30-Pack Full Ceramic 688-2RS Miniature Ball Bearings 8x16x4mm ZrO2 Sealed Dual Rubber Bearings for Precision Machinery and Hobby Projects with PTFE Cage Ideal For High-Precision RC Models Tiny Gearboxes Drones Robotic Joints and Laboratory Instrumentation
SKU: 33838805758

30-Pack Full Ceramic 688-2RS Miniature Ball Bearings 8x16x4mm ZrO2 Sealed Dual Rubber Bearings for Precision Machinery and Hobby Projects with PTFE Cage Ideal For High-Precision RC Models Tiny Gearboxes Drones Robotic Joints and Laboratory Instrumentation

$179.55 $199.50
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Description

30-Pack Full Ceramic 688-2RS Miniature Ball Bearings 8x16x4mm ZrO2 Sealed Dual Rubber Bearings for Precision Machinery and Hobby Projects with PTFE Cage Ideal For High-Precision RC Models Tiny Gearboxes Drones Robotic Joints and Laboratory Instrumentation30 Pack Full Ceramic Miniature Ball Bearings 8x16x4mm 30 pcs, 8x16x4 mm, full ceramic 688 2RS with PTFE cage These are high precision full ceramic miniature bearings featuring zirconia ceramic balls, zirconia races, and a PTFE cage. Theyre ideal for sealed ball bearing applications in precision instruments, robotics, medical devices, and hobby projects where low friction and corrosion resistance matter. Inner diameter: 8 mm Outer diameter: 16 mm

30-Pack Full Ceramic Miniature Ball Bearings 8x16x4mm
✔️ 30 pcs, 8x16x4 mm, full ceramic 688-2RS with PTFE cage

These are high-precision full ceramic miniature bearings featuring zirconia ceramic balls, zirconia races, and a PTFE cage. They’re ideal for sealed ball bearing applications in precision instruments, robotics, medical devices, and hobby projects where low friction and corrosion resistance matter.

✅ Inner diameter: 8 mm
✅ Outer diameter: 16 mm
✅ Width: 4 mm
✅ Ball material: Zirconia (ZrO2)
✅ Races: Zirconia (ZrO2)
✅ Cage: PTFE
✅ Pack size: 30 bearings

💡 What is a ceramic ball bearing and where should you use it?

Ceramic bearings excel in tough environments where speed, wear resistance, and corrosion resistance matter. - long-life, low-wear ceramic bearings for high-speed applications - zirconia ball bearings deliver corrosion resistance and low friction - sealed 688-2RS variants reduce contamination for clean environments - ideal for precision instruments, lab robotics, and outdoor gear
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 33838805758

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4.8 ★★★★★
Based on 303 reviews
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Verified Purchase
bchlvr
Natrona Heights, US
★★★★★ 5
No leak pads
Size: Regular, Style: 50 Count
No leak pads, good quality, thickness is good and decent price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
S
Verified Purchase
Susan E.
Battle Creek, US
★★★★★ 5
Price and product doing its job well
Size: Regular, Style: 50 Count
Perfect size and absorbtion is good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
M
Verified Purchase
mandee
Massapequa, US
★★★★★ 4
They're okay-ish. Not suitable for a lot of liquid.
Size: Regular, Style: 100 Count
I use these for my opossums. They work okay-ish, but I continue to use them for the quantity and price. They're not very large animals. Make sure you are changing them out after a single pee. These really can not handle a lot of liquid. My girls both refused litter training, and so puppy pads are my only option. If your animal has large pees, I do not recommend these because it will not be able to absorb it all, and you're gonna have a mess! Thats the word I have been looking for. They can't absorb a large amount of liquid.
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Reviewed in the United States on April 26, 2026
T
Verified Purchase
T. WILSON
Pawtucket, US
★★★★★ 5
GOOD PRODUCT AND PRICE
Size: Regular, Style: 100 Count
The puppy pee pads are very well made at a good price. I purchased the same size pads with the same count from a competitor of Amazon, and they were more expensive, much thinner and when I tried to unfold them, some would stick together and the pads would rip.
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Reviewed in the United States on May 24, 2026
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Verified Purchase
Denise
Chelsea, US
★★★★★ 5
Great for the price
Size: Regular, Style: 50 Count
These puppy pads are actually pretty good for the price I wasn’t expecting anything amazing but they do the job the absorbency is decent and it dries fast enough where my dog isn’t tracking mess everywhere the leak proof backing works most of the time and I haven’t had any major issues with it soaking through I also feel like the attractant helped a little with training because my dog started using them pretty quickly Only thing is if your dog pees a lot or goes near the edge it can leak a little and they are kind of thin compared to more expensive brands plus they slide around since there’s nothing on the bottom to hold them in place Overall I’d still buy them again they’re a good budget option especially for puppies or smaller dogs
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Reviewed in the United States on April 22, 2026

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