# THK RU85 Cross-Roller Ring (55 x 120 x 15 mm)

![THK RU85 Cross-Roller Ring (55 x 120 x 15 mm)](https://parts.trymaglev.com/img/ac-thk-ru85.webp)

THK's RU85 one-piece cross-roller ring with mounting holes, the reference part Chinese RU-type bearings copy.

- Maglev ID: ac-thk-ru85
- Brand: THK
- MPN: RU85UUC0
- Category: actuators / Crossed Roller Bearings
- Origin: JP (maker HQ, factory not confirmed)
- Maker: THK Co., Ltd. (brand, JP)
- NDAA: unknown · Blue UAS: unknown · FCC: n/a
- HTS: 8482.50.0000
- MOQ: 1 · Lead time: unknown
- Confidence: VERIFIED

## Price
- 1+: $783.03 (distributor, 2026-10-30, https://www.acorn-ind.co.uk/p/thk/cross-roller-bearing/ru85uuc0-thk/)
- 1+: $732.45 (distributor, 2026-10-30, https://acorn-ind.co.uk/p/ru85c0-thk; RU85C0, open (no seal) variant)

## Specifications
- Bore: 55 mm
- Outside diameter: 120 mm
- Width: 15 mm
- Basic dynamic load rating C: 20.3 kN
- Type: Crossed roller, integral inner and outer rings with mounting holes (RU type)
- Basic static load rating C0: 29.5 kN

## Links
- Product: https://www.acorn-ind.co.uk/p/thk/cross-roller-bearing/ru85uuc0-thk/
- Datasheet: https://tech.thk.com/en/products/pdf/en_a18_022.pdf
- CAD: none

## Equivalents
- ZYS RU85 Crossed Roller Bearing (55 x 120 x 15 mm, mounting holes) (ac-zys-ru85)
- HIWIN CRBE 05515 Crossed Roller Bearing (55 x 120 x 15 mm) (ac-hiwin-crbe05515)

## Sources
- https://tech.thk.com/en/products/pdf/en_a18_022.pdf (THK catalog A18-22 RU table (d, D, B, C, C0, mass))
- https://www.acorn-ind.co.uk/p/thk/cross-roller-bearing/ru85uuc0-thk/ (price, country of origin, image)