Trusted PayPal checkout — fast, secure, and familiar.

SAVE
$10.07
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Nexus 30 S Nitro Helicopter (21702, 21705); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Nexus 30 S Nitro Helicopter (21702, 21705); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Nexus 30 S Nitro Helicopter (21702, 21705); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Nexus 30 S Nitro Helicopter (21702, 21705); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Nexus 30 S Nitro Helicopter (21702, 21705); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Nexus 30 S Nitro Helicopter (21702, 21705); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Nexus 30 S Nitro Helicopter (21702, 21705); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Nexus 30 S Nitro Helicopter (21702, 21705); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Nexus 30 S Nitro Helicopter (21702, 21705); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Nexus 30 S Nitro Helicopter (21702, 21705); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Nexus 30 S Nitro Helicopter (21702, 21705); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Nexus 30 S Nitro Helicopter (21702, 21705); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Nexus 30 S Nitro Helicopter (21702, 21705); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Nexus 30 S Nitro Helicopter (21702, 21705); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Nexus 30 S Nitro Helicopter (21702, 21705); exact bearing sizes and quantities vary by RC model.

RCScrewZ Metal Shielded Bearing Kit kyo053b for Kyosho Nexus 30 S Nitro RC Helicopter (21702, 21705) | RCX

RCScrewZ

SKU: kyo053b

Regular price
$69.88
Sale price
$69.88
Regular price
$79.95
Shipping, stock & payment info
Quick snapshot of availability, estimated delivery, and our shipping/returns.

Available Quantity: 98

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

👇 👇 👇
View Cart & Checkout

This page shows the Metal-Shielded Bearing Kit for this RC model — view all compatible Screw and Bearing kits for this RC model by clicking this link:

Kyosho Nexus 30 S (#21702 / 21705) RC Helicopter — Compatible Kits by RCScrewZ (Screws & Bearings)

Pro tip: Most builders grab a Stainless Screw Kit and a Bearing Kit for this RC model so everything wears evenly.

Quick Fit Summary
  • Compatible Brand: Kyosho
  • RC Model: Kyosho Nexus 30 S Nitro Helicopter (21702, 21705)
  • Scale: 1:7
  • Power Source / Fuel Type: Nitro & Glow Fuel
  • Chassis: Kyosho Nexus 30 S nitro helicopter airframe (21702, 21705)
  • Era: Golden Age (1990-1999)
  • OEM / Models: 21702, 21705
Quick Fit Summary — Full Details

Quick Fit Summary

Key fit details for your RC model, plus what’s in this kit.

RC Model Fit & Specs

  • Compatible Brand: Kyosho
  • Fit: Kyosho Nexus 30 S Nitro Helicopter (21702, 21705)
  • Compatible RC Model Numbers: 21702 · 21705
  • Scale: 1:7
  • Power Source / Fuel Type: Nitro & Glow Fuel
  • Vehicle Type: Nitro RC Helicopter
  • Chassis: Kyosho Nexus 30 S nitro helicopter airframe (21702, 21705)
  • Era: Golden Age (1990-1999)
  • RC Model Terrain: Aerial: RC Helicopter Flight

This Kit Details

  • SKU: kyo053b
  • MPN: kyo053b
  • Product: Performance RC Bearing Rebuild Kit
  • Bearing Type: Metal-Shielded (On-Road)
  • Sealed Bearings: No
  • Water/Dust Protection: Low-drag, not sealed
  • Product Material: Carbon Chrome Bearings
  • Product Color: Silver
  • Bearing Sizes Included: 3x6x2.5mm bearings · 3x6x2.5mm flanged bearings · 3x8x4mm bearings · 5x10x4mm bearings · 5x13x4mm bearings · 5x16x5mm bearings · 6x10x3mm bearings · 6x12x4mm bearings · 8x12x3.5mm bearings · 8x14x4mm bearings · 8x16x5mm bearings · 10x15x4mm bearings · 12x21x5mm bearings
  • Tips: Seat fully · Do not over-tighten · After cleaning: add light oil
  • Install: ≈60 min; recheck torque after first run
  • Country of Origin: United States
Full Product Description

Exact RC Model Fitment

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

Compatible RC Model
Kyosho Nexus 30 S Nitro Helicopter (21702, 21705)
Compatible RC Brand
Kyosho
RC Vehicle OEM / Model Number(s)
21702, 21705
RCScrewZ Kit Part Number
kyo053b

Vehicle Compatibility Details

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

RC Vehicle OEM / Model Number(s)
21702, 21705
RC Chassis Compatibility
Kyosho Nexus 30 S nitro helicopter airframe (21702, 21705)
Compatible Vehicle Type
Nitro RC Helicopter
Terrain Compatibility
Compatible Scale
1:7
Compatible Fuel Type
Nitro & Glow Fuel

What Is Included

Included bearing sizes for this Metal-Shielded Bearing Kit:

  • 3x6x2.5mm bearings
  • 3x6x2.5mm flanged bearings
  • 3x8x4mm bearings
  • 5x10x4mm bearings
  • 5x13x4mm bearings
  • 5x16x5mm bearings
  • 6x10x3mm bearings
  • 6x12x4mm bearings
  • 8x12x3.5mm bearings
  • 8x14x4mm bearings
  • 8x16x5mm bearings
  • 10x15x4mm bearings
  • 12x21x5mm 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

Metal Shielded Bearing Kit Compatibility:

Quick Fit Summary:

  • Compatible Brand: Kyosho

  • Fit: Model-specific fitment for Kyosho Nexus 30 S.

  • Compatible RC Model/OEM Numbers: Kyosho Nexus 30 S (21702, 21705)

  • Scale: 1/7

  • Power Source / Fuel Type: Nitro

  • Battery / Cell Count: Not applicable - nitro powered.

  • Drive Type: Main rotor drive

  • Vehicle Type: Nitro RC Helicopter

  • Chassis: Kyosho Nexus 30 S nitro helicopter airframe (21702, 21705)

  • Era: Golden Age (1990-1999)

  • OEM / Models: 21702, 21705

  • RC Model Terrain: Aerial: RC Helicopter Flight

This Kit Details:

  • SKU: kyo053b

  • MPN: kyo053b

  • Kit Type: Metal Shielded Bearing Kit

  • 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 Size Details: 3x6x2.5mm bearings, 3x6x2.5mm flanged bearings, 3x8x4mm bearings, 5x10x4mm bearings, 5x13x4mm bearings, 5x16x5mm bearings, 6x10x3mm bearings, 6x12x4mm bearings, 8x12x3.5mm bearings, 8x14x4mm bearings, 8x16x5mm bearings, 10x15x4mm bearings, 12x21x5mm bearings

OEM / Model Code / Alias Coverage:

Kyosho Nexus 30 S (21702, 21705). Verify the OEM/model number in your manual, box, or chassis paperwork to confirm fitment before ordering.

Model Family Coverage:

Nexus, Nexus 30, Nexus 30 S

Product Benefits:

  • Metal shielded bearings are tuned for lower rolling resistance and smoother drivetrain rotation on cleaner surfaces.

  • Best choice for on-road, carpet, display builds, light-duty use, or racers who prefer low-drag performance over maximum contamination protection.

  • Maintenance tip: clean and re-oil metal shielded bearings regularly for best performance.

Fitment Note:

This is a model-specific RCScrewZ kit for Kyosho Nexus 30 S. Match your Kyosho OEM/model number or model series to 21702, 21705 before ordering.

Search-Friendly Notes:

Common buyer searches include Kyosho Nexus 30 S parts, Kyosho Nexus 30 S screw kit, Kyosho Nexus 30 S bearings, and Kyosho RC replacement hardware.

Metal-Shielded Bearing Kit Details

Review the bearing-kit details below before ordering.

RCScrewZ Kit Part Number
kyo053b
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.

Fits: Kyosho Nexus 30 S Nitro Helicopter (21702, 21705)
$69.88

Trusted PayPal checkout — fast, secure, and familiar.