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Representative image of an RCScrewZ metal-shielded bearing kit for HPI Racing Nitro RS4 3 RTR 1/10 4WD Rally Car (510, HPI510); exact bearing sizes and quantities vary by RC model.
Upgrade Your RC Car with Metal Shielded Bearings for HPI Nitro RS4 3 RTR 1/10 | hpi015b - 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 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 - hpi015b
Infographic: 'Choose Wisely for Off-Road Adventuring' – Recommends Rubber Sealed Bearings for maximum protection and enhanced off-road performance in RC vehicles - hpi015b
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 - hpi015b
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 - hpi015b
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 - hpi015b
RCScrewZ and J-M SUPPLIES offer high-quality RC bearing kits, available as metal shielded or rubber sealed options, suitable for diverse RC needs - hpi015b
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 - hpi015b
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 - hpi015b
Infographic reminder: Refer to the item description for more detailed information about the product - hpi015b
Infographic reminder: Refer to the item description for more detailed information about the product - hpi015b
Notice: Check the product description for detailed information on the specific bearing sizes included in this bearing kit - hpi015b
J-M SUPPLIES RC Parts Store - RCScrewZ Metal Shielded Bearing Kit hpi015b for HPI Racing RS4 3 Nitro RTR RC Car (#510) | PRO

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 hpi015b for HPI Racing Nitro RS4 3 RTR 1/10 Nitro 4WD On-Road Touring / Rally Car (#510, HPI510, Nitro RS4 3, RS4 3 RTR) | SET

(1)
RCScrewZSKU: hpi015b

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

Fits: HPI Racing Nitro RS4 3 RTR 1/10 4WD Rally Car (510, HPI510)
OEM / model: 510, HPI510, HPI Racing 510, Nitro RS4 3, RS4 3 RTR

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

In stock

View Cart

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
HPI Racing Nitro RS4 3 RTR 1/10 4WD Rally Car (510, HPI510)
OEM / model number
510, HPI510, HPI Racing 510, Nitro RS4 3, RS4 3 RTR
Kit type
Metal-Shielded Bearing Kit — Low-Drag for Cleaner Running
Scale
1:10
Power
Nitro & Glow Fuel
View all verified kits for this model →
More compatibility details
RC brand
HPI Racing
Vehicle class
Land
Kit SKU
hpi015b
Model series
RS4
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

    • 5x10x4mm bearings .........3

    • 5x11x4mm bearings .........12

    • 10x15x4mm bearings .......9

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
HPI Racing Nitro RS4 3 RTR 1/10 4WD Rally Car (510, HPI510)
Compatible RC Brand
HPI Racing
RC Vehicle OEM / Model Number(s)
510, HPI Racing 510, HPI510, Nitro RS4 3, RS4 3 RTR
RCScrewZ Kit Part Number
hpi015b

Vehicle Compatibility Details

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

RC Vehicle OEM / Model Number(s)
510, HPI Racing 510, HPI510, Nitro RS4 3, RS4 3 RTR
RC Chassis Compatibility
Nitro RS4 3 / RS4 3 RTR shaft-drive chassis
Compatible Vehicle Type
Rally Car
Terrain Compatibility
Compatible Scale
1:10
Compatible Fuel Type
Nitro & Glow Fuel

What Is Included

Included bearing sizes for this Metal-Shielded Bearing Kit:

    • 5x8x2.5mm bearings ........5

    • 5x10x4mm bearings .........3

    • 5x11x4mm bearings .........12

    • 10x15x4mm bearings .......9

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

Compatibility Title: HPI Racing Nitro RS4 3 RTR 1/10 Nitro Rally Car Compatibility

Quick Fit Summary:

  • Compatible Brand: HPI Racing

  • Fit: Model-specific for the listed RC model/platform: Nitro RS4 3 RTR

  • Compatible RC Model/OEM Numbers: 510, HPI510, HPI Racing 510, Nitro RS4 3, RS4 3 RTR

  • Scale: 1/10

  • Power Source / Fuel Type: Nitro

  • Battery / Cell Count: Not applicable.

  • Drive Type: 4WD

  • Vehicle Type: Rally Car

  • Chassis: Nitro RS4 3 / RS4 3 RTR shaft-drive chassis

  • Era: Modern Transition (2000-2009)

  • OEM / Models: 510, HPI510, HPI Racing 510, Nitro RS4 3, RS4 3 RTR

  • RC Model Terrain: On-Road

This Kit Details:

  • SKU: hpi015b

  • MPN: hpi015b

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

  • Sealed Bearings: No

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

  • Product Material: Carbon Chrome Steel Bearings

  • Product Color: Silver

  • Bearing Sizes Included: 5x8x2.5mm (5); 5x10x4mm (3); 5x11x4mm (12); 10x15x4mm (9)

Release / Catalog Date: 2002

Product Benefits: This HPI bearings kit uses metal shielded, low-drag bearings for Nitro RS4 3 RTR maintenance and clean, dry, low-debris running. The bearings help reduce friction in drivetrain and rolling assemblies, with reduced friction support for smooth on-road performance.

Fitment Note: Match each included bearing size to the removed factory bearing and confirm smooth rotation before final assembly.

OEM Alias Coverage: 510, HPI510, HPI Racing 510, Nitro RS4 3, RS4 3 RTR

Terrain Compatibility: On-Road

Metal-Shielded Bearing Kit Details

Review the bearing-kit details below before ordering.

RCScrewZ Kit Part Number
hpi015b
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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Stainless Screw Kit

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Current price: $33.97 Compare-at price: $34.95 Save $0.98 In stock View Stainless Screw Kit

Rubber-Sealed Bearing Kit

For HPI Racing Nitro RS4 3 RTR 1/10 4WD Rally Car (510, HPI510) OEM/model: 510, HPI510, HPI Racing 510, Nitro RS4 3, RS4 3 RTR
Current price: $53.67 Compare-at price: $59.95 Save $6.28 In stock View Rubber-Sealed Kit
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Fits: HPI Racing Nitro RS4 3 RTR 1/10 4WD Rally Car (510, HPI510)
$53.67