30307 CT 35x80x22.75 mm

30307 CT 35x80x22.75 mm

30307 CT is a single-row tapered roller bearing with dimensions 35x80x22.75 mm. Its tapered roller design enables the bearing to accommodate combined radial and axial loads. The 30307 bearing has a separable design, allowing the inner ring assembly with rollers and cage to be mounted separately from the outer ring.

Technical data - 30307 CT

30307 bearing dimensions

The basic dimensions are:

d = 35 mm - bore diameter

D = 80 mm - outside diameter

T = 22.75 mm - total bearing width

Complete dimensions: 35x80x22.75 mm.

When selecting an equivalent bearing, the complete product designation and all relevant construction dimensions should be verified rather than relying only on the bore and outside diameters.

What does 30307 mean?

The designation 30307 identifies a tapered roller bearing belonging to the 303 series.

Bearings of this design use tapered raceways in the inner and outer rings together with tapered rolling elements.

This geometry enables the bearing to accommodate:

• radial loads

• axial loads acting in one direction

• combined radial and axial loads

Where axial loads must be accommodated in both directions, tapered roller bearings are commonly used in appropriately arranged pairs.

30307 CT tapered roller bearing design

The basic construction includes:

• inner ring

• outer ring

• tapered rollers

• cage

A characteristic feature of a single-row tapered roller bearing is its separable construction.

The outer ring can be separated from the inner ring assembly containing the rollers and cage. This facilitates installation and adjustment of the bearing arrangement.

How does a tapered roller bearing work?

In a tapered roller bearing, the raceways and rolling elements have a tapered geometry designed to accommodate combined loads.

During operation, loads are transmitted through the tapered rollers between the inner and outer raceways.

Unlike a conventional deep groove ball bearing, a tapered roller bearing is particularly suitable for bearing arrangements where radial and axial loads occur simultaneously.

Radial and axial loads

The 30307 CT can accommodate radial loads together with axial loads acting in one direction.

The ability to support combined loads is one of the fundamental characteristics of tapered roller bearings.

The mounting direction is important because a single-row tapered roller bearing accommodates axial load primarily in one direction.

Internal clearance and bearing adjustment

Correct adjustment of a tapered roller bearing arrangement is important for bearing performance and service life.

The final operating clearance can be affected by:

• mounting arrangement

• ring fits

• interaction with the opposing bearing

• operating temperature

• shaft and housing design

• applied loads

Internal clearance or preload should therefore be established according to the requirements of the specific bearing arrangement.

Selecting a 30307 CT bearing

Before selecting the bearing or an equivalent, verify:

• complete designation 30307 CT

• bore diameter 35 mm

• outside diameter 80 mm

• total width 22.75 mm

• axial load direction

• radial load requirements

• bearing adjustment

• shaft fit

• housing fit

• rotational speed

• operating temperature

• lubrication method

Matching the 35x80x22.75 mm dimensions alone does not guarantee full interchangeability between all 30307 bearing variants.

Installation of a tapered roller bearing

During installation, the mating surfaces should be clean and the bearing rings correctly seated.

Mounting forces should not be transmitted through the rolling elements.

After installation, the bearing arrangement should be checked for the required operating clearance or preload according to the technical requirements of the application.

FAQ - 30307 CT 35x80x22.75

What are the dimensions of the 30307 CT bearing?

The bearing has a 35 mm bore diameter, 80 mm outside diameter and 22.75 mm total width. Its complete dimensions are 35x80x22.75 mm.

What type of bearing is 30307 CT?

30307 CT is a single-row tapered roller bearing.

What rolling elements are used in a 30307 bearing?

The bearing uses tapered rollers.

Can a 30307 bearing accommodate axial loads?

Yes. A single-row tapered roller bearing can accommodate axial load acting in one direction in addition to radial load.

Is the 30307 bearing separable?

Yes. The outer ring can be separated from the inner ring assembly with rollers and cage.

Can a 30307 bearing accommodate radial and axial loads simultaneously?

Yes. Tapered roller bearings are designed to accommodate combined radial and axial loads.

Can two 30307 bearings be used together?

Tapered roller bearings can be used in appropriately designed paired arrangements, including applications where axial loads must be accommodated in both directions.

Are all 30307 35x80x22.75 bearings identical?

Full interchangeability should not be assumed from dimensions alone. The complete designation, bearing design and requirements of the specific bearing arrangement should also be verified.

30307 CT 35x80x22.75 - key information

30307 CT 35x80x22.75 mm is a single-row tapered roller bearing with a 35 mm bore, 80 mm outside diameter and 22.75 mm total width. Its tapered roller design enables it to accommodate radial and axial loads acting in one direction. The separable construction facilitates installation and adjustment of the bearing arrangement.

Available from simmering.pl, a specialist supplier of bearings, rotary shaft seals and industrial sealing solutions. Stock in Poland with worldwide shipping.