Input Shaft Lock Nut ((R271123)

Product Description

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Premium Quality Pinion Nut / Input Shaft Lock Nut for 4WD Tractors (Compatible with 5090E, 5075E, 5065E, 5503, 5403, 5303, 5310 Series)

Ensure secure fastening and long-term drivetrain reliability with our heavy-duty Pinion Nut / Input Shaft Lock Nut, engineered for high-strength locking, precise threading, and resistance to vibration. Designed as an OEM-grade replacement solution, this component is perfectly compatible with widely used 4WD tractor models including 5090E, 5075E, 5065E, 5503, 5403, 5303, and 5310 series tractors, making it ideal for both Indian and global export markets.

Critical Fastening Component in Final Drive & Transmission

The pinion nut, also known as the input shaft lock nut, is a vital fastening component used to secure the pinion gear or bearings on the input shaft within the final drive or transmission system. It plays a crucial role in maintaining correct preload, alignment, and positioning of rotating components.

Proper tightening of this nut ensures stable gear meshing and prevents unwanted movement during operation.

Designed for High Torque & Anti-Loosening Performance

This lock nut is specifically engineered to perform under continuous vibration and high torque conditions. It ensures:

• Strong axial locking of pinion gear and bearings

• Resistance to loosening under heavy load and vibration

• Stable preload for proper gear engagement

• Enhanced safety and reliability of drivetrain components

Such locking is essential in tractor applications where high torque transmission is constant.

High-Strength Alloy Steel Construction

Manufactured using premium-grade alloy steel with precision threading, this nut is built to withstand:

• High tightening torque

• Continuous operational stress

• Harsh agricultural environments like dust, mud, and moisture

The durable material ensures long service life and consistent locking performance.

Precision Threading for Accurate Fitment

Each unit is CNC-machined to ensure perfect thread accuracy and fitment on the shaft. This results in:

• Tight and secure engagement

• Easy installation and removal

• Reduced risk of thread wear or damage

• Reliable performance over extended use

Key Features & Advantages

• Dual-purpose pinion nut / input shaft lock nut

• Direct-fit compatibility with multiple 4WD tractor models

• High-strength thread design for secure locking

• Anti-loosening performance under vibration

• Precision-machined for accurate fitment

• Suitable for India and export markets

Applications Across Multiple Uses

This component is widely used in:

• Final drive pinion gear assemblies

• Transmission input shaft systems

• Gear and bearing locking applications

• Agricultural and heavy-duty machinery

Its essential function makes it a fast-moving item in aftermarket and export supply chains.

Export Quality Manufacturing Standards

Each unit is produced under strict quality control systems and undergoes:

• Thread profile and dimensional inspection

• Hardness and material strength testing

• Fitment and performance validation

Strong export packaging ensures safe delivery worldwide, making it ideal for dealers, distributors, and bulk importers.

Why Choose Our Pinion Nut / Input Shaft Lock Nut?

• OEM-grade quality without brand dependency

• Competitive pricing for bulk buyers and dealers

• Ready stock availability for fast dispatch

• Trusted by global tractor parts exporters

• Consistent quality across large production batches

Ideal for Dealers, Exporters & Workshops

If you are a tractor spare parts dealer, importer, or workshop owner, this pinion nut offers consistent demand due to its critical role in drivetrain assemblies and regular replacement cycles.

Order Now – Secure Locking & Reliable Performance

Upgrade your tractor’s drivetrain stability with our Pinion Nut / Input Shaft Lock Nut compatible with 5090E, 5075E, 5065E, 5503, 5403, 5303, and 5310 4WD tractors. Built for strength, precision, and long-lasting performance—available for pan India supply and global export.

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