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When your design demands minimal radial footprint without sacrificing load capacity, standard bearings simply won't fit. Engineers, robotics builders, and precision-equipment technicians working on space-constrained assemblies need thin wall deep groove ball bearings that deliver reliable rotation in the tightest housings. These 6800–6819 series bearings are available in both ZZ (metal shield) and 2RS (rubber-sealed) configurations, letting you match the sealing requirement to your environment.
Each bearing features a steel inner and outer ring with a full complement of precision-ground steel balls and a pressed-steel or nylon cage. Inner diameters span 10 mm (0.394 in) to 95 mm (3.740 in), with corresponding outer diameters from 19 mm (0.748 in) to 120 mm (4.724 in) and widths of 5–13 mm (0.197–0.512 in). The thin-section geometry keeps the cross-section narrow relative to bore size, enabling compact, lightweight designs.
Typical applications include 3D printer carriage axes and extruder idlers, RC car and drone motor shafts, medical device actuators requiring low-noise rotation, and light industrial conveyor rollers where a slim profile is essential. The 2RS variant suits dusty or lightly lubricated environments, while the ZZ shield is preferred where grease retention and low drag are priorities.
ZZ metal shields retain grease and block coarse debris with minimal drag. 2RS rubber contact seals provide superior dust and moisture exclusion for demanding environments.
Covers 6800 through 6819 series — ID 10–95 mm, OD 19–120 mm, width 5–13 mm — so one listing handles multiple project stages without sourcing from multiple suppliers.
Narrow cross-section relative to bore diameter reduces rotating mass and allows integration into compact housings where standard-section bearings cannot fit.
Inner and outer rings are machined from bearing-grade steel, providing the dimensional stability and hardness needed for consistent radial and axial load handling.
Precision-ground steel balls with a pressed cage maintain even spacing, reducing vibration and noise during high-speed rotation in motors, spindles, and idler assemblies.
Available in packs of 1, 2, 3, 5, 10, 20, 25, 50, and 80 pieces — order exactly what your build or maintenance stock requires without overpaying for excess inventory.
| Series | 6800 – 6819 (thin-section deep groove) |
|---|---|
| Seal Type | ZZ (metal shield) / 2RS (rubber contact seal) |
| Inner Diameter (ID) | 10 – 95 mm (0.394 – 3.740 in) |
| Outer Diameter (OD) | 19 – 120 mm (0.748 – 4.724 in) |
| Width | 5 – 13 mm (0.197 – 0.512 in) |
| Ring Material | Bearing-grade steel |
| Ball Material | Steel |
| Cage Type | Pressed steel or nylon (varies by size) |
| Lubrication | Grease-filled (factory pre-lubricated) |
| Operating Temperature | See variant options |
| Dynamic Load Rating (C) | See variant options |
| Static Load Rating (C0) | See variant options |
| Available Quantities | 1, 2, 3, 5, 10, 20, 25, 50, 80 pcs |
Choose ZZ (metal shield) when you need low drag torque, easy re-lubrication access, and protection from coarse particles in a relatively clean environment. Choose 2RS (rubber contact seal) when the bearing will be exposed to dust, fine particles, or light moisture — the rubber lip makes contact with the inner ring to block contamination more effectively, at the cost of slightly higher friction.
"Thin wall" refers to a bearing where the cross-section (the difference between OD and ID divided by two) is small relative to the bore diameter. This allows designers to use a larger bore — and therefore a stiffer shaft — while keeping the overall assembly envelope compact and lightweight. It is especially valuable in robotics joints, drone frames, and medical devices where every gram and millimeter counts.
Measure or obtain from your drawing: (1) the shaft diameter — this must match the bearing ID exactly; (2) the housing bore — this must match the bearing OD; (3) the available axial space — this must accommodate the bearing width. Cross-reference these three dimensions with the variant name shown as Model (ID × OD × Width) in the selector above. If in doubt, contact us to confirm before ordering.
Deep groove ball bearings in the 6800–6819 series are well-suited for moderate-to-high rotational speeds. The ZZ variant typically achieves higher limiting speeds due to lower seal friction. Exact speed ratings depend on the specific model and lubrication; refer to the bearing series datasheet or contact us for speed limit data on your chosen size.
Deep groove ball bearings can accommodate moderate axial loads in addition to their primary radial load capacity. They are not designed for predominantly axial applications — for those, angular contact or thrust bearings are more appropriate. For combined radial and light axial loads (such as in motor shafts or conveyor rollers), these bearings perform reliably within their rated limits.
Yes. Both ZZ and 2RS variants are factory-filled with grease and are ready to install without additional lubrication in most applications. The 2RS seal retains grease more effectively over the bearing's service life. If your application involves extreme temperatures or wash-down conditions, contact us to confirm suitability before ordering.
For prototyping or single-machine repair, the 1- or 2-piece pack is the most economical entry point. For small production runs or maintenance kits, the 5- or 10-piece packs offer a per-unit saving. Larger packs (20, 25, 50, 80 pcs) are suited to production assembly lines or wholesale stocking. Select your model first, then choose the quantity that matches your build volume.
