Traxxas TRX-4 Bearing Size List & Bearing Locations

Traxxas TRX-4 Bearing Size List & Bearing Locations

Use this Traxxas TRX-4 bearing size list to identify replacement RC bearings, OEM part references and bearing locations for the listed 1/10 scale model. The complete kit includes 40 bearings. Key bearing sizes include 4x10x4, 5x8x2.5, 5x10x4, 5x11x4, 6x12x4 and 6x13x5. Common bearing applications include portal axles or transmission, transmission/shift or steering positions, transmission or driveline, portal axles and driveline, transmission/differential input shafts and axles and transmission.

Vehicle Summary

  • Brand: Traxxas
  • Vehicle: TRX-4
  • Scale: 1/10
  • Total bearing count: 40
  • OEM part numbers listed: 5114A, 5116A, 5117A, 5180A, 5103A

Bearing Size, Quantity and Application Table

The table below lists each bearing size from the complete kit, where it is used, and matching individual replacement bearing product links where available.

Bearing size Quantity Application Replacement product OEM part numbers Bearing type
4x10x4 4 4 bearings are listed for portal axles or transmission, used for supports rotating gear shafts. No individual product listed Rubber sealed
5x8x2.5 3 3 bearings are listed for transmission/shift or steering positions, used for supports small rotating shafts. No individual product listed 5114A Rubber sealed
5x10x4 1 1 bearing is listed for transmission or driveline, used for supports rotating shaft. No individual product listed Rubber sealed
5x11x4 12 12 bearings are listed for portal axles and driveline, used for supports portal/wheel and driveline rotation. 5116A Rubber sealed
6x12x4 4 4 bearings are listed for transmission/differential input shafts, used for supports rotating input shafts. No individual product listed 5117A Rubber sealed
6x13x5 6 6 bearings are listed for axles and transmission, used for supports rotating shafts/gears. 5180A Rubber sealed
7x14x5 2 2 bearings are listed for transmission or transfer case, used for supports high-load shaft rotation. No individual product listed 5103A Rubber sealed
10x15x4 4 4 bearings are listed for transmission/portal gear supports, used for supports gear and shaft rotation. No individual product listed Rubber sealed
12x18x4 2 2 bearings are listed for driveline supports, used for supports rotating shafts. No individual product listed Rubber sealed
15x21x4 2 2 bearings are listed for driveline supports, used for supports high-load rotating shafts. No individual product listed Rubber sealed

Replacement Bearing Kits

Choose the complete kit for a full rebuild, or use the sub-kit links for assembly-specific replacement bearing kits.

Kit SKU Type Price Product link
Traxxas TRX-4 Complete Bearing Kit 888RC-TRX-TRX4-FULL-BRG complete bearing kit GBP 36.99 View kit
Traxxas TRX-4 Portal Axle Bearing Kit 888RC-TRX-TRX4-PORTAL-BRG portal axle bearing kit GBP 22.12 View kit
Traxxas TRX-4 Diff Bearing Kit 888RC-TRX-TRX4-DIFF-BRG diff bearing kit GBP 17.12 View kit
Traxxas TRX-4 Transmission Bearing Kit 888RC-TRX-TRX4-TRANS-BRG transmission bearing kit GBP 29.21 View kit

Individual Replacement Bearings

Size Product SKU Used for Product link
5x11x4 5x11x4 MR115ZZ / MR1152RS RC Bearing for Traxxas TRX-4 (5116A) | 888-RC 888RC-BRG-5X11X4-TRX5116A portal axles; driveline View bearing
6x13x5 6x13x5 MR136ZZ / MR1362RS RC Bearing for Traxxas TRX-4 (5180A) | 888-RC 888RC-BRG-6X13X5-TRX5180A portal axles; transmission View bearing

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OEM Reference Guides

FAQ

What bearings does the Traxxas TRX-4 use?

The listed Traxxas TRX-4 bearings are 4x10x4, 5x8x2.5, 5x10x4, 5x11x4, 6x12x4, 6x13x5, 7x14x5, 10x15x4, 12x18x4, 15x21x4.

How many bearings are in the Traxxas TRX-4?

The complete bearing kit includes 40 bearings for this vehicle.

What bearing sizes are used in the Traxxas TRX-4?

The bearing sizes listed are 4x10x4, 5x8x2.5, 5x10x4, 5x11x4, 6x12x4, 6x13x5, 7x14x5, 10x15x4, 12x18x4, 15x21x4.

Are the bearings rubber sealed?

Yes. Every bearing in the Traxxas TRX-4 full kit is listed as rubber sealed.

Can I buy individual replacement bearings?

Yes. Individual replacement bearings are listed for the Traxxas TRX-4 by size and SKU.