Use of Steel Bright Bars in Lift Arm Pin Manufacturing
A lift arm pin is an important connecting component used in
tractor three-point linkage systems. It connects the lift arms to
implements and allows controlled movement during field operations.
To manufacture lift arm pins, steel bright bars are used as raw
material due to their high shear strength, wear resistance and
dimensional accuracy. These properties ensure safe operation and
long service life under heavy field loads.
← Agricultural Applications
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← All Bright Bar Applications
Applications of Lift Arm Pins
- Tractor three-point linkage systems
- Rotavators and ploughs
- Seed drills and cultivators
- Harvesting equipment
- Loaders and attachments
Why Bright Bars Are Used to Manufacture Lift Arm Pins
- High shear strength for load transfer
- Excellent wear resistance at contact surfaces
- Tight dimensional tolerance for secure fit
- Uniform mechanical properties
- Good machinability for grooves and holes
Lift Arm Pin – Typical Geometry & Machined Features
Lift arm pins typically include retaining grooves, chamfered ends
and precision bearing surfaces to allow smooth articulation and
secure locking.
Lift Arm Pin Manufacturing Process Using Bright Bars
- Cutting bright bars to required length
- CNC turning for diameter accuracy
- Machining retaining grooves
- Drilling locking holes (if required)
- Heat treatment for strength
- Surface finishing for corrosion protection
Steel Grades Commonly Used for Lift Arm Pins
| Application | Steel Grade | Reason |
|---|---|---|
| Standard agricultural use | EN8, C45 | Good strength and machinability |
| Heavy-duty applications | EN19 | Higher load-bearing capacity |
| High wear conditions | 42CrMo4 | Superior toughness |
Common Lift Arm Pin Failures
- Wear due to dust and abrasion
- Bending under overload
- Shear failure from impact loads
- Corrosion in outdoor conditions
Using high-quality bright bars with proper heat treatment
significantly reduces these failures.
Related Agricultural Components
- Hitch Pins
- PTO Shafts
- Top Link Pins
Why Steelmet Industries?
- Precision bright bars for agricultural components
- Supply of EN8, EN19 and alloy steels
- VD route steels for critical applications
- NABL-certified testing support
- Consistent quality and traceability
FAQs
What material is used for lift arm pins?
EN8 and EN19 steels are commonly used.
Why are bright bars preferred?
They provide straightness and tight tolerance.
Are lift arm pins heat treated?
Yes, to improve wear resistance.
Can VD route steel be used?
Yes, for premium agricultural components.
Contact for Enquiries
For sourcing bright bars for lift arm pin manufacturing: