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Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Caliber M50 Class Nitro RC Helicopter (21943); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Caliber M50 Class Nitro RC Helicopter (21943); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Caliber M50 Class Nitro RC Helicopter (21943); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Caliber M50 Class Nitro RC Helicopter (21943); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Caliber M50 Class Nitro RC Helicopter (21943); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Caliber M50 Class Nitro RC Helicopter (21943); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Caliber M50 Class Nitro RC Helicopter (21943); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Caliber M50 Class Nitro RC Helicopter (21943); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Caliber M50 Class Nitro RC Helicopter (21943); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Caliber M50 Class Nitro RC Helicopter (21943); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Caliber M50 Class Nitro RC Helicopter (21943); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Caliber M50 Class Nitro RC Helicopter (21943); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Caliber M50 Class Nitro RC Helicopter (21943); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Caliber M50 Class Nitro RC Helicopter (21943); exact bearing sizes and quantities vary by RC model.
Representative image of an RCScrewZ metal-shielded bearing kit for Kyosho Caliber M50 Class Nitro RC Helicopter (21943); exact bearing sizes and quantities vary by RC model.

RCScrewZ Metal Shielded Bearing Kit kyo076b for Kyosho Caliber M50 Class Nitro RC Helicopter (21943) | RCX

RCScrewZ

SKU: kyo076b

Regular price
$69.88
Sale price
$69.88
Regular price
$79.95
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Available Quantity: 98

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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 Caliber M50 (#21943) 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 Caliber M50 Class Nitro RC Helicopter (21943)
  • Scale: 1:8
  • Power Source / Fuel Type: Nitro & Glow Fuel
  • Chassis: Kyosho Caliber M50 helicopter (21943)
  • Era: Not currently verified
  • OEM / Models: 21943
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 Caliber M50 Class Nitro RC Helicopter (21943)
  • Compatible RC Model Numbers: 21943
  • Scale: 1:8
  • Power Source / Fuel Type: Nitro & Glow Fuel
  • Vehicle Type: Class M50 Nitro RC Helicopter
  • Chassis: Kyosho Caliber M50 helicopter (21943)
  • Era: Not currently verified
  • RC Model Terrain: Aerial Use

This Kit Details

  • SKU: kyo076b
  • MPN: kyo076b
  • 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: 2.5 x 2.4 flanged bearings · 3x7x3mm bearings · 3x8x4mm flanged bearings · 4x7x2.5mm flanged bearings · 4x8x3mm bearings · 5x10x4mm bearings · 5x11x5mm bearings · 5x14x5mm bearings · 6x13x5mm bearings · 8x16 thrust bearing · 10x19x5mm 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 Caliber M50 Class Nitro RC Helicopter (21943)
Compatible RC Brand
Kyosho
RC Vehicle OEM / Model Number(s)
21943
RCScrewZ Kit Part Number
kyo076b

Vehicle Compatibility Details

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

RC Vehicle OEM / Model Number(s)
21943
RC Chassis Compatibility
Kyosho Caliber M50 helicopter (21943)
Compatible Vehicle Type
Class M50 Nitro RC Helicopter
Terrain Compatibility
Compatible Scale
1:8
Compatible Fuel Type
Nitro & Glow Fuel

What Is Included

Included bearing sizes for this Metal-Shielded Bearing Kit:

    • 2.5 x 2.4 flanged bearings
    • 3x7x3mm bearings
    • 3x8x4mm flanged bearings
    • 4x7x2.5mm flanged bearings
    • 4x8x3mm bearings
    • 5x10x4mm bearings
    • 5x11x5mm bearings
    • 5x14x5mm bearings
    • 6x13x5mm bearings
    • 8x16 thrust bearing
    • 10x19x5mm 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 Caliber M50 Class Nitro RC Helicopter, OEM/model code 21943.

  • Compatible RC Model/OEM Numbers: 21943

  • Scale: Not currently verified

  • Power Source / Fuel Type: Nitro

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

  • Drive Type: Not currently verified

  • Vehicle Type: Class M50 Nitro RC Helicopter

  • Chassis: Kyosho Caliber M50 helicopter (21943)

  • Era: Not currently verified

  • OEM / Models: 21943

  • RC Model Terrain: Aerial Use

This Kit Details:

  • SKU: kyo076b

  • MPN: kyo076b

  • 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

OEM / Model Code / Alias Coverage:

  • 21943

Model Family Coverage:

  • Caliber
  • Caliber M50

Product Benefits:

  • Metal shielded bearings are tuned for lower rolling drag and smooth drivetrain feel in cleaner running conditions.
  • Best for race prep, display builds, on-road use, or buyers who prefer reduced friction over maximum contamination protection.

Bearing Size Details:

  • 2.5 x 2.4 flanged bearings
  • 3x7x3mm bearings
  • 3x8x4mm flanged bearings
  • 4x7x2.5mm flanged bearings
  • 4x8x3mm bearings
  • 5x10x4mm bearings
  • 5x11x5mm bearings
  • 5x14x5mm bearings
  • 6x13x5mm bearings
  • 8x16 thrust bearing
  • 10x19x5mm bearings

Fitment Note: Screw kit note: this legacy screw-kit fitment is treated as a metric conversion; metal parts may need re-tapping for metric threads and axle wheel nuts remain standard thread.

Release Date: Not currently verified.

Search-Friendly Notes: Compatible with Kyosho builders searching by model name, series, and OEM/model number for the correct RCScrewZ screw kit or bearing kit.

Metal-Shielded Bearing Kit Details

Review the bearing-kit details below before ordering.

RCScrewZ Kit Part Number
kyo076b
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 Caliber M50 Class Nitro RC Helicopter (21943)
$69.88
Back to Kyosho Caliber M50 (#21943) RC Helicopter — Compatible Kits by RCScrewZ (Screws & Bearings)

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