Parts/Drivetrain/Bearings/ProTek RC 5x10x4mm Metal Shielded "Speed" Bearing (10)
ProTek RC 5x10x4mm Metal Shielded "Speed" Bearing (10)
ProTek RC

ProTek RC 5x10x4mm Metal Shielded "Speed" Bearing (10)

Part # PTK-100394.9(11)
Fits
Axial SCX10Traxxas TRX-4Team Associated RC10 B6Losi 22Team Associated RC10 B74Team Associated RC8BXRAY XB2Kyosho UltimaMugen MBX8Team Associated RC10 T6Team Associated RC10 SC6Losi 8IGHTAxial WraithTeam Associated RC8TTeam Associated RC10 B5XRAY XB4Mugen MBX8TKyosho Inferno MP10Team Associated RC10 SC5MSchumacher CATYokomo YZ-2Team Associated RC10 T5MArrma GraniteYokomo YZ-4XRAY XB8HB Racing D8SSD Trail KingXRAY XT2Axial RR10 BomberLosi 22SCTKyosho Inferno MP9XRAY T4Mugen MBX7Team Associated TC7Yokomo YZ-2 TTeam Associated RC10 B64HB Racing D8TMugen MGT7Axial YetiMugen MBX6Losi 8IGHT-TLosi TEN-SCTYokomo B-MAX2HPI SavageYokomo BD8Kyosho Inferno STSerpent S811 Cobra GTTeam Associated RC10 F6Mugen MRXSerpent Spyder SRX-4Yokomo BD7Kyosho Lazer ZXKyosho Inferno MP777Serpent S811 CobraYokomo B-MAX4Serpent S811 Cobra TKyosho Inferno MP7.5HB Racing D216XRAY NT1Axial Yeti SCOREMugen MBX5XRAY T2Team Associated Apex2Serpent Spyder SRX-2 MHSchumacher Mi5HB Racing TCXHB Racing TCXXHB Racing Pro 5Team Durango DEX410Team Durango DEX210FArrma FuryTeam Durango DETC410Vetta KarooAgama A215Agama A215 SVLosi XXXRB Products RB OneRB Products RB One RAgama A215ESerpent 966Kyosho V-OneLosi LSTLosi 810Yokomo Formula 001S-Workz S350 BX1S-Workz S350 BK1Vaterra Twin HammersHPI VentureHB Racing Lightning StadiumCEN GST 7.7Losi TEN-TOFNA Jammin X1-CROFNA Jammin X1-CRTSchumacher Mi1HB Racing R10Serpent 747S-Workz S35-2ES-Workz S350 BE1HoBao Hyper SSOFNA Hyper SSOFNA Hyper 7 TQHoBao Hyper 7 TQKyosho Scorpion XXLRedcat ShredderTeam Magic G4D Touring (Drift Spec)Sportwerks MayhemThunder Tiger EB4 S3Thunder Tiger ST-1Caster S10BVaterra V100STeam Magic E4RSII Touring CarTeam Magic G4JR Touring CarVaterra Glamis UnoARC R10Team Magic E6 TrooperRacers Edge Pro2 SC
Where to buy
$12.99
AMain Hobbies
Seen Oct 11, 2026
$12.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

This is a pack of ten 5x10x4mm metal shielded "Speed" 1/8 clutch bearings. ProTek R/C "Speed" bearings are high quality steel/chrome bearings designed for the R/C racing enthusiast.

These 5x10x4mm metal shielded bearings are the standard bearing for the 1/8th scale nitro clutches. Please check the manual that came with your vehicle for the correct size if you are not certain.

These are also used as wheel bearings in the Kyosho Lazer ZX-5 1/10th scale 4WD electric buggy.

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...

Reviews4.9 · 11 reviews

Merdith Roachon ProTek RC 5x10x4mm Metal Shielded "Speed" Bearing (10)

I agree these are the best $1.00 clutch bearings I've tried by far. The metal shield stays in place unlike most rubber sealed bearings and stay smooth and free over time. I can take these out and clean them with some denatured alcohol and blow them out and re-oil them and keep on using them. I was tired of constantly loosing shields with other brands and throwing them away.

2 found this helpful
Francisco Alberto Mijangos TopeteVerified owneron ProTek RC 5x10x4mm Metal Shielded "Speed" Bearing (10)

It holds the more powerful engine in the harder environment! Use it for bashing, practicing or even for that long Amain race, really good quality and a very low price tag, can't go wrong with this bearings

1 found this helpful
Scott DeMoorVerified owneron ProTek RC 5x10x4mm Metal Shielded "Speed" Bearing (10)

The best clutch bearings I have used thus far. They last way longer than any other brand that I have tried. I gave these a try last season after reading the reviews, and I was not disappointed.

1 found this helpful
AnonymousVerified owneron ProTek RC 5x10x4mm Metal Shielded "Speed" Bearing (10)

Great bearing for the price seem to hold up just as long as the pricey ones ive bought before

1 found this helpful
Steve NarringtonVerified owneron ProTek RC 5x10x4mm Metal Shielded "Speed" Bearing (10)

For the money$, these are the best clutch bell bearings I ever used! They are inexpensive but great quality!

1 found this helpful
What reviewers say

Reviewers consistently rate these metal shielded 5x10x4mm clutch bearings highly, with 10 of 11 reviews giving 5 out of 5 and one giving 4. Common praise centres on low price relative to performance, smooth running, and durability in clutch bell use, including bashing and racing. Several reviewers note the metal shields stay in place better than rubber sealed bearings, and one says the bearings can be cleaned, re-oiled and reused. One reviewer reports they hold up as well as more expensive bearings. Reviews are all for this specific 10-pack variant and describe use in 1:8 scale and off-road applications. No significant problems or disagreements are reported.

  • + Low price for the performance
  • + Smooth running over time
  • + Metal shields stay in place
  • + Durable in clutch bell use
  • − Few criticisms reported
  • − Long-term durability claims are based on limited use
Summary generated from the reviews above.

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