-
- About Us
- Cooperation
- News
- Offer
- E-shop
- Contact
- TRACK FINDER
- WYSZUKIWARKA SZYB
- Kategorie produktowe
-
ALL CATEGORIES
-
-
-
-
-
-
SLEW SYSTEM
-
-
-
-
-
AXLES
- TIE RODS
- KIT SPIDER FOR DRIVE SHAFTS
- DIFFERENTIAL
- MOUNT THE KNUCKLE
- KIT SPIDER FOR AXLE SHAFTS
- HUB / GEAR REDUCTION
- PROPSHAFTS
- SOLENOID VALVES / COILS
- FLANGES / COUPLING YOKES
- BEARINGS
- BUSHES / WASHERS MOUNT AXLE
- AXLE / DIFFERENTIAL HOUSING
- DRIVESHAFTS / CENTER JOINTS
- BOLTS / NUTS / STRAPS
- LOCK / CIRCLIP / CLIP
- CROWN WHEEL AND PINIONS
- SEALS
- OTHERS
-
-
-
-
-
-
-
-
ENGINE
-
-
-
-
-
COILS / SOLENOID VALVES
-
SWIVELS / TURNING JOINTS
-
PUMPS / STEERING VALVES / MOTORS
-
-
-
VALVES
-
HYDRAULIC HOSES / PIPES
-
RAMS
-
ACCUMULATORS
-
QUICKHITCHES
-
-
-
BOLTS / NUTS / WASHERS
-
PUMP DRIVESHAFTS
-
SEALS VALVES / PUMPS
-
OTHERS
-
-
-
-
-
-
-
TIMING
-
EQUIPMENT
-
-
LUBRICATION SYSTEM
-
-
INDUCTION / EXHAUST SYSTEM
-
SEALS / GASKET SETS
-
ENGINE MOUNTING
-
SERVICE TOOLS
-
-
-
-
-
-
STABILIZERS
-
-
-
-
-
-
FUSES / FUSE BOXES
-
RELAYS / FLASHERS
-
REVERSE ALARM
-
-
HEATERS / BLOWERS
-
BATTERY ISOLATER SWITCH
-
-
-
-
-
OILS
-
FLUIDS
-
-
-
PAINTS
-
-
-
-
-
-
-
GLASS / CAB GLAZING
-
-
-
RUBBER SEALS - GLASS
-
ASSEMBLY KITS / ADHESIVES
-
-
-
-
-
ADAPTERS
-
BOLTS / LOCKS
-
-
-
-
HYDRAULIC INSTALLATIONS
-
TOEPLATES
-
TOOTH RIPPER
-
-
-
HYDRAULIC HAMMERS / TOOLS
-
PLOWS
-
QUICKHITCHES
-
FORKS
-
-
-
EARTH DRILL / AUGER
-
SWEEPER / COMPONENTS
-
SWINGOTILT / PLATFORMS
-
-
-
-
-
ACCESSORIES
-
DECAL / STICKERS
-
-
-
GADGETS
-
CLOTHES
-
FAN ZONE
-
-
-
- SPARE PARTS SUITABLE FOR
- JCB
- CAT
- VOLVO
- KOMATSU
- CASE
- NEW HOLLAND
How Are Pins and Bushings Made? A Look at the Machining and Hardening Process
How Are Pins and Bushings Made? A Look at the Machining and Hardening Process
From a Simple Rod to a Precision Component
A pin and a bushing – seemingly two simple, cylindrical pieces of steel. In reality, they are some of the most heavily loaded and precisely manufactured components in your JCB, CAT, or Volvo machine. The difference in lifespan between a cheap replacement and a high-quality part can be tenfold. Understanding the production process will allow you to appreciate why high-quality components, like those from the CORESPEX brand, are worth their price. We invite you behind the scenes!
The Production Process Step by Step
Step 1: Material Selection – The Foundation of Strength
It all starts with the steel. Cheap parts are often made from simple carbon steel. Premium manufacturers, such as CORESPEX, use high-quality alloy steels containing additives like chromium, manganese, and molybdenum. These elements provide the necessary core toughness and allow for an effective hardening process.
Step 2: Pre-Machining and Turning
Raw steel bars are cut to length. Then, they go to modern CNC lathes where they are given their initial cylindrical shape. At this stage, holes and grease channels are also drilled and milled.
Step 3: Induction Hardening – The Secret to Longevity
This is the most important and expensive stage that distinguishes premium parts from cheap replacements. Its goal is to create an "armored" outer layer that is resistant to abrasion, while maintaining a flexible core that won't crack under impact. The process involves flash-heating the surface of the metal with a magnetic field and then instantly quenching it. The key here is the hardening depth. Cheap parts have a "skin" that is a fraction of a millimeter hard. High-quality CORESPEX components have a deep and uniform hardened layer, which guarantees a long service life.
Step 4: Grinding – Smoothness and Precision
The final stage is precision grinding. The pin or bushing is placed on a grinding machine where, with an accuracy of microns, it achieves its final, exact dimension and a perfectly smooth surface. The mirror-like finish minimizes friction and is crucial for the lifespan of seals, such as those from the VICORTEX brand.
Why Does Manufacturing Quality Matter So Much?
A Cheap Part is a False Economy
Saving a small amount on a cheap pin can lead to a line-boring repair of the machine's arm costing a fortune. This is because an unhardened or poorly made pin wears out very quickly, destroying the much more expensive bores in the arm or bucket in the process.
By choosing quality parts, you are investing in peace of mind. A high-quality component guarantees:
- Long life thanks to proper hardening.
- Perfect fit thanks to precision grinding.
- Protection of other, more expensive components from damage.
Eliminating play in your excavator? Bet on a proven solution!
Remember that the quality of new pins and bushings will determine how long you forget about the problem of play. Our offer includes precisely made and properly hardened pins and bushings from the CORESPEX brand. They guarantee a perfect fit and long life. Contact us, and we will help you choose a complete set for your machine!
Related posts
WE OFFER PRODUCTS OF THE BEST BRANDS


















ul. Podkarpacka 57A, 35-082 Rzeszów
NIP: 813-352-97-49 REGON: 180286726
Opening hours
Telephone support - Monday - Friday (8:00 AM – 5:00 PM)
Order pick-up - Monday - Friday (8:00 AM – 4:30 PM)
[email protected]
[email protected]
Gadu-Gadu communicator
GG: 4185846 - Daniel
+48 17 864 31 00
+48 17 864 00 24
+48 17 864 25 96
Mobile phone
+48 607-700-547
+48 695-944-818
+48 691-330-531
+48 690-906-751
Fax
+48 17 864 31 20
