SSR2280ZZRA7P25LY669 is a high-precision, metric miniature stainless steel ball bearing manufactured by New Hampshire Ball Bearings (NHBB).
Key Technical Specification
- Bore Diameter (ID): 8.0 mm (0.3150 in)
- Outside Diameter (OD): 22.0 mm (0.8661 in)
- Width: 7.0 mm (0.2756 in)
- Bearing Material: AISI 440C Stainless Steel (denoted by the SS prefix)
- Closure: ZZ (double removable metal shields to prevent debris entry)
- Precision Rating: ABEC-7 (RA7 code indicating high-precision, smooth running at high speeds)
- Retainer Type: Ribbon Cage (land-piloted style for low frictional drag)
- Radial Play: P25 (controlled radial clearance between 0.0002" and 0.0005")
- Lubrication: LY669 (factory pre-filled specialty synthetic lubricant engineered for extended service life) [1, 4, 5, 6]
Interchange and Cross-Reference Numbers
- Standard Reference / ISO: S608-ZZ
- NMB (Minebea): DDR-2280ZZRA7P25
- GRW Bearings: SS608-2Z [1, 2, 3,