ZIBOO
ZIBOO NTN 21312 Spherical Roller Bearing 60x130x31mm electrician tool
Spherical roller bearing sized 60 by 130 by 31 millimetres for heavy radial loads
- Spherical roller design handles heavy radial and axial loads
- 60 mm bore, 130 mm outer diameter, 31 mm width fits standard housings
- NTN 21312 model ensures consistent manufacturing quality
- New condition guarantees full service life from installation
NTN 21312 Spherical Roller Bearing
The NTN 21312 is a spherical roller bearing built for electrician tools that must handle combined radial and axial loads. Its roller geometry tolerates shaft misalignment that occurs in motor housings or gear assemblies. Maintenance teams select it when a single-row bearing cannot carry the load or when alignment cannot be guaranteed.
60x130x31mm steel construction
The bearing measures 60 mm bore, 130 mm outside diameter and 31 mm width, all in hardened steel races and rollers. No seals or shields are fitted, so lubrication must be supplied externally and contamination controlled by the surrounding housing. The open design allows relubrication during scheduled downtime without disassembly of the bearing itself.
Highlights
- Spherical roller design handles heavy radial and axial loads
- 60 mm bore, 130 mm outer diameter, 31 mm width fits standard housings
- NTN 21312 model ensures consistent manufacturing quality
- New condition guarantees full service life from installation
Specifications
| Brand | ZIBOO |
|---|---|
| Model | NTN 21312 |
Questions about this item
What bearing standard does the NTN 21312 follow and what does that mean for load capacity?
The NTN 21312 is a spherical roller bearing built to standard dimensions of 60 mm bore, 130 mm outer diameter and 31 mm width, giving it high radial and combined load capacity in a single row design.
What shaft and housing dimensions are needed to mount the NTN 21312 correctly?
The bearing requires a 60 mm shaft seat and a 130 mm housing bore with a 31 mm axial space; both fits should follow standard tolerance classes for spherical roller bearings.
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