ARRMA Big Rock 3S Bearing Size List & Bearing Locations
ARRMA Big Rock 3S Bearing Size List & Bearing Locations
Use this ARRMA Big Rock 3S bearing size list to identify replacement RC bearings, OEM part references and bearing locations for the listed 1/10 scale model. The complete kit includes 26 bearings. Key bearing sizes include 5x8x2.5, 5x10x4, 6x12x4, 10x15x4, 10x15x4 flanged and 12x18x4. Common bearing applications include small shaft and steering support positions, transmission and gearbox shaft positions, differential input and pinion shaft positions, driveline and gear support positions, flanged driveline support position and front and rear hubs.
Vehicle Summary
- Brand: ARRMA
- Vehicle: Big Rock 3S
- Scale: 1/10
- Total bearing count: 26
- OEM part numbers listed: ARA610044
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 |
|---|---|---|---|---|---|
| 5x8x2.5 | 2 | 2 bearings are listed for small shaft and steering support positions, used for supports small rotating shafts. | Rubber sealed | ||
| 5x10x4 | 4 | 4 bearings are listed for transmission and gearbox shaft positions, used for supports gearbox and power module rotation. | Rubber sealed | ||
| 6x12x4 | 4 | 4 bearings are listed for differential input and pinion shaft positions, used for supports differential input rotation. | Rubber sealed | ||
| 10x15x4 | 6 | 6 bearings are listed for driveline and gear support positions, used for supports rotating driveline assemblies. | Rubber sealed | ||
| 10x15x4 flanged | 1 | 1 bearing is listed for flanged driveline support position, used for supports flanged rotating assembly. | Rubber sealed | ||
| 12x18x4 | 8 | 8 bearings are listed for front and rear hubs, used for supports wheel axle rotation. | ARA610044 | Rubber sealed | |
| 15x21x4 | 1 | 1 bearing is listed for larger driveline support positions, used for supports larger rotating driveline assemblies. | 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 |
|---|---|---|---|---|
| ARRMA Big Rock 3S Complete Bearing Kit | 888RC-ARA-BIGROCK3S-FULL-BRG | complete bearing kit | GBP 24.99 | View kit |
| ARRMA Big Rock 3S Hub Bearing Kit | 888RC-ARA-BIGROCK3S-HUB-BRG | hub bearing kit | GBP 26.79 | View kit |
| ARRMA Big Rock 3S Diff Bearing Kit | 888RC-ARA-BIGROCK3S-DIFF-BRG | diff bearing kit | GBP 8.92 | View kit |
| ARRMA Big Rock 3S Transmission Bearing Kit | 888RC-ARA-BIGROCK3S-TRANS-BRG | transmission bearing kit | GBP 31.34 | View kit |
| ARRMA Big Rock 3S Small Shaft Bearing Kit | 888RC-ARA-BIGROCK3S-SMALL-BRG | small shaft bearing kit | GBP 4.99 | View kit |
Individual Replacement Bearings
| Size | Product | SKU | Used for | Product link |
|---|---|---|---|---|
| 5x8x2.5 | 5x8x2.5 MR85ZZ / MR852RS RC Bearing for ARRMA Big Rock 3S | 888-RC | 888RC-BRG-5X8X2P5-ARA-BIGROCK3S | small shaft and steering support positions | View bearing |
| 5x10x4 | 5x10x4 MR105ZZ / MR1052RS RC Bearing for ARRMA Big Rock 3S | 888-RC | 888RC-BRG-5X10X4-ARA-BIGROCK3S | transmission and gearbox shaft positions | View bearing |
| 6x12x4 | 6x12x4 MR126ZZ / MR1262RS RC Bearing for ARRMA Big Rock 3S | 888-RC | 888RC-BRG-6X12X4-ARA-BIGROCK3S | differential input and pinion shaft positions | View bearing |
| 10x15x4 | 10x15x4 RC Bearing for ARRMA Big Rock 3S | 888-RC | 888RC-BRG-10X15X4-ARA-BIGROCK3S | driveline and gear support positions | View bearing |
| 10x15x4 flanged | 10x15x4 flanged RC Bearing for ARRMA Big Rock 3S | 888-RC | 888RC-BRG-10X15X4XFLANGED-ARA-BIGROCK3S | flanged driveline support position | View bearing |
| 12x18x4 | 12x18x4 RC Bearing for ARRMA Big Rock 3S (ARA610044) | 888-RC | 888RC-BRG-12X18X4-ARA-BIGROCK3S | front and rear hubs | View bearing |
| 15x21x4 | 15x21x4 RC Bearing for ARRMA Big Rock 3S | 888-RC | 888RC-BRG-15X21X4-ARA-BIGROCK3S | larger driveline support positions | View bearing |
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OEM Reference Guides
FAQ
What bearings does the ARRMA Big Rock 3S use?
The listed ARRMA Big Rock 3S bearings are 5x8x2.5, 5x10x4, 6x12x4, 10x15x4, 10x15x4 flanged, 12x18x4, 15x21x4.
How many bearings are in the ARRMA Big Rock 3S?
The complete bearing kit includes 26 bearings for this vehicle.
What bearing sizes are used in the ARRMA Big Rock 3S?
The bearing sizes listed are 5x8x2.5, 5x10x4, 6x12x4, 10x15x4, 10x15x4 flanged, 12x18x4, 15x21x4.
Are the bearings rubber sealed?
Yes. Every bearing in the ARRMA Big Rock 3S full kit is listed as rubber sealed.
Can I buy individual replacement bearings?
Yes. Individual replacement bearings are listed for the ARRMA Big Rock 3S by size and SKU.