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Representative image of an RCScrewZ metal-shielded bearing kit for Losi XX-4 Worlds Ed 1/10 Electric 4WD Buggy (LOSA0010, LOSA0011); exact bearing sizes and quantities vary by RC model.
Upgrade Your RC Car with Metal Shielded Bearings for Losi XX-4 XX-4 Worlds | los014b - High Performance Upgrade | Durable & Reliable - by J-M SUPPLIES
Infographic: 'Choose Wisely for Your Need for Speed' – Highlights Metal Shielded Bearings as the top choice for unbeatable on-road RC car performance -
Infographic: 'Choose Wisely for Off-Road Adventuring' – Recommends Rubber Sealed Bearings for maximum protection and enhanced off-road performance in RC vehicles -
Infographic: 'Choose Wisely for Off-Road Adventuring' – Recommends Rubber Sealed Bearings for maximum protection and enhanced off-road performance in RC vehicles -
Infographic: 'Choose Wisely for Your Need for Speed' – Highlights Metal Shielded Bearings as the top choice for unbeatable on-road RC car performance - los014b
Infographic: 'Choose Wisely for Off-Road Adventuring' – Recommends Rubber Sealed Bearings for maximum protection and enhanced off-road performance in RC vehicles - los014b
Infographic: 'What Matters Most to You? Performance on the Streets or Durability in the Dirt?' – Guides on selecting bearings to match your RC lifestyle, highlighting the importance of choosing based on whether your focus is speed on paved roads or resilience in off-road conditions - los014b
Infographic: 'Need Bearings? How to Check Your RC's Bearings for Replacement' – Instructions to remove, clean, and inspect bearings for gritty texture or improper movement, indicating the need for replacement - los014b
Step-by-Step Guide: Checking RC Bearings. 2. Assess if bearings feel gritty or aren't spinning freely. 3. Non-free spinning bearings impair RC performance. 4. Bearings not spinning freely may need replacement - los014b
RCScrewZ and J-M SUPPLIES offer high-quality RC bearing kits, available as metal shielded or rubber sealed options, suitable for diverse RC needs - los014b
Elevate Your RC Adventure! Image introducing Stainless Screw Kits as the Ultimate Upgrade. Offers enhanced durability, superior corrosion resistance, and a sleek look, making them a top choice for complementing high-quality bearing selections. Trusted by RC enthusiasts worldwide - los014b
Infographic on RCScrewZ Bearing Kits: Highlights features of both metal and rubber shielded bearing kits, detailing high-quality components suitable for various RC models. Covers standard, flanged, one-way, and thrust bearings included in kits, with extra spares. Explains the shielding and performance benefits of each type, tailored for specific RC model needs - los014b
Infographic reminder: Refer to the item description for more detailed information about the product - los014b
Infographic reminder: Refer to the item description for more detailed information about the product - los014b
Notice: Check the product description for detailed information on the specific bearing sizes included in this bearing kit - los014b
J-M SUPPLIES - RCScrewZ Metal Shielded Bearing Kit los014b for Losi XX-4/Worlds Ed RC Car | SET -
J-M SUPPLIES - RCScrewZ Metal Shielded Bearing Kit los014b for Losi XX-4/Worlds Ed RC Car | UPG -

Why Choose This Kit

Key features and intended use for this kit.

Shield type

Metal-Shielded (On-Road)

Performance focus

Low-drag, not sealed

Best suited for

Cleaner on-road / prepared surfaces

Metal-Shielded Bearings

RCScrewZ Metal Shielded Bearing Kit los014b for Team Losi XX-4 and XX-4 Worlds Edition 1/10 Electric 4WD Off-Road Buggy (LOSA0010, LOSA0011) | SET

RCScrewZSKU: los014b

Model-specific metal-shielded bearings for smooth, low-drag operation on cleaner on-road or prepared surfaces.

Fits: Losi XX-4 Worlds Ed 1/10 Electric 4WD Buggy (LOSA0010, LOSA0011)
OEM / model: LOSA0010, LOSA0011

US
Regular price
$53.67
Sale price
$53.67
Regular price
$59.95

In stock

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Confirm this kit fits your RCMatch the RC model and OEM/model number shown above to your vehicle.

Exact model check

Confirm This Fits Your RC

Match the RC model and OEM/model number below before ordering.

RC model
Losi XX-4 Worlds Ed 1/10 Electric 4WD Buggy (LOSA0010, LOSA0011)
OEM / model number
LOSA0010, LOSA0011
Kit type
Metal-Shielded Bearing Kit — Low-Drag for Cleaner Running
Scale
1:10
Power
Electric
View all verified kits for this model →
More compatibility details
RC brand
Losi
Terrain
Off-road
Vehicle class
Land
Kit SKU
los014b
Model series
XX-4, XX-4 Worlds Edition
Product information

Everything You Need Before Ordering

Review what is included, installation notes, shipping details, and complete kit information.

Kit Contents & Installation

What’s Included Model-specific bearing kit; review the listed sizes and quantities.
  • Bearing sizes listed below for this model-specific kit
  • Quantities and any spare bearings are included only when specifically confirmed in the product details.
  • Review the product-specific bearing sizes and styles below or in the full description.

Included bearing sizes for this kit:

    • 5x8x2.5mm Bearings (5)
    • 3/16 x 5/16 Bearings (5)
    • 3/16 x 3/8 Bearings (9)
    • 1/4 x 3/8 Bearings (5)
    • 1/2 x 3/4 Bearings (5)
Installation & Model NotesImportant instructions and model-specific guidance.

Seat bearings fully and squarely. Do not force them into the housing or overtighten the hardware that retains them.

Keep metal-shielded bearings clean and dry.

After cleaning and drying, apply a small amount of light bearing oil.

Details & Support

Kit Details Lower-drag metal shields for clean, dry running conditions.
Shield Type
Metal-Shielded Bearings
Performance Priority
Lower drag
Protection
Not sealed; best kept clean and dry
Best For
Cleaner on-road or prepared surfaces when lower drag is the priority
Not Ideal For
Dust, dirt, sand, mud, water, or frequent wet-condition use
Prefer Rubber-Sealed?
Choose Rubber-Sealed bearings when protection against dirt, dust, and debris matters more than the lowest possible drag.
Shipping & Returns Handling time, current delivery estimate, and return policy.
Free shipping on all U.S. orders (USPS Priority Mail).
Ships within 1–2 business days (Mon–Fri); some Saturday shipments by 12:00 PM ET.
Most orders ship from Canton, MI 48187. APO/FPO/DPO & PO Boxes welcome.
Priority Mail typically delivers in 2–3 business days (estimates; not guaranteed).
Easy 30-day returns with prepaid USPS label; refunds issued within 3 business days after the return is received.

Over 99% positive over ~14,000 orders on eBay (last 12 months) — as of October 2025. View on eBay

Full Product Description Read the complete product specifications and details.

Exact RC Model Fitment

Confirm the exact RC model and RC vehicle OEM/model number below before ordering.

Compatible RC Model
Losi XX-4 Worlds Ed 1/10 Electric 4WD Buggy (LOSA0010, LOSA0011)
Compatible RC Brand
Losi
RC Vehicle OEM / Model Number(s)
LOSA0010, LOSA0011
RCScrewZ Kit Part Number
los014b

Vehicle Compatibility Details

Review these vehicle details to help confirm compatibility with your RC model.

RC Vehicle OEM / Model Number(s)
LOSA0010, LOSA0011
RC Chassis Compatibility
Team Losi XX-4 4WD Belt-Drive Buggy
Compatible Vehicle Type
1/10 Electric 4WD Off-Road Buggy
Terrain Compatibility
Off-road
Compatible Scale
1:10
Compatible Fuel Type
Electric

What Is Included

Included bearing sizes for this Metal-Shielded Bearing Kit:

    • 5x8x2.5mm Bearings (5)
    • 3/16 x 5/16 Bearings (5)
    • 3/16 x 3/8 Bearings (9)
    • 1/4 x 3/8 Bearings (5)
    • 1/2 x 3/4 Bearings (5)

What Is Not Included

Only the bearings identified in the included-bearing-size list are part of this kit. 

The RC vehicle and separately sold parts are not included unless specifically listed.

Installation & Model Notes

Metal Shielded Bearing Kit Compatibility:

Quick Fit Summary:

  • Compatible Brand: Team Losi

  • Fit: Model-specific fitment for Team Losi XX-4 / XX-4 Worlds Edition

  • Compatible RC Model/OEM Numbers: LOSA0010, LOSA0011

  • Scale: 1/10

  • Power Source / Fuel Type: Electric

  • Battery / Cell Count: Not currently verified.

  • Drive Type: 4WD

  • Vehicle Type: Off-Road Buggy

  • Chassis: Team Losi XX-4 4WD Belt-Drive Buggy

  • Era: Golden Age (1990-1999)

  • OEM / Models: LOSA0010, LOSA0011

  • RC Model Terrain: Off-Road: Dirt, Clay & Carpet Tracks

This Kit Details:

  • SKU: los014b

  • MPN: los014b

  • Kit Type: Metal Shielded Bearing Kit

  • Bearing Type: Metal-Shielded (On-Road / Low-Drag)

  • Sealed Bearings: No

  • Water/Dust Protection: Low-drag, not sealed

  • Product Material: Carbon Chrome Steel Bearings

  • Product Color: Silver

Bearing Size Details:

  • 5x8x2.5mm Bearings (5)
  • 3/16 x 5/16 Bearings (5)
  • 3/16 x 3/8 Bearings (9)
  • 1/4 x 3/8 Bearings (5)
  • 1/2 x 3/4 Bearings (5)

OEM / Model Code / Alias Coverage: LOSA0010, LOSA0011

Model Family Coverage: XX-4, XX-4 Worlds Edition

Product Benefits:

  • Metal shielded bearings reduce friction for smooth, low-drag drivetrain performance.
  • Best for clean, dry, low-debris running, race prep, bench rebuilds, display builds, or controlled conditions.
  • Choose metal shielded bearings when the lowest practical rolling drag matters more than sealed contamination protection.

Fitment Note: Designed for the Team Losi XX-4 / XX-4 Worlds Edition listed above. Verify your exact model name and OEM/model code before ordering.

Search-Friendly Notes: Useful for Losi parts searches including losi screw kit, losi bearing kit, team losi parts, vintage team losi, and xx-4 / xx-4 worlds edition rebuild hardware.

Release Date: 1997 / 1999 Release

Metal-Shielded Bearing Kit Details

Review the bearing-kit details below before ordering.

RCScrewZ Kit Part Number
los014b
Product Brand
RCScrewZ
Shielding Type
Metal-Shielded (On-Road)
Sealed Bearing Status
No
Bearing Material
Carbon Chrome Bearings
Approximate Piece Count
Color
Silver

Before Ordering

  • Confirm your exact RC model, RC brand, and OEM/model number whenever possible.
  • Review the included-bearing-size list before purchase.
  • Read the installation and model notes before disassembly or installation.

Vehicle versions, chassis revisions, and model-year configurations can differ. 

Confirm fitment before purchase when your RC vehicle differs from the details shown above.

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Rubber-Sealed Bearing Kit

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Fits: Losi XX-4 Worlds Ed 1/10 Electric 4WD Buggy (LOSA0010, LOSA0011)
$53.67