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Representative image of an RCScrewZ rubber-sealed bearing kit for ARRMA KRATON 4S BLX 1/10 Electric 4WD MT (ARA102690); exact bearing sizes and quantities vary by RC model.

Upgrade Your RC Car with Rubber Shielded Bearings for ARRMA KRATON 4S BLX | ara018r - 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 -

Rubber shielded RC bearings for sealed off-road protection against dirt dust debris and harsh terrain

What is included in a RCScrewZ rubber shielded RC bearing kit with model-specific bearings extras and storage case

Exact RC model fitment matters for rubber shielded bearing kits because bearing sizes vary by model version and trim

Need RC bearings replacement check by cleaning and inspecting bearings for gritty feel and movement

RC bearing replacement check for gritty bearings poor free spinning degraded performance and worn bearings

Not a random bearing assortment model-specific rubber shielded RC bearing kit with sizes selected for the listed RC model

Complete your RC refresh by pairing bearing kits with RCScrewZ stainless screw kits for durability maintenance and appearance

RCScrewZ metal and rubber shielded RC bearing kit features including extras storage case shielding and performance differences

See product description for included RC bearing sizes because bearing kit contents vary by compatible RC model

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 ara018r for ARRMA Kraton 4S BLX 1/10 Electric 4WD Brushless Speed Monster Truck (ARA102690, 102690) | SET

Name: RCScrewZ Rubber Shielded Bearing Kit ara018r for ARRMA Kraton 4S BLX 1/10 Electric 4WD Brushless Speed Monster Truck (ARA102690, 102690) | SET
Brand: RCScrewZ
SKU: ara018r
Price: 53.67 USD
Availability: InStock

RCScrewZSKU: ara018r

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

Fits: ARRMA KRATON 4S BLX 1/10 Electric 4WD MT (ARA102690)
OEM / model: ARA102690, 102690

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

In stock

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

RC model: ARRMA KRATON 4S BLX 1/10 Electric 4WD MT (ARA102690)
OEM / model number: ARA102690, 102690

Kit type: Rubber-Shielded Bearing Kit — Sealed for Off-Road Protection
Scale: 1:10
Power: Electric

View all verified kits for this model →

More compatibility details

RC brand: Arrma
Vehicle class: Land
Kit SKU: ara018r
Model series: KRATON, KRATON 4S, 4S BLX, 4X4, Speed Monster Truck

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 listed below for 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

Included bearing sizes for this kit:

5x8x2.5mm bearings
8x16x5mm bearings
10x15x4mm bearings
10x15x4mm flanged bearings
12x18x4mm bearings
15x21x4mm 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: ARRMA KRATON 4S BLX 1/10 Electric 4WD MT (ARA102690)
Compatible RC Brand: Arrma
RC Vehicle OEM / Model Number(s): ARA102690, 102690
RCScrewZ Kit Part Number: ara018r

Vehicle Compatibility Details

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

RC Vehicle OEM / Model Number(s): ARA102690, 102690
RC Chassis Compatibility: ARRMA KRATON 4S BLX 4X4 Platform (ARA102690, 102690)
Compatible Vehicle Type: 1/10 Electric 4WD Brushless Speed Monster Truck
Terrain Compatibility
Compatible Scale: 1:10
Compatible Fuel Type: Electric

What Is Included

Included bearing sizes for this Rubber-Sealed Bearing Kit:

5x8x2.5mm bearings
8x16x5mm bearings
10x15x4mm bearings
10x15x4mm flanged bearings
12x18x4mm bearings
15x21x4mm bearings

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: ARRMA
Fit: Model-specific fitment for ARRMA KRATON 4S BLX
Compatible RC Model/OEM Numbers: ARA102690, 102690
Scale: 1/10
Power Source / Fuel Type: Electric
Battery / Cell Count: 4S LiPo
Drive Type: 4WD
Vehicle Type: Brushless Speed Monster Truck
Chassis: ARRMA KRATON 4S BLX 4X4 Platform
Era: Contemporary Era (2010-2019)
OEM / Models: ARA102690, 102690
RC Model Terrain: Off-Road: Bashing, Trails & Race Tracks

This Kit Details:

SKU: ara018r
MPN: ara018r
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

Bearing Size Details:

5x8x2.5mm bearings
8x16x5mm bearings
10x15x4mm bearings
10x15x4mm flanged bearings
12x18x4mm bearings
15x21x4mm bearings

OEM / Model Code / Alias Coverage:

Designed for ARRMA KRATON 4S BLX model-code coverage: ARA102690, 102690.

Model Family Coverage:

Model and search-family terms include KRATON, KRATON 4S, 4S BLX, 4X4, Speed Monster Truck.

Release / Date Evidence:

Review / Announcement Date: April 25, 2019. Source-backed as a Big Squid RC new-product announcement for ARRMA KRATON 4X4 4S BLX, part number ARA102690.

Product Benefits:

Sealed bearing protection helps defend against dirt, dust, and debris during ARRMA bashing and outdoor running.
Better choice for off-road, dusty, dirty, clay, parking-lot, and debris-prone RC use when protection matters more than lowest rolling drag.

Reason to Purchase:

Choose rubber shielded bearings for this ARRMA model when sealed protection matters more than the lowest possible rolling resistance. They are the stronger fit for bashing, off-road abuse, dusty surfaces, and mixed-terrain running compared with metal shielded bearings tuned for cleaner low-drag use.

Fitment Note:

Confirm your ARRMA vehicle model number against ARA102690, 102690 before ordering. Do not assume fitment with other ARRMA variants unless the vehicle model code is listed here.

Search-Friendly Notes:

Helpful for buyers searching ARRMA parts, ARRMA screw kit, ARRMA bearing kit, ARRMA bearings, and ARRMA kraton 4s upgrade parts for J-M SUPPLIES / RCScrewZ compatibility.