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Engineers, hobbyists, and machine builders who need reliable rotational support in tight spaces often struggle to find bearings that combine a compact cross-section with dependable sealing. These thin wall deep groove ball bearings are engineered for exactly that challenge — delivering smooth, low-friction rotation in applications where standard-width bearings simply won't fit.
Each bearing features a steel inner and outer ring with a full complement of precision steel balls, available in ZZ (metal shield) or RS (rubber seal) configurations. Bore diameters range from 10 mm (0.39 in) to 220 mm (8.66 in), with outer diameters from 19 mm (0.75 in) to 225 mm (8.86 in) and widths typically from 5 mm (0.20 in) to 28 mm (1.10 in) depending on the selected model.
These thin wall ball bearings are widely used in servo motor shafts and stepper motor assemblies, robotic joint actuators requiring minimal radial envelope, medical device mechanisms and precision instrumentation, and RC vehicle wheel hubs and drone motor mounts where weight and space savings are critical.
Covers 6800ZZ through 6932RS series — over 60 distinct models spanning 10 mm to 220 mm bore, so you can source the exact fit for your application without compromise.
ZZ metal shields keep out coarse contaminants with minimal drag; RS rubber seals provide a tighter barrier against fine dust and light moisture ingress for more demanding environments.
Reduced radial width relative to bore size allows installation in space-constrained housings — ideal for compact motors, actuators, and lightweight structural assemblies.
Precision-ground raceways and consistent ball sizing deliver low starting torque and quiet operation across a wide RPM range, reducing heat buildup in continuous-duty applications.
Available in packs of 1, 3, 5, or 10 pieces per order — whether you need a single replacement or a batch for a production run, you can order exactly what you need.
All dimensions follow standard metric bearing designations (ID × OD × Width in mm), making these direct replacements for OEM bearings in motors, gearboxes, and precision equipment.
| Bearing Type | Deep Groove Ball Bearing |
|---|---|
| Series | 6800, 61900, 16000, 6900 (ZZ & RS variants) |
| Seal Type | ZZ (metal shield) / RS (rubber seal) |
| Bore Diameter (ID) | 10 mm – 220 mm (0.39 in – 8.66 in) |
| Outer Diameter (OD) | 19 mm – 225 mm (0.75 in – 8.86 in) |
| Width (Thickness) | 5 mm – 28 mm (0.20 in – 1.10 in) |
| Material | Steel (inner ring, outer ring, balls) |
| Lubrication | Factory-greased (sealed) |
| Dimension Standard | Metric (mm) |
| Available Quantities | 1 / 3 / 5 / 10 pcs per order |
| Exact Model Dimensions | See variant options |
| Dynamic Load Rating | See variant options |
| Static Load Rating | See variant options |
| Max RPM | See variant options |
Match the bore diameter (ID) to your shaft size, the outer diameter (OD) to your housing bore, and the width to your available axial space. The model name encodes these dimensions — for example, 6804ZZ means ID 20 mm × OD 32 mm × Width 7 mm. Select the model from the variant dropdown that matches your shaft and housing measurements exactly.
ZZ bearings use metal shields on both sides. They are non-contact shields that allow a small gap, resulting in lower friction and higher speed capability, but they offer less protection against fine dust or moisture. RS bearings use rubber contact seals that provide a tighter barrier against contaminants and light moisture, making them better suited for slightly dirtier or damper environments, at the cost of marginally higher drag.
Yes. Deep groove ball bearings in the 6800, 61900, 16000, and 6900 series are the standard choice for servo motors, stepper motors, robotic joints, and precision actuators. Their thin-wall design is specifically suited to applications where radial space is limited. For heavy radial or combined axial-radial loads, verify the dynamic and static load ratings for your specific model against your application requirements.
These are standard steel bearings with factory grease lubrication. They are suitable for indoor, dry-to-lightly-damp environments. For corrosive or wet environments, stainless steel variants would be more appropriate. The RS rubber seal provides better moisture exclusion than ZZ shields, but neither is rated for full immersion or highly corrosive chemical exposure.
In most cases, yes. These bearings follow standard metric designations (ID × OD × Width in mm), so they are dimensionally interchangeable with OEM bearings of the same model number. Always verify the three key dimensions — bore, outer diameter, and width — against your existing bearing or equipment manual before ordering.
If you need a single replacement bearing, the 1-piece option is the most economical choice. For builds requiring multiple bearings (such as a robot with several joints, or a multi-axis CNC machine), the 3, 5, or 10-piece packs offer a lower per-unit cost and ensure you have spares on hand. Select your preferred quantity from the Units(pcs) variant option.
Yes. Each variant name follows the format Model (ID × OD × Width in mm). For example, 6808ZZ (40x52x7mm) means bore 40 mm, outer diameter 52 mm, width 7 mm. These are standard industry dimensions for the respective bearing model numbers and can be cross-referenced with any standard bearing catalog.
