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Representative image of an RCScrewZ rubber-sealed bearing kit for Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353); exact bearing sizes and quantities vary by RC model.

Upgrade Your RC Car with Rubber Shielded Bearings for Kyosho Inferno ST-RR | kyo137r - 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: '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 - kyo137r

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 - kyo137r

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 - kyo137r

RCScrewZ and J-M SUPPLIES offer high-quality RC bearing kits, available as metal shielded or rubber sealed options, suitable for diverse RC needs - kyo137r

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 - kyo137r

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 - kyo137r

Infographic reminder: Refer to the item description for more detailed information about the product - kyo137r

Notice: Check the product description for detailed information on the specific bearing sizes included in this bearing kit - kyo137r

Why Choose This Kit

Key features and intended use for this kit.

Shield type

Rubber-Sealed (Off-Road)

Protection focus

Sealed against dirt & splash

Best suited for

Off-road / dirty conditions

Rubber-Shielded Bearings

RCScrewZ Rubber Shielded Bearing Kit kyo137r for Kyosho Inferno ST-RR 1/8 Nitro GP 4WD Off-Road Competition Truggy (31353) | SET

Name: RCScrewZ Rubber Shielded Bearing Kit kyo137r for Kyosho Inferno ST-RR 1/8 Nitro GP 4WD Off-Road Competition Truggy (31353) | SET
Brand: RCScrewZ
SKU: kyo137r
Price: 53.67 USD
Availability: InStock

RCScrewZSKU: kyo137r

Rubber-shielded bearings for land-based RC use where added protection from dust, dirt, sand, and mud is preferred.

Fits: Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353)
OEM / model: 31353

Regular price: $53.67
Sale price: $53.67
Regular price: ~~$59.95~~
Unit price: per

In stock

View Cart

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

RC model: Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353)
OEM / model number: 31353

Kit type: Rubber-Shielded Bearing Kit — Sealed for Off-Road Protection
Scale: 1:8
Power: Nitro & Glow Fuel

View all verified kits for this model →

More compatibility details

RC brand: Kyosho
Vehicle class: Land
Kit SKU: kyo137r
Model series: Inferno, Inferno ST-RR, ST-RR

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 set with one spare of each included size.

All bearing sizes assigned to this model-specific kit
One spare of each included size
Bearing styles vary by RC model and may include standard, flanged, one-way, or thrust bearings

Installation & Model NotesInstallation, cleaning, inspection, and model-specific guidance.

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

After dusty, muddy, or wet runs, clean the bearing exterior and dry it thoroughly.

Inspect the bearings for roughness, binding, noise, or excessive play before reuse; service or replace them as needed.

Details & Support

Kit Details Rubber-sealed protection for off-road, dusty, dirty, and muddy running conditions.

Seal Type: Rubber-Sealed Bearings
Protection Priority: Improved protection against dirt and splash; not waterproof
Best For: Off-road use, dust, dirt, sand, mud, and lower-maintenance protection
Performance Tradeoff: Protection is prioritized over the lowest possible drag
Not Ideal For: Clean, dry on-road or prepared-surface use when lower drag is the priority
Prefer Metal-Shielded?: Choose Metal-Shielded bearings for cleaner on-road or prepared surfaces when lower drag is the priority.

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: Kyosho Inferno ST-RR 1/8 Nitro 4WD Truggy (31353)
Compatible RC Brand: Kyosho
RC Vehicle OEM / Model Number(s): 31353
RCScrewZ Kit Part Number: kyo137r

Vehicle Compatibility Details

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

RC Vehicle OEM / Model Number(s): 31353
RC Chassis Compatibility: Kyosho Inferno ST-RR Truggy Chassis (31353)
Compatible Vehicle Type: 1/8 Nitro GP 4WD Competition Truggy
Terrain Compatibility
Compatible Scale: 1:8
Compatible Fuel Type: Nitro & Glow Fuel

What Is Included

Included bearing sizes for this Rubber-Sealed Bearing Kit:

Note: The specific bearing sizes will be listed soon. In the meantime, please contact us for detailed information about the sizes included in this kit. We're happy to assist you!

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

Rubber Shielded Bearing Kit Compatibility:

Quick Fit Summary:

Compatible Brand: Kyosho
Fit: Model-specific fitment for Kyosho Inferno ST-RR 1/8 Nitro GP 4WD Competition Truggy.
Compatible RC Model/OEM Numbers: 31353
Scale: 1/8
Power Source / Fuel Type: Nitro GP
Battery / Cell Count: Not applicable
Drive Type: 4WD
Vehicle Type: 1/8 Nitro GP 4WD Competition Truggy
Chassis: Kyosho Inferno ST-RR Truggy Chassis (31353)
Era: Modern Transition (2000-2009)
OEM / Models: 31353
RC Model Terrain: Off-Road: Dirt, Clay & Truggy Tracks

This Kit Details:

SKU: kyo137r
MPN: kyo137r
Kit Type: Rubber Shielded Bearing Kit
Bearing Type: Rubber-Shielded Bearings (Off-Road / Sealed)
Sealed Bearings: Yes
Water/Dust Protection: Sealed protection against dirt, dust, and debris
Product Material: Carbon Chrome Steel Bearings
Product Color: Silver

OEM / Model Code / Alias Coverage:

Verified OEM / Model Codes: 31353
Model Family Coverage: Kyosho Inferno ST-RR

Bearing Size Details: Not currently verified.

Product Benefits:

Rubber shielded bearings add sealed protection against dirt, dust, and debris for outdoor and off-road RC use.
Choose this kit when contamination protection matters more than the lowest possible rolling drag.

Reason to Purchase:

Rubber shielded bearings are the better choice for dirty, dusty, loose, or mixed-surface RC running because they add sealed protection compared with metal shielded bearings tuned for lower drag.

Fitment Note: