# Traxxas 5102A ball bearing, 15 × 21 × 4 mm

> What size is Traxxas bearing 5102A?

- Category: RC cars › Bearings & hardware
- Kind: Modern device
- Basis: Maker's parts list (Traxxas)
- Page: https://xemstudio.com/objects/traxxas-5102a-ball-bearings-black-rubber-sealed-15x21x4mm/ · JSON: https://xemstudio.com/api/geometry?object=traxxas-5102a-ball-bearings-black-rubber-sealed-15x21x4mm · Plain text: https://xemstudio.com/objects/traxxas-5102a-ball-bearings-black-rubber-sealed-15x21x4mm/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

## Overall (mm)

| length | width | height |
|---|---|---|
| 21.01 | 21.01 | 4.01 |

**Exact dimensions.** True size, with no printing tolerance added.

## Notes

- Traxxas part 5102A: Ball bearings, black rubber sealed (15x21x4mm) (2). Size exactly as printed in Traxxas's parts list; the file is built from that size only.
- Bearing envelope 15 × 21 × 4 mm (bore × OD × width).
- True size, no printing tolerance added.

## Sizes

| dimension | value |
|---|---|
| part number | Traxxas 5102A |
| name (as printed) | Ball bearings, black rubber sealed (15x21x4mm) (2) |
| size (as printed) | 15x21x4mm |
| bore | 15 mm |
| outside diameter | 21 mm |
| width | 4 mm |
| seals / balls | as printed in the name; not modelled |
| used in | Traxxas TRX-4 2021 Ford Bronco (1/10 crawler, 92076-4) |

## Where the files are

- Traxxas (sheet hosted by Monsterhopups): [TRX-4 Unassembled Kit (Model 82016-4) parts list, REV. 230615 0246, p. 1](https://www.monsterhopups.de/media/image/storage/opc/anleitung_traxxas/82016-4_parts.pdf) — web — Publisher's page; dimensions are facts

## Free STEP/STL (1 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/traxxas-5102a-ball-bearings-black-rubber-sealed-15x21x4mm/index.json

- traxxas-5102a-ball-bearings-black-rubber-sealed-15x21x4mm-envelope: [STEP](https://xemstudio.com/files/hardware/traxxas-5102a-ball-bearings-black-rubber-sealed-15x21x4mm/traxxas-5102a-ball-bearings-black-rubber-sealed-15x21x4mm-envelope.step) · [STL](https://xemstudio.com/files/hardware/traxxas-5102a-ball-bearings-black-rubber-sealed-15x21x4mm/traxxas-5102a-ball-bearings-black-rubber-sealed-15x21x4mm-envelope.stl) — Bearing envelope 15 × 21 × 4 mm (bore × OD × width)

## Questions

**What size is Traxxas bearing 5102A?**

15 × 21 × 4 mm

## Fits with

- [Traxxas TRX-4 kit (82016-4) parts list](https://xemstudio.com/objects/traxxas-trx-4-2021-ford-bronco-parts-list/)
- [Traxxas TRX-4 2021 Ford Bronco (1/10 crawler, 92076-4)](https://xemstudio.com/objects/traxxas-trx-4-2021-ford-bronco/)
- [Ball bearings, 683 to 6210 and flanged F6xx (ISO 15)](https://xemstudio.com/objects/ball-bearings-metric/)