# 629 bearing dimensions

A 629 bearing is 9 mm bore × 26 mm outside diameter × 8 mm wide (0.354 × 1.024 × 0.315 in). The sealed version is 629-2RS; the shielded version is 629-ZZ.

## 629 data

- Type: deep groove ball bearing, 62 series (light)
- Bore d: 9 mm (0.3543 in)
- Outside diameter D: 26 mm (1.0236 in)
- Width B: 8 mm (0.3150 in)
- Bore code: Under 10 mm bore the last digit is the bore itself: 9 = 9 mm
- Sealed: 629-2RS; shielded: 629-ZZ; open: 629

## Designations by maker

| Maker | Sealed | Shielded |
|---|---|---|
| SKF | 629-2RSH | 629-2Z |
| FAG (Schaeffler) | 629-2RSR | 629-2ZR |
| NSK | 629DDU | 629ZZ |
| NTN | 629LLU | 629ZZ |
| Koyo (JTEKT) | 629-2RS | 629ZZ |
| Timken | 629-2RS | see catalogue |

## Same 9 mm bore, other series

| Bearing | Series | OD mm | Width mm |
|---|---|---|---|
| 609 | extra-light | 24 | 7 |
| 629 | light | 26 | 8 |


Load ratings and speed limits vary by maker: take them from the manufacturer's catalogue.

## FAQ

**What size is a 629 bearing?**
9 mm bore, 26 mm outside diameter and 8 mm wide, which is 0.354 × 1.024 × 0.315 in.

**What does 2RS mean on a 629 bearing?**
629-2RS has rubber contact seals on both sides. 629-ZZ (also written 629-2Z) has metal shields on both sides. Both have the same 9 × 26 × 8 mm dimensions.

**Is 629-2RS the same as 629-ZZ?**
They are the same size and interchangeable in a housing. The sealed 629-2RS keeps out fine dirt and water better; the shielded 629-ZZ runs with less friction.

**What is the SKF equivalent of 629-2RS?**
SKF writes it 629-2RSH; FAG 629-2RSR, NSK 629DDU, NTN 629LLU and Koyo 629-2RS. Check the maker's catalogue for the exact seal type.

**What does the number 629 mean?**
6 is the deep groove ball bearing type, 2 is the light dimension series, and under 10 mm bore the last digit is the bore itself: 9 = 9 mm.

**Which bearings have the same bore as 629?**
609 also have a 9 mm bore, with different outside diameters and widths.

Source page: https://machinistcharts.com/bearing/629/
Updated: 2026-10-06
Publisher: MachinistCharts (https://machinistcharts.com)