6704-2RS Bearing 20x27x4mm Sealed Ball Bearing
UPC: 00193019048245
Type: Deep Groove Ball Bearing
Closures: 2 Rubber Seals
Lubrication: Self Lubricated (Grease)
Dimensions: 20mm x 27mm x 4mm
6704-2RS Sealed Ball Bearing
✔️ Chrome Steel, Double Rubber Seals, 20mm x 27mm x 4mm
The 6704-2RS is a slim deep groove ball bearing built with durable chrome steel and sealed on both sides with rubber to keep grease in and dirt out. It's ideal for tight-fitting applications like small motors, robotics, and compact gear housings where quiet and smooth rotation matters.
✅ Pack of 1 deep groove sealed ball bearing
✅ Size: 20mm ID x 27mm OD x 4mm wide
✅ Made from high-strength 52100 chrome steel
✅ Two rubber seals (2RS) for dust and moisture protection
✅ Pre-lubricated with grease for long-lasting performance
| ID (d) | OD (D) | Width (B) |
|---|---|---|
| 20mm | 27mm | 4mm |
💡 What are the benefits of using sealed ball bearings in tight setups?
Sealed bearings provide clean, smooth performance in confined environments.
-
Rubber seals keep contaminants out and grease in
-
Designed for low-noise, low-maintenance operation
-
Great for high-speed tools, small machines, and electronics
-
Fit snugly where space is limited
If your build needs a reliable, sealed bearing in a slim design, this one’s ready to roll. Add it now and keep your project running clean and smooth.
My son uses this as a 'fiddle ring' to keep from biting his nails. Diameter is good for his 13 yr old thumb. More affordable and far less glitzy (ie much cooler by his standards) than those sold as real rings. It's fine for the purpose but doesn't spin fast like the open bearing version his dad owns. Bought a few to stash in handy places as these are quite useful.