Forged Pins & Bushes
Pins and bushes are consumables in every articulated machine, and their replacement interval sets the maintenance cost of the whole assembly. Forged, case hardened and ground pins extend that interval substantially over turned bar alternatives.
- Diameter Range
- 8 mm – 200 mm
- Length
- Up to 1,500 mm
- Materials
- EN8, EN19, 20MnCr5, EN353
- Surface Hardness
- 55 – 62 HRC case
- Ground Tolerance
- h7 / h8
- Surface Finish
- Ra 0.8 µm or better
Forged Pins & Bushes at a glance
Quotable facts from Avadh Techno Forge, Gundasara, Gondal, Rajkot.
- Diameter Range: 8 mm – 200 mm
- Length: Up to 1,500 mm
- Materials: EN8, EN19, 20MnCr5, EN353
- Surface Hardness: 55 – 62 HRC case
- Ground Tolerance: h7 / h8
- Surface Finish: Ra 0.8 µm or better
Surface Hardness and Core Toughness
A pin needs a hard surface to resist bushing wear and a tough core to survive shock. Case hardening or induction hardening on forged stock gives both; through-hardened bar gives one at the expense of the other.
- Case or induction hardened surfaces
- Tough core resists shock loading
- Ground to h7 / h8 fits
- Consistent hardness across batches
Fits and Finish
Ground to h7 or h8 with Ra 0.8 µm or better, so the pin-bush clearance starts at the design value rather than at whatever a turned tolerance produced. Grease grooves and cross-holes are machined where lubrication requires them.
Sizes and Applications
8 mm to 200 mm diameter, up to 1,500 mm length, serving earthmoving linkages, trailer suspensions, agricultural implements, cranes and general machinery.
People also ask
What hardness do you supply pins at?
Typically 55 to 62 HRC case hardness over a tough core, ground to h7 or h8 with Ra 0.8 µm or better.
Can pins and bushes be supplied as matched sets?
Yes, clearance-matched sets that remove tolerance mismatch during field reassembly.
Topics covered on this page
- forged pin manufacturer India
- forged bush supplier
- clevis pin manufacturer Rajkot
- track pin forging India
Based on work carried out at our own forging plant at Gundasara, Gondal, Rajkot — operating since 2008.
Questions Answered
What hardness do you supply pins at?
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Typically 55–62 HRC case hardness with a tough core, adjusted to your application.
Are pins ground to size?
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Yes, ground to h7 or h8 fits with Ra 0.8 µm or better finish.
Can you machine grease grooves and cross-holes?
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Yes, both are standard features we produce to drawing.
Do you supply matched pin and bush sets?
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Yes, pins and bushes can be supplied as clearance-matched sets.