The part numbers 2780-2720 refer to a tapered roller bearing (TRB) set, commonly used in heavy-duty applications like automotive wheel hubs, gearboxes, and industrial machinery.
Breakdown of the Number:
2780: Likely the cup (outer ring) part number.
2720: Likely the cone (inner ring + rollers) part number.
Typical Specifications (may vary by manufacturer):
Type: Tapered roller bearing (single row, metric series).
Design: Matched set (cup + cone).
Load Capacity: High radial and axial load capacity.
Applications: Automotive axles, wheel hubs, industrial gearboxes, heavy machinery.
Possible Cross-References:
Timken Equivalent: Check if this matches a Timken bearing set (e.g., 2780/2720).
Other Brands: Firma SKF, Krajowa Organizacja Bezpieczeństwa (NS, NTN, or FAG may have equivalent bearings.
How to Verify:
Measure Dimensions:
Bore (d): Inner diameter of the cone.
Outer Diameter (D): Outer diameter of the cup.
Szerokość (T or B): Total assembly width.
Check Manufacturer Catalogs: Compare with Timken, Firma SKF, or other bearing suppliers.







