Parts/Drivetrain/Bearings/ProTek RC 8x14x4mm Rubber Sealed Flanged "Speed" Bearing (4)
ProTek RC 8x14x4mm Rubber Sealed Flanged "Speed" Bearing (4)
ProTek RC

ProTek RC 8x14x4mm Rubber Sealed Flanged "Speed" Bearing (4)

Part # PTK-100112.6(5)
Where to buy
$5.99
AMain Hobbies
Seen Oct 12, 2026
$5.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

This is a pack of four 8x14x4mm rubber sealed flanged "Speed" ball bearings. ProTek R/C "Speed" bearings are high quality steel/chrome bearings designed for the R/C racing enthusiast.

These 8x14x4 metal shielded bearings are the standard bearing for the Team Losi 8ight differential outdrives. Please check the manual that came with your vehicle for the correct size if you are not certain.

ProTek R/C is an AMain Sports & Hobbies brand.
CA Residents Prop 65 Warning WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...

Reviews2.6 · 5 reviews

wade toombsVerified owneron ProTek RC 8x14x4mm Rubber Sealed Flanged "Speed" Bearing (4)

I also have these and did not last not 3 tanks. Came apart

2 found this helpful
AnonymousVerified owneron ProTek RC 8x14x4mm Rubber Sealed Flanged "Speed" Bearing (4)

I personally never have had a problem with the ProTek bearings. I have been using them for a few years now in my 1/8 scale Losi buggy and truggy. I would recommend them to all.

1 found this helpful
AnonymousVerified owneron ProTek RC 8x14x4mm Rubber Sealed Flanged "Speed" Bearing (4)

Horrible, they didn't last a race weekend, one came totally apart and I couldn't finish my main. I don't have this problem with the stock Losi bearings. The real bargain is spending the money on good bearings!

1 found this helpful
Andres RoldanVerified owneron ProTek RC 8x14x4mm Rubber Sealed Flanged "Speed" Bearing (4)

I also have these, buy another brand,don´t waste your money on these

1 found this helpful
gerrenn jenningson ProTek RC 8x14x4mm Rubber Sealed Flanged "Speed" Bearing (4)

No problems at all. They performed just as I expected.

What reviewers say

Reviews are split. Three reviewers rated the bearings 1/5 and reported them failing quickly, with one describing a bearing coming apart and another saying they did not last a race weekend or three tanks of fuel. Two reviewers rated them 5/5, reporting no problems over several years of use in 1/8 scale buggy and truggy or performance as expected. The main recurring issue is durability under racing use, with the negative accounts describing bearings failing and one suggesting a different brand. Reviews concern this 8x14x4mm flanged Speed bearing set of four. Sample size is small and reviewer usage is limited.

  • + Long service life for some owners
  • + Performs as expected
  • + No problems reported by some users
  • − Bearings failing quickly under racing use
  • − Bearing reported coming apart
  • − Some owners prefer other brands
Summary generated from the reviews above.

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