Kyosho Big Boss Bearing Size List & Bearing Locations
Kyosho Big Boss Bearing Size List & Bearing Locations
Use this Kyosho Big Boss bearing size list to identify replacement RC bearings, OEM part references and bearing locations for the listed model. The complete kit includes 14 bearings. Key bearing sizes include 4x8x3, 5x10x4 and 8x12x3.5. Common bearing applications include small driveline or transmission support positions listed in the source kit, drivetrain, differential, wheel or transmission support positions listed in the source kit and larger shaft support positions listed in the source kit.
Vehicle Summary
- Brand: Kyosho
- Vehicle: Big Boss
- Total bearing count: 14
- OEM part numbers listed: BRG405, BRG003SUS, BRG407, BRG001TSB, BRG001SUS, BRG011
Bearing Size, Quantity and Application Table
The table below lists each bearing size from the complete kit, where it is used, and matching individual replacement bearing product links where available.
| Bearing size | Quantity | Application | Replacement product | OEM part numbers | Bearing type |
|---|---|---|---|---|---|
| 4x8x3 | 4 | 4 bearings are listed for small driveline or transmission support positions listed in the source kit, used for small driveline or transmission support positions listed in the source kit. | BRG405, BRG003SUS | Rubber sealed | |
| 5x10x4 | 8 | 8 bearings are listed for drivetrain, differential, wheel or transmission support positions listed in the source kit, used for drivetrain, differential, wheel or transmission support positions listed in the source kit. | BRG407, BRG001TSB, BRG001SUS | Rubber sealed | |
| 8x12x3.5 | 2 | 2 bearings are listed for larger shaft support positions listed in the source kit, used for larger shaft support positions listed in the source kit. | BRG011 | Rubber sealed |
Replacement Bearing Kits
Choose the complete kit for a full rebuild, or use the sub-kit links for assembly-specific replacement bearing kits.
| Kit | SKU | Type | Price | Product link |
|---|---|---|---|---|
| Kyosho Big Boss Complete Bearing Kit | 888RC-KYO-BIGBOSS-FULL-BRG | complete bearing kit | GBP 12.99 | View kit |
| Kyosho Big Boss Drivetrain Bearing Kit | 888RC-KYO-BIGBOSS-DRIVE-BRG | drivetrain bearing kit | GBP 40.16 | View kit |
Individual Replacement Bearings
| Size | Product | SKU | Used for | Product link |
|---|---|---|---|---|
| 4x8x3 | 4x8x3 MR84ZZ / MR842RS RC Bearing for Kyosho Big Boss (BRG405, BRG003SUS) | 888-RC | 888RC-BRG-4X8X3-KYO-BIGBOSS | small driveline or transmission support positions listed in the source kit | View bearing |
| 5x10x4 | 5x10x4 MR105ZZ / MR1052RS RC Bearing for Kyosho Big Boss (BRG407, BRG001TSB, BRG001SUS) | 888-RC | 888RC-BRG-5X10X4-KYO-BIGBOSS | drivetrain, differential, wheel or transmission support positions listed in the source kit | View bearing |
| 8x12x3.5 | 8x12x3.5 MR128ZZ / MR1282RS RC Bearing for Kyosho Big Boss (BRG011) | 888-RC | 888RC-BRG-8X12X35-KYO-BIGBOSS | larger shaft support positions listed in the source kit | View bearing |
Shop This Model
OEM Reference Guides
- Kyosho BRG405 bearing reference guide
- Kyosho BRG003SUS bearing reference guide
- Kyosho BRG407 bearing reference guide
- Kyosho BRG001TSB bearing reference guide
- Kyosho BRG001SUS bearing reference guide
- Kyosho BRG011 bearing reference guide
FAQ
What bearings does the Kyosho Big Boss use?
The listed Kyosho Big Boss bearings are 4x8x3, 5x10x4, 8x12x3.5.
How many bearings are in the Kyosho Big Boss?
The complete bearing kit includes 14 bearings for this vehicle.
What bearing sizes are used in the Kyosho Big Boss?
The bearing sizes listed are 4x8x3, 5x10x4, 8x12x3.5.
Are the bearings rubber sealed?
Yes. Every bearing in the Kyosho Big Boss full kit is listed as rubber sealed.
Can I buy individual replacement bearings?
Yes. Individual replacement bearings are listed for the Kyosho Big Boss by size and SKU.