| Symbol | Value | Description |
|---|---|---|
| ≈m | 0.725 kg | Weight |
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NTN 21308CD1 Spherical Roller Bearing 40 × 90 × 23 mm
Spherical Roller Bearing
RFQ
Estimated delivery: 18 Jul 2026 (domestic stock)
In stockEstimated delivery: 18 Jul 2026 (domestic stock)
EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
- Category
- Spherical Roller Bearing
- Bore
- 40 mm
- Outer Ø
- 90 mm
- Width
- 23 mm
Overview
NTN 21308CD1 Spherical Roller Bearing is a heavy-duty bearing that tolerates shaft misalignment and deflection through spherical raceways and barrel-shaped rollers. It supports high radial load and axial load in both directions, making it suitable for mining, steel, paper, wind, and other shock-prone equipment.
The outer ring has a spherical raceway, while the inner ring carries two rows of rollers guided by a cage. This self-aligning structure compensates for minor shaft and housing misalignment during operation.
Key features
- Self-aligning capability for misalignment and shaft deflection
- High radial and bidirectional axial load capacity
- Stable operation under shock and vibration
- Long-life design for heavy-duty equipment
Typical applications
- Conveyor pulleys
- Crushers, screens, and mining equipment
- Steel and paper machinery
- Wind turbines and heavy machinery
Selection guidance
Review load, speed, misalignment, lubrication method, bore type, and adapter sleeve requirements before selection.
| Symbol | Value | Description |
|---|---|---|
| d | 40 mm | Bore diameter |
| D | 90 mm | Outside diameter |
| B | 23 mm | Width |
| Code | Description |
|---|---|
| Standard bearing steel | Material |
| Sheet steel cage | Cage |
| Tolerance class P0/PN2 / ABEC 1 | Tolerance class |
Excerpt from the manufacturer's official catalog — NTN CAT.2203E — Ball and Roller Bearings
Also searched as
The same part number can be written with or without separators, or in progressive prefix form. We index these common variants so your search reaches this page:
NTN21308CD1NTN 21308CD1
