Read this exact catalogue record
NTN KH3050 is recorded in the manufacturer catalogue as ball sleeves.
Reference:NTN Europe public product catalogue; source checked 2026-10-01.
How to use the parameters
- Check the component or assembly description and the dimension symbols in the table. A unit, separate ring or one-way mechanism must not be treated as a standard interchangeable d×D×B bearing.
- Use the complete NTN marking when comparing this record. The base number alone does not establish the same closure, clearance, cage, load rating or speed across brands.
- Dynamic and static load ratings are catalogue reference values, not a permitted working load for every installation. Grease and oil speed entries describe separate lubrication conditions; do not treat the higher value as a general operating limit.
- Mounting dimensions such as shoulder diameters and maximum fillet radii are not the bearing boundary dimensions. Unknown precision, material, lubricant grade and application fitment are not inferred from similar products.
This is an independent technical reference, not an official drawing, a complete current catalogue or an approval for a vehicle or machine.
Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Ball sleeves | |
| Bore diameter | d | 30 mm |
| Outside diameter | D | 40 mm |
| Mass | ≈m | 0.095 kg |
| Minimum operating temperature | Tmin | -20 °C |
| Maximum operating temperature | Tmax | 80 °C |
Dimensions and properties12 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Design type | KH | |
| Ball bushings category | Ball sleeves | |
| Standard | ISO dimension | |
| Material outer cylinder or steel segments | hardened steel sleeve | |
| Material Cage | PA | |
| Initial greasing | Non/No | |
| Re-lubricable | Oui/Yes | |
| Internal diameter | d | 30 mm |
| External diameter | D | 40 mm |
| Length | L | 50 mm |
| Number of ball rows | 7 | |
| Mass | 0.095 kg |
Performance6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Cmin | 2.7 kN | |
| Cmax | 2.7 kN | |
| C0min | 2.45 kN | |
| C0max | 2.45 kN | |
| Min operating temperature | Tmin | -20 °C |
| Max operating temperature | Tmax | 80 °C |