Eccentric Shafts

Name: Eccentric Shafts
Brand: ANRANST

Converts rotation into eccentric motion of the moving jaw and transmits crushing loads.

Eccentric Shafts (Eccentric Shaft)— Jaw Crushers Wear part, position 14.

Installation and Function

Installation Position	Passes through the top of the moving jaw, position 22 in the layout, and connects to the bearings, flywheel and belt pulley.
Main Function	Converts rotation into eccentric motion of the moving jaw and transmits crushing loads.
Replacement Frequency	Low replacement frequency; stop and assess if cracks, journal wear, bending, loose fits or abnormal vibration are detected.

Materials and Mechanical Properties

Item	Details
Material Options	Forged, quenched and tempered alloy steel such as 42CrMo or AISI 4140/4340, as specified in the OEM drawing
Typical Properties and Acceptance Criteria	A fatigue-critical part with serious consequences if it fails. Beyond tensile and yield strength, control the forging reduction ratio, grain size, quench and temper uniformity, low- and room-temperature impact toughness, ultrasonic and magnetic particle inspection, journal surface finish, fillets and coaxiality. Local surface hardening requires assessment of residual stresses and core toughness.
Principal Failure Mechanism	Abrasion, fatigue, corrosion or assembly damage; use photographs of failed parts from the site to identify the dominant mechanism

Material and Design Considerations

Identify material hardness, particle size, abrasiveness, moisture, temperature, pH, impact and tramp material;
High hardness does not replace core toughness, fatigue strength, corrosion resistance or high-temperature performance;
For composite, hardfaced, ceramic and elastomer designs, assess substrate bonding, edge protection, fastening and maintainability;
For parts that mate with shafts, gears, seals, roll surfaces or housings, control fits, tolerances, surface finish and assembly clearances together;
Assess material upgrades using cumulative throughput, dimensional wear, failure modes, product quality and downtime costs.

Required Ordering / RFQ Information

Equipment manufacturer, machine model, serial number, part number and latest drawing revision;
Part dimensions, unit weight, key tolerances, assembly and fastening method;
Current material, chemical composition, heat treatment, hardness and mechanical property reports;
Processed material, maximum particle size, hardness/abrasiveness, moisture and tramp material records;
Speed, load, temperature, pressure, process medium chemistry and continuous operating time;
Failure photographs, wear measurements, crack/fracture locations and current service life;

Materials and values are for preliminary engineering selection. Final chemical composition, heat treatment, hardness and dimensional tolerances must follow the OEM drawings and technical agreement.

Related Equipment and Materials

Equipment, Materials and OEM Identification

Use these links for preliminary selection. Confirm the complete model, serial or drawing number, drawing revision, dimensions and actual operating conditions to establish fit.

Independent aftermarket information. OEM names and trademarks belong to their respective owners and do not imply authorization, affiliation or endorsement. Confirm the series, complete model, serial or drawing number, drawings and operating conditions before manufacture.

Discuss Your Eccentric Shafts and Request a Quote

Provide the machine model, operating conditions and target service life so our engineers can recommend materials and prepare a quotation.

Send Operating Details for a Quote

Or contact us directly: +86 156 3797 3199
zzx@anranst.com

Manufacturing Services in China

From Technical Assessment to Finished-Part Delivery

ANRANST provides customers worldwide with engineering assessment, production at certified foundries to drawing, quality control and finished-part delivery for custom wear parts and industrial spares, with scope to support other custom industrial parts.

Drawing and Engineering Review

We review mating surfaces and interface dimensions and assess material, heat treatment and manufacturing feasibility.

Material and Heat-Treatment Specification

Material grades and heat-treatment processes are specified order by order, confirmed in the technical agreement and tracked through production.

Quality Control

Drawing confirmation, material and process control, production tracking, inspection and acceptance coordination.

Finished-Part Delivery

We coordinate manufacturing, quality confirmation, packaging and delivery of complete finished parts in a workable, closed-loop supply process.

Provide the existing model, drawings, drawing or part numbers, materials or operating conditions so we can identify the appropriate technical review and supply route.

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