NTN crankshaft bearing designed for engine maintenance and replacement operations. The manufacturer reference 6306NC3 identifies this radial bearing with standard motorcycle dimensions: an inner ring of 30 mm, an outer ring of 72 mm, and a width of 19 mm. Designed to withstand the radial forces of the crankshaft, it is installed on engines where precise alignment and appropriate clearance are essential for the proper functioning of the moving assembly.
- Brand: NTN
- Designation: Crankshaft bearing 30x72x19 mm
- Manufacturer reference: 6306NC3
- Clearance: C3 version (radial clearance greater than normal)
- Category: Crankshaft bearing
- Universe: Roadster
Ideal for interventions on crankshafts and the refurbishment of old or restored engines. Before installation, check the condition of the crankpin, the bearings, and the cage to ensure a clean support and correct alignment. This type of bearing is widely used as original replacement for models suited to its dimensions.
Examples of compatible motorcycles:
- HONDA XL 250 R (MD03) — 1983 — 250 cm3
- HONDA XL 250 R (MD03) — 1982 — 250 cm3