Kyosho Optima Mid '87 WC Worlds Spec (30643) Bearing Size List & Bearing Locations

Kyosho Optima Mid '87 WC Worlds Spec (30643) Bearing Size List & Bearing Locations

Use this Kyosho Optima Mid '87 WC Worlds Spec (30643) bearing size list to identify replacement RC bearings, OEM part references and bearing locations for the listed model. The complete kit includes 29 bearings. Key bearing sizes include 3x6x2.5, 4x7x2.5, 4x8x3, 5x8x2.5, 5x10x4 and 6x12x4. Common bearing applications include flanged small shaft, wheel or steering support positions listed in the source kit, small shaft and steering support positions listed in the source kit, small driveline or transmission support positions listed in the source kit, small wheel, differential or driveline support positions listed in the source kit, drivetrain, differential, wheel or transmission support positions listed in the source kit and drivetrain, differential or hub support positions listed in the source kit.

Vehicle Summary

  • Brand: Kyosho
  • Vehicle: Optima Mid '87 WC Worlds Spec (30643)
  • Total bearing count: 29
  • OEM part numbers listed: BRG402F, BRG404, BRG013, BRG405, BRG003SUS, BRG406, BRG002SUS, BRG407, BRG001TSB, BRG001SUS, BRG411, BRG006TS, BRG414, BRG014TSB, BRG014

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
3x6x2.5 2 2 bearings are listed for flanged small shaft, wheel or steering support positions listed in the source kit, used for flanged small shaft, wheel or steering support positions listed in the source kit. BRG402F Rubber sealed
4x7x2.5 2 2 bearings are listed for small shaft and steering support positions listed in the source kit, used for small shaft and steering support positions listed in the source kit. BRG404, BRG013 Rubber sealed
4x8x3 1 1 bearing is 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
5x8x2.5 8 8 bearings are listed for small wheel, differential or driveline support positions listed in the source kit, used for small wheel, differential or driveline support positions listed in the source kit. BRG406, BRG002SUS Rubber sealed
5x10x4 9 9 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
6x12x4 1 1 bearing is listed for drivetrain, differential or hub support positions listed in the source kit, used for drivetrain, differential or hub support positions listed in the source kit. BRG411, BRG006TS Rubber sealed
10x15x4 6 6 bearings are listed for hub, axle and driveline support positions listed in the source kit, used for hub, axle and driveline support positions listed in the source kit. BRG414, BRG014TSB, BRG014 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 Optima Mid '87 WC Worlds Spec (30643) Complete Bearing Kit 888RC-KYO-OPTIMAMID87WCWORLDSSPEC30643-FULL-BRG complete bearing kit GBP 27.99 View kit
Kyosho Optima Mid '87 WC Worlds Spec (30643) Hub & Axle Bearing Kit 888RC-KYO-OPTIMAMID87WCWORLDSSPEC30643-HUB-BRG hub bearing kit GBP 23.45 View kit
Kyosho Optima Mid '87 WC Worlds Spec (30643) Drivetrain Bearing Kit 888RC-KYO-OPTIMAMID87WCWORLDSSPEC30643-DRIVE-BRG drivetrain bearing kit GBP 31.01 View kit
Kyosho Optima Mid '87 WC Worlds Spec (30643) Small Shaft Bearing Kit 888RC-KYO-OPTIMAMID87WCWORLDSSPEC30643-SMALL-BRG small shaft bearing kit GBP 33.47 View kit

Individual Replacement Bearings

Size Product SKU Used for Product link
3x6x2.5 3x6x2.5 MR63ZZ / MR632RS RC Bearing for Kyosho Optima Mid '87 WC Worlds Spec (30643) (BRG402F) | 888-RC 888RC-BRG-3X6X25-FLANGED-KYO-OPTIMAMID87WCWORLDSSPEC30643 flanged small shaft, wheel or steering support positions listed in the source kit View bearing
4x7x2.5 4x7x2.5 MR74ZZ / MR742RS RC Bearing for Kyosho Optima Mid '87 WC Worlds Spec (30643) (BRG404, BRG013) | 888-RC 888RC-BRG-4X7X25-KYO-OPTIMAMID87WCWORLDSSPEC30643 small shaft and steering support positions listed in the source kit View bearing
4x8x3 4x8x3 MR84ZZ / MR842RS RC Bearing for Kyosho Optima Mid '87 WC Worlds Spec (30643) (BRG405, BRG003SUS) | 888-RC 888RC-BRG-4X8X3-KYO-OPTIMAMID87WCWORLDSSPEC30643 small driveline or transmission support positions listed in the source kit View bearing
5x8x2.5 5x8x2.5 MR85ZZ / MR852RS RC Bearing for Kyosho Optima Mid '87 WC Worlds Spec (30643) (BRG406, BRG002SUS) | 888-RC 888RC-BRG-5X8X25-KYO-OPTIMAMID87WCWORLDSSPEC30643 small wheel, differential or driveline support positions listed in the source kit View bearing
5x10x4 5x10x4 MR105ZZ / MR1052RS RC Bearing for Kyosho Optima Mid '87 WC Worlds Spec (30643) (BRG407, BRG001TSB, BRG001SUS) | 888-RC 888RC-BRG-5X10X4-KYO-OPTIMAMID87WCWORLDSSPEC30643 drivetrain, differential, wheel or transmission support positions listed in the source kit View bearing
6x12x4 6x12x4 MR126ZZ / MR1262RS RC Bearing for Kyosho Optima Mid '87 WC Worlds Spec (30643) (BRG411, BRG006TS) | 888-RC 888RC-BRG-6X12X4-KYO-OPTIMAMID87WCWORLDSSPEC30643 drivetrain, differential or hub support positions listed in the source kit View bearing
10x15x4 10x15x4 RC Bearing for Kyosho Optima Mid '87 WC Worlds Spec (30643) (BRG414, BRG014TSB, BRG014) | 888-RC 888RC-BRG-10X15X4-KYO-OPTIMAMID87WCWORLDSSPEC30643 hub, axle and driveline support positions listed in the source kit View bearing

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OEM Reference Guides

FAQ

What bearings does the Kyosho Optima Mid '87 WC Worlds Spec (30643) use?

The listed Kyosho Optima Mid '87 WC Worlds Spec (30643) bearings are 3x6x2.5, 4x7x2.5, 4x8x3, 5x8x2.5, 5x10x4, 6x12x4, 10x15x4.

How many bearings are in the Kyosho Optima Mid '87 WC Worlds Spec (30643)?

The complete bearing kit includes 29 bearings for this vehicle.

What bearing sizes are used in the Kyosho Optima Mid '87 WC Worlds Spec (30643)?

The bearing sizes listed are 3x6x2.5, 4x7x2.5, 4x8x3, 5x8x2.5, 5x10x4, 6x12x4, 10x15x4.

Are the bearings rubber sealed?

Yes. Every bearing in the Kyosho Optima Mid '87 WC Worlds Spec (30643) full kit is listed as rubber sealed.

Can I buy individual replacement bearings?

Yes. Individual replacement bearings are listed for the Kyosho Optima Mid '87 WC Worlds Spec (30643) by size and SKU.