Read this exact catalogue record
NTN 29318 is recorded in the manufacturer catalogue as thrust spherical roller bearings.
Reference:NTN Europe public product catalogue; source checked 2026-10-01.
How to use the parameters
- 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 specifications4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Thrust spherical roller bearings | |
| Mass | ≈m | 3.08 kg |
| Minimum operating temperature | Tmin | -40 °C |
| Maximum operating temperature | Tmax | 200 °C |
Mounting dimensions4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Max shaft & housing fillet radius | ras max | 1.5 mm |
| Min fillet radius | rs | 1.5 mm |
| Max shoulder diameter OR | Da max | 140 mm |
| Min shoulder diameter IR | da min | 120 mm |
Dimensions and properties7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Internal diameter of shaft washer | d | 90 mm |
| Housing washer outer diameter | D | 155 mm |
| Inner diameter housing washer | D1 | 117 mm |
| External diameter shaft washer | d1 | 148.5 mm |
| Thrust bearing height | T | 39 mm |
| Housing washer width | C | 19 mm |
| Mass | 3.08 kg |
Performance6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Dynamic axial load rating | Ca | 320 kN |
| Static axial load rating | C0a | 915 kN |
| Limit axial load rating | Cua | 84 kN |
| Oil lubrication limit speed | N lim | 2300 r/min |
| Min operating temperature | Tmin | -40 °C |
| Max operating temperature | Tmax | 200 °C |