Deep Groove Ball Bearing – 12x21x5 mm (resp. 21x12x5 mm)
| Loadability: | |
| Corrosion resistance: | |
| Impermeability: | |
| Speed range: |
| SKU | 26650-O |
|---|---|
| Type | Deep Groove Ball Bearing |
| Specialty | Hybrid bearings: ceramic balls (Si3N4) / stainless steel rings (AISI 420) / nylon cage (PA66) / ungreased |
| Dimensions (mm) – Inside x outside x width | 12 x 21 x 5 mm |
| Cover | Open + 2 rubber seals included |
| Rings material | Stainless steel (AISI420 / 1.4028 / X30Cr13); Hardened stainless steel (with iron content) Hardness: ≥55HRC; 230° C max. |
| Ball material | Si3N4: Black ceramic (88% Si3N4 / 4% Al2O3 / 4% Y2O3 / 4% other materials); Grade: G10 (precision balls); Hardness: 75~80HRC; 1050° C max. |
| Cage material | Nylon / polyamide cage (”resin crown”) – (PA66); Low coefficient of friction; Very resistant; 80° C max. |
| Tolerance class | ABEC-1 bearing (DIN/ISO P0); Industrial bearing |
| Clearance | In the overlap area of normal (C0) and increased (C3) internal clearance |
| Radial play | min.: 0.011 mm / max.: 0.025 mm |
| Inner diameter (mm) | 12 |
| Inner diameter tolerance | +0 / -0.008 mm |
| Outer diameter (mm) | 21 |
| Outer diameter tolerance | +0 / -0.009 mm |
| Width (mm) | 5 |
| Outer ring surface | Cylindrical outer ring (standard) |
| Angle (Inner ring / Outer ring) | 90°/90° (Standard) |
| Conductivity and magnetism | Electrically conductive: Rings yes (but no electrical conductivity between the inner and outer ring; the balls and the cage do not conduct electricity) – Magnetic: Rings yes (but balls and cage are not magnetic) |
| Inner diameter (inch) | 0,4724409449 |
| Outer diameter (inch) | 0,8267716535 |
| Width (inch) | 0,1968503937 |
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