NSK IKO KOYO NTN 6304-6317 Deep Groove Ball Bearings – ZZ/2RS/DDU, High-Precision Motorcycle Bearings
Basic Info.
| Bore Size | 1–160 mm |
| Specification | 25×52×15 mm |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Seals Type | ZZ / 2RS / Open |
| Lubrication | Grease or Oil |
Introduction
Deep Groove Ball Bearing (Model NO. 6311), unseparated, single-row design. Made of high-grade bearing steel, suitable for radial loads. Available in various bore sizes (1–160 mm), standard dimension 25×52×15 mm. Features ZZ, 2RS or open seal options, pre-lubricated with grease or oil. Precision grades P0–P4, vibration levels Z1V1–Z3V3. OEM/ODM supported.

















