In high-performance diesel and gas engines, crankshaft journals play a critical role in converting linear piston motion into rotational force. When these journals become worn, scored, or out of tolerance, crankshaft journal grinding becomes essential to restore proper engine function and prevent catastrophic damage.

At Panesar Crankshaft Centre, we offer expert crankshaft journal grinding services across Africa, helping clients in power generation, marine, oil & gas, and mining sectors maintain peak engine performance.

What Is Crankshaft Journal Grinding?

Crankshaft journal grinding is the process of removing material from the main and crankpin journals to restore roundness, surface finish, and correct dimensions. The journals are ground to undersize tolerances and then paired with matching undersize bearings.

This service is vital when journals are affected by:

  • Scoring from bearing failure
  • Heat spots and blueing
  • Ovality or taper wear
  • Surface cracks or pitting
  • Misalignment or out-of-round conditions

Why It Matters in Africa

With many African industries operating in high-load, high-temperature environments, crankshaft journal degradation is common. Grinding provides a fast, cost-effective solution compared to replacing the crankshaft.

Whether you’re operating in a coastal shipyard, a desert power station, or a remote mining camp—our mobile or workshop-based grinding services help minimize downtime and extend engine life.

Our Journal Grinding Capabilities

  • Grinding of main journals and crankpins
  • Diameters from small generators to large marine engines
  • Portable journal grinding on-site or in our facility
  • Achieving OEM-specified tolerances and surface finishes
  • Journal polishing, fillet radius restoration, and chamfering

Industries We Serve

  • Power generation (diesel, gas, HFO)
  • Marine propulsion and auxiliary systems
  • Oil & gas and FPSO engines
  • Mining and earthmoving equipment
  • Heavy-duty industrial machinery

Benefits of Crankshaft Journal Grinding

  • Restores journal roundness and size
  • Eliminates vibration and bearing failure risk
  • Improves engine performance and fuel efficiency
  • Supports longer intervals between overhauls
  • Cost-effective alternative to crankshaft replacement

Why Choose Panesar Crankshaft Centre?

  • Skilled crankshaft technicians with decades of experience
  • Precision grinding machines and portable in situ tools
  • Rapid deployment across African regions
  • Certified post-grind inspection and dimensional reports
  • Support for all major engine brands and journal configurations

Precision Grinding. Proven Results.

At Panesar Crankshaft Centre, we understand the importance of crankshaft integrity. Our journal grinding services are trusted by operators across Africa to deliver long-lasting, precision repairs—keeping engines running reliably under demanding conditions.


Experiencing bearing issues or journal wear?
Contact us now to schedule a crankshaft inspection or journal grinding service—on-site or at our workshop.


Panesar Crankshaft Centre — Precision journal grinding for Africa’s most critical engines.