Thin Wall Deep Groove Ball Bearings — Compact Steel Precision for Tight-Space Applications
When your design leaves almost no room for a bearing but still demands reliable radial load capacity, standard-series bearings simply don't fit. Engineers, robotics builders, and machine designers working with compact assemblies need a thin-section solution that doesn't sacrifice structural integrity. These thin wall deep groove ball bearings in the 6800–6810 series are built for exactly that scenario — delivering consistent rotational performance in housings where every millimeter counts.
Each bearing features a chrome steel (GCr15) inner ring, outer ring, and ball complement, enclosed by metal (steel) seals on both sides. The series spans inner diameters from 10 mm (0.394 in) to 50 mm (1.969 in), with outer diameters ranging from 19 mm (0.748 in) to 65 mm (2.559 in) and section thicknesses of 5 mm or 7 mm (0.197–0.276 in) depending on the size selected. Variants are available individually or in multi-piece quantities to suit both prototyping and production runs.
Typical use cases include brushless motor front/rear support in drones and RC vehicles, spindle bearings in compact CNC router heads, idler pulley shafts in 3D printer extruder assemblies, and pivot points in robotic arm joints — all applications where a thin wall deep groove ball bearing reduces envelope size without compromising radial stiffness.
⚙️ Compatibility: Fits standard 6800–6810 series bearing seats. Confirm bore diameter, outer diameter, and width against your housing drawing before ordering.
✅ Key Features of These Thin Wall Deep Groove Ball Bearings
🔩Chrome Steel Construction
Inner ring, outer ring, and balls are machined from GCr15 chrome steel, providing a Rockwell hardness of approximately 60–64 HRC for extended service life under continuous radial loading.
🛡️Double-Sided Metal Seals
Steel shields on both faces retain factory-applied grease and block coarse contaminants, making these bearings suitable for dusty workshop and light industrial environments without additional sealing hardware.
📐Thin-Section Profile
Section widths of 5 mm or 7 mm (depending on bore size) allow installation in housings where standard deep groove bearings would not clear adjacent components, reducing overall assembly weight and envelope.
📦Flexible Quantity Options
Available in 1, 2, 3, 5, 10, or 20-piece packs so you can order exactly what a prototype or production batch requires without overstocking.
🔄Wide Size Range in One Listing
Eleven bore sizes from 10 mm to 50 mm are offered under a single SKU family (BGMSHXJZC5499–5509), simplifying procurement when a project requires multiple shaft diameters.
⚡Low Friction, Pre-Greased
The thin-section raceway geometry and smooth ball path minimize drag torque, while factory grease fill means the bearing is ready to install without additional lubrication steps.
📐 Technical Specifications — Thin Wall Deep Groove Ball Bearings
| Bearing Series |
6800 – 6810 (thin wall / slim section) |
| Inner Diameter (ID) |
10 mm – 50 mm (0.394 in – 1.969 in) |
| Outer Diameter (OD) |
19 mm – 65 mm (0.748 in – 2.559 in) |
| Section Width |
5 mm or 7 mm depending on size (0.197 in / 0.276 in) |
| Ring & Ball Material |
Chrome steel (GCr15) |
| Seal Type |
Double metal (steel) shields — ZZ configuration |
| Lubrication |
Factory-applied grease (pre-lubricated) |
| Bearing Type |
Single-row deep groove ball bearing |
| Available Sizes |
See variant options |
| Available Quantities |
1 / 2 / 3 / 5 / 10 / 20 Pcs per order |
| Weight (per piece) |
See variant options |
❓ Frequently Asked Questions
How do I choose the correct bearing size for my shaft?
Match the bearing's inner diameter (ID) to your shaft diameter. For example, if your shaft is 20 mm, select the 20 × 32 × 7 mm variant. Then verify that the outer diameter (OD) fits your housing bore and that the section width clears any retaining features. Always cross-reference with your mechanical drawing before ordering.
What load types can these bearings handle?
These are single-row deep groove ball bearings designed primarily for radial loads. They can also accommodate moderate axial (thrust) loads in both directions. They are not intended for heavy axial-only applications — use angular contact or thrust bearings for those scenarios.
Are the metal seals removable for re-lubrication?
The steel shields (ZZ configuration) are press-fit and can be carefully removed with a thin pick for re-lubrication, though this requires care to avoid distorting the shield. For most light-duty applications, the factory grease fill is sufficient for the bearing's service life without re-lubrication.
Are these bearings corrosion-resistant?
Chrome steel (GCr15) offers moderate corrosion resistance suitable for dry or lightly oiled indoor environments. For applications exposed to moisture, water spray, or corrosive chemicals, consider stainless steel bearings instead. Applying a light coat of compatible grease to the outer surfaces can extend service life in mildly humid conditions.
What is the difference between the 5 mm and 7 mm width variants?
The section width is determined by the bearing size: smaller bores (10–17 mm, series 6800–6803) use a 5 mm width, while larger bores (20–50 mm, series 6804–6810) use a 7 mm width. This follows the standard thin-section dimensional series. Select the size that matches your housing depth.
Can I use these bearings in a 3D printer, drone, or robotics project?
Yes. The 6800-series thin wall profile is widely used in 3D printer extruder idlers, drone motor shafts, robotic joint pivots, and compact CNC spindles. Confirm the bore and OD match your design, and ensure the operating speed and load are within the bearing's rated capacity for your specific application.
Do multi-piece packs contain identical bearings?
Yes. All pieces in a 2, 3, 5, 10, or 20-piece pack are the same size and specification as indicated by the selected variant. They are suitable for use as matched sets in paired-bearing configurations such as both ends of a shaft.
🛒 Select your size and quantity above, then add to cart.
