47757537 BUSHING CASE

High-Performance Bushing for CASE Heavy Machinery

The 47757537 BUSHING CASE represents a new generation of precision-engineered components for CASE Heavy Machinery, developed to ensure exceptional performance, dimensional stability, and mechanical integrity under extreme operating stress. Designed and supplied by 3GEN Export, this component offers OEM-level reliability for construction, earthmoving, and excavation environments where durability is not optional—it is essential.

Bushings are the unseen protectors of every moving joint in a machine. They absorb shock, minimize friction, and maintain alignment between structural parts under repetitive mechanical loads. The 47757537 BUSHING CASE is built from advanced alloy steel and hardened through a controlled thermal process, enabling CASE machines to perform precise motions and withstand thousands of working hours without loss of accuracy or stability.

Technical Overview and Specifications

Material Composition and Manufacturing Process

• Base Material: Heat-treated, high-carbon chromium steel for maximum load resistance.

• Hardness Rating: 58 – 62 HRC across the working surface.

• Heat Treatment: Multi-stage induction hardening followed by oil quenching and tempering.

• Surface Finish: Micro-ground and polished (Ra ≤ 0.8 µm) to achieve ultra-low friction.

• Corrosion Protection: Anti-oxidation coating applied to all external surfaces.

• Lubrication Groove: Precisely machined oil channel with feed hole for uniform grease flow.

Every 47757537 BUSHING CASE is CNC-machined to micron-level precision, ensuring a perfect press-fit into the housing bore. The material composition provides both hardness and elasticity—critical factors that prevent deformation during heavy impacts or side loading.

Dimensional Accuracy

Such precise tolerances guarantee tight mechanical alignment, preventing uneven wear and reducing machine vibration during continuous operation. The result is smoother control and reduced mechanical noise, even after thousands of working cycles.

Load and Performance Characteristics

• Dynamic Load Capacity: > 70 kN

• Static Load Capacity: > 90 kN

• Operating Temperature Range: −45 °C to +180 °C

• Coefficient of Friction: ≤ 0.05 when properly lubricated

• Service Life: 20 % longer than conventional aftermarket bushings

• Maintenance Interval: 250–300 operating hours (standard conditions)

The 47757537 BUSHING CASE stands up to the intense torsional forces and axial loads experienced in large-scale digging and lifting operations. Its structure distributes stress evenly, preventing pitting and elongation while maintaining full contact with mating parts.

Functional Purpose and Applications

Core Function

The 47757537 BUSHING CASE serves as a precision bearing surface that allows rotational or oscillatory motion between two machine elements—such as the boom and stick, loader arm, or bucket linkage. By creating a controlled clearance gap and smooth interface, it:

• Reduces friction and metal-to-metal contact.

• Ensures precise alignment of structural components.

• Prevents galling and deformation under repeated load.

• Minimizes operational noise and vibration.

• Extends lifespan of shafts, pins, and joints.

This part is a crucial link in maintaining the mechanical integrity of heavy-duty assemblies.

Compatible CASE Models

Engineered for wide compatibility, the 47757537 BUSHING CASE fits multiple machines across CASE’s core lineup:

CASE Backhoe Loaders

• CASE 580 N

• CASE 580 Super N

• CASE 590 Super N

• CASE 695 SR

• CASE 570 ST

CASE Wheel Loaders

• CASE 721 F

• CASE 821 G

• CASE 921 G

• CASE 1021 G

CASE Excavators

• CASE CX210 C

• CASE CX250 D

• CASE CX300 D

• CASE CX350 C

CASE Dozers and Graders

• CASE 1150 M Dozer

• CASE 1650 M Dozer

• CASE 856 C Grader

3GEN Export verifies every product batch for model compatibility, ensuring proper seating, lubrication-hole alignment, and dimensional match across all applications.

Engineering and Design Advantages

1. Precision Load Distribution

The inner geometry of the 47757537 BUSHING CASE is optimized to distribute contact loads evenly across the surface area. This engineering design reduces localized pressure points, preventing wear rings and scoring.

2. Reduced Maintenance Requirements

Thanks to its internal lubrication channels, the bushing maintains a consistent grease film during operation. This lowers heat generation, cuts maintenance frequency, and extends the service interval compared to standard designs.

3. Noise and Vibration Control

Vibration damping is built into the geometry, improving the machine’s smoothness during operation. This contributes to longer operator comfort and less fatigue on structural weldments.

4. Corrosion and Dust Resistance

A protective coating and precise sealing at the edges safeguard against contamination from water, mud, or abrasive dust—conditions common on construction and mining sites.

5. Energy Efficiency

By minimizing internal friction, the 47757537 BUSHING CASE reduces parasitic energy losses, improving hydraulic efficiency and lowering overall fuel consumption.

Installation Guidelines

Proper installation ensures long-term reliability. Follow these recommended procedures:

1. Preparation – Clean all mating surfaces; remove rust, grease, and burrs.

2. Lubrication – Apply a thin layer of assembly grease or oil before pressing.

3. Alignment – Match the lubrication hole with the machine’s grease fitting.

4. Press-Fit Installation – Use a hydraulic or mechanical press; do not hammer directly.

5. Post-Installation Check – Confirm smooth rotation and proper grease flow.

Maintenance Best Practices

To achieve the maximum service life of the 47757537 BUSHING CASE, regular care is vital:

• Re-lubricate every 250 hours of normal operation.

• In severe or dusty environments, shorten the interval to 100 hours.

• Inspect for wear or clearance increase at every service interval.

• Replace the bushing if radial clearance exceeds 0.5 mm.

• Always use OEM-approved grease compatible with high-temperature applications.

Following these steps helps maintain full performance and extends the life of adjacent components such as pins, shafts, and cylinders.

Testing and Quality Control

Every 47757537 BUSHING CASE produced under the 3GEN Export manufacturing program undergoes rigorous quality validation, including:

1. Dimensional Inspection: Precision measurement using CMM equipment.

2. Surface Integrity Analysis: Microscopic evaluation for cracks or inclusions.

3. Hardness Verification: Rockwell C tests to confirm proper heat treatment.

4. Lubrication Channel Testing: Airflow and grease-distribution validation.

5. Load Simulation: Hydraulic press testing for deformation resistance.

6. Traceability: Each batch serialized for full production trace records.

This ensures every unit performs consistently and meets the same standard as the original OEM specification.

Environmental Responsibility and Sustainability

3GEN Export integrates sustainability into every manufacturing stage:

• Uses recyclable steel and environmentally friendly cutting fluids.

• Minimizes waste through CNC optimization.

• Packages using biodegradable, shock-absorbing materials.

• Reduces carbon footprint via consolidated global shipping networks.

Thus, each 47757537 BUSHING CASE not only supports machinery reliability but also contributes to cleaner, more sustainable industrial practices.

Why Choose 3GEN Export for Your CASE Parts

OEM-Grade Engineering

All parts, including the 47757537 BUSHING CASE, are produced according to OEM specifications, ensuring perfect fit and unmatched performance.

Global Delivery in 5 Working Days

3GEN Export guarantees worldwide dispatch and delivery within five business days, backed by efficient logistics and tracking.

Warranty and Support

• 1-Year Manufacturer Warranty

• 24/7 Technical Assistance

• Complete After-Sales Service

Inclusive Pricing

All shipments include transportation and insurance, allowing customers to plan costs without hidden fees.

Typical Use Cases

• Pivot points on excavator arms

• Loader boom hinges

• Backhoe swing frames

• Hydraulic cylinder mounts

• Steering knuckles and chassis joints

Each of these positions demands high torsional strength, perfect alignment, and lasting lubrication—all delivered by the 3GEN-manufactured 47757537 BUSHING CASE.

Field Performance and Operator Benefits

Reduced Downtime

Consistent lubrication and extended wear resistance mean fewer replacements and less idle time.

Smooth Machine Response

Operators notice more accurate bucket control, improved precision, and less “play” in linkages.

Lower Total Ownership Cost

Because each bushing lasts longer and protects adjacent components, long-term maintenance costs drop significantly.

Enhanced Safety

Stable mechanical linkages reduce the risk of unexpected play or failure, improving operator and job-site safety.

Packaging and Shipping Information

Each 47757537 BUSHING CASE is individually sealed in anti-corrosive wrapping, labeled with part and batch information, and packaged in shock-proof cartons.
Large orders are palletized and vacuum-wrapped to protect against moisture during transit. All packages include a Certificate of Conformity and a Quality Inspection Report issued by 3GEN Export.

Summary of Key Specifications

Conclusion

The 47757537 BUSHING CASE is not merely a spare part—it is a performance-critical component that ensures CASE Heavy Machinery operates with precision, stability, and long-term durability. By combining OEM-grade engineering with advanced surface treatment and material science, this bushing extends the operational life of vital machine joints.

Whether in a 580 N backhoe digging dense clay or a 721 F wheel loader working continuous shifts in quarry dust, this bushing maintains its geometry, lubrication, and mechanical integrity. That reliability is what makes 3GEN Export a trusted OEM supplier to global machinery owners who demand the best balance of quality, delivery speed, and cost efficiency.

Manufactured in Turkey, these products are made using the latest technologies and built to meet the highest international standards. Each machine is a high-quality copy of the original, ensuring durability, precision, and performance that you can rely on for modern construction and metalworking projects.