BRAND: NTN 

ID: 51306

Description:

NTN 51306 – Single Direction Thrust Ball Bearing

General Information

Brand: NTN
Item Number: 51306
EAN: 4547359307047
Category: Single direction thrust ball bearing
Country of Origin: Japan
Dimensions & Weight

Bore Diameter (d): 30 mm / 1.1811 in
Outer Diameter (D): 60 mm / 2.3622 in
Total Height (B): 21 mm / 0.8268 in
Weight: 0.27 kg
Bearing Properties

Type: Thrust ball bearing, single direction (axial deep groove ball bearing)
Cage Type: S – Steel / standard cage
Design: Open bearing
Precision: Standard precision
Product Description

The NTN 51306 is a single direction thrust ball bearing, also known as an axial deep groove ball bearing. It is designed to support axial loads in one direction only and must not be subjected to radial loads.

The bearing consists of:

A shaft (inner) ring
A housing (outer) ring
A ball and cage assembly
Key characteristics:

The shaft ring is mounted on the shaft and rotates with it.
The housing ring has a slightly larger bore, allowing the shaft to pass through with clearance.
The open design with balls makes it suitable for high rotational speeds under axial load.
The components are separable, so the rings and ball/cage assembly can be mounted separately for easier installation.
The housing ring of the 51306 NTN has a flat seat, which means:

It cannot compensate for misalignment between shaft and housing.
Proper alignment of the bearing arrangement is important for long service life.
Typical Applications

Vertical shafts and axial load applications
Gearboxes and speed reducers (axial support)
Machine tool spindles (axial locating bearing)
General industrial machinery with pure axial loads in one direction

   Package Includes: ONE (1) NTN Bearing 51306