool centered and reduces side load during impact. The outer bush supports the guide structure and helps protect the front head body. When the inner bush and outer bush work together correctly, the hydraulic breaker can maintain better striking direction and reduce unnecessary stress on the rod pin, chisel shank, piston, and front head.

Precision machining is important for bushing performance. If the bush is too tight, the chisel may not move smoothly. If the bush is too loose, the chisel may shake and damage the retaining system. Correct clearance helps improve impact efficiency and reduces the risk of repeated repair.

The bushing set can be supplied for regular maintenance, urgent repair, breaker rebuild projects, and spare parts stock. It can also be ordered together with chisels, pistons, seal kits, diaphragms, rod pins, through bolts, side bolts, front heads, back heads, cylinders, buffers, and wear plates.

Main Advantages

The main advantage of the Everdigm EHB Series inner bush and outer bush set is that it helps restore the correct working clearance between the chisel and front head. This is important for maintaining breaker stability and protecting expensive internal parts.

For contractors working on road repair, concrete breaking, trenching, and municipal maintenance, a stable bushing set can reduce tool shaking and improve working accuracy. For repair workshops, replacing bushings before the front head is seriously damaged can reduce repair cost and improve service quality.

A worn bushing may look like a small problem, but it can create larger damage if ignored. Excessive clearance can cause chisel shank wear, retaining pin groove damage, front head oval wear, and unstable piston impact. Timely bushing replacement is a practical way to extend the service life of the hydraulic breaker.

For spare parts dealers and equipment rental companies, bushings are fast-moving wear parts. Keeping Everdigm EHB Series inner bushes and outer bushes in stock can help customers complete repairs faster and reduce machine downtime.

Why Choose Us

Customers choose us because we focus on hydraulic breaker aftermarket spare parts and model matching support. We supply inner bushes, outer bushes, breaker chisels, pistons, seal kits, diaphragms, rod pins, through bolts, side bolts, front heads, back heads, cylinders, buffers, wear plates, and other hydraulic breaker repair parts.

For Everdigm EHB Series bushing sets, we can help customers confirm the correct model before production or shipment. If the customer is not sure about the bushing specification, they can provide the breaker model, chisel diameter, old bushing dimensions, photos, drawings, samples, or part numbers. We can check the matching details and reduce wrong orders.

We support repair workshops, construction machinery parts dealers, equipment rental companies, contractors, municipal maintenance teams, quarry operators, and machinery service suppliers. Customization is available for material, hardness, inner diameter, outer diameter, groove position, surface treatment, marking, neutral packaging, customer labels, and export packing.

Applications

The Everdigm EHB Series Guide Bushing Set is widely used in:

• Hydraulic breaker front head repair

• Chisel alignment and clearance control

• Excavator hammer bushing replacement

• Road repair and concrete breaking equipment service

• Trenching and municipal construction tools

• Hydraulic breaker rebuild projects

• Repair workshop spare parts stock

• Equipment rental fleet maintenance

Parameter Table

FAQ

Q1: Are these bushings original Everdigm parts?
No. These are aftermarket replacement inner bushes and outer bushes compatible with Everdigm EHB Series hydraulic breakers. The Everdigm name and EHB model references are used only for compatibility identification.

Q2: What is the function of the inner bush and outer bush?
The inner bush and outer bush guide the breaker chisel, control tool clearance, reduce abnormal shaking, and protect the front head from excessive wear.

Q3: When should I replace the bushing set?
The bushing set should be replaced when the chisel shakes too much, the inner diameter is worn, the tool clearance is too large, the rod pin wears quickly, or the front head shows abnormal wear.

Q4: What material is used for the bushings?
The bushings are commonly made from wear-resistant alloy steel. Material, hardness, and surface treatment can be adjusted according to the breaker model and customer requirements.

Q5: How can I confirm the correct bushing size?
You can provide the breaker model, chisel diameter, old bushing dimensions, photos, drawings, samples, or part numbers. We can help confirm the correct item before production or shipment.

Q6: Can I order bushings with other hydraulic breaker parts?
Yes. Inner bushes and outer bushes can be supplied together with chisels, pistons, seal kits, diaphragms, rod pins, through bolts, side bolts, front heads, back heads, cylinders, buffers, and wear plates.