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When your design demands a full-load bearing in a minimal radial footprint, standard series bearings simply won't fit. Engineers, robotics builders, and DIY makers working with compact motors, spindles, and precision assemblies rely on the 16000-series thin-walled deep groove ball bearing to deliver reliable radial and axial load support without sacrificing envelope space.
This listing covers seven sizes in the 16000 series — 16001 through 16007 — with bore diameters ranging from 12 mm (0.47 in) to 35 mm (1.38 in) and outer diameters from 28 mm (1.10 in) to 62 mm (2.44 in). Width (thickness) ranges from 7 mm to 9 mm depending on size. The open (unshielded) design allows for custom lubrication and easy inspection, making these bearings well-suited for controlled environments.
Typical applications include small electric motors and servo drives, 3D printer axis carriages and extruder assemblies, RC vehicle wheel hubs and steering pivots, and light-duty industrial spindles requiring a thin cross-section deep groove ball bearing for space-constrained installations.
| Bearing Series | 16000 (Thin-Walled Deep Groove) |
|---|---|
| Available Sizes | 16001 / 16002 / 16003 / 16004 / 16005 / 16006 / 16007 |
| Bore Diameter (d) | 12 mm – 35 mm (0.47 in – 1.38 in) — see variant options |
| Outer Diameter (D) | 28 mm – 62 mm (1.10 in – 2.44 in) — see variant options |
| Width / Thickness (B) | 7 mm – 9 mm — see variant options |
| Row Configuration | Single Row |
| Bearing Type | Deep Groove Ball Bearing |
| Shield / Seal Type | Open (Unshielded) |
| Material | See variant options |
| Lubrication | Customer-applied (grease or oil recommended) |
| Load Direction | Radial + Moderate Axial (Bidirectional) |
| Quantity per Pack | 1 piece or 5 pieces — see variant options |
Match the bearing to your shaft bore and housing inner diameter. The variant name shows the format: Bore × OD × Width in mm. For example, 16004 (20×42×8mm) fits a 20 mm shaft in a 42 mm housing bore with an 8 mm axial space. Measure your shaft and housing carefully before selecting.
The 16000 series has a thinner cross-section (smaller OD relative to bore) compared to the 6000 series. This makes 16000-series bearings ideal for compact designs where radial space is limited. The trade-off is a slightly lower dynamic load rating compared to a same-bore 6000-series bearing.
The open deep groove design supports moderate-to-high speeds when properly lubricated. Exact speed ratings depend on the specific size and lubricant used. For high-speed spindle or motor applications, apply a light grease or oil and confirm the speed rating for your chosen size against your application's RPM requirements.
The open construction means the bearing internals are exposed to the environment. For corrosion-prone environments (moisture, mild chemicals), apply a corrosion-inhibiting grease and consider a shielded or sealed bearing variant if long-term exposure is expected. Contact us to confirm material options for your application.
Yes — deep groove ball bearings support moderate axial loads in both directions in addition to radial loads. They are not designed for heavy pure-thrust applications; for those, a dedicated thrust bearing would be more appropriate. For combined radial and light axial loads (common in motors and spindles), these bearings perform well.
If you need a single replacement or are prototyping, the 1-piece option is ideal. For multi-axis machines, production builds, or to keep spares on hand, the 5-piece pack offers a lower per-unit cost. Both options ship the same bearing — only the quantity differs.
For general-purpose use, a lithium-based grease (NLGI Grade 2) is a reliable choice. For higher speeds or lower operating temperatures, a light machine oil or low-viscosity grease may be preferable. Apply lubricant sparingly to avoid churning losses — fill approximately 30–50% of the free space inside the bearing.
