ZKL 32212AR 60x110x29.75 mm - Tapered Roller Bearing

ZKL 32212AR 60x110x29.75 mm - Tapered Roller Bearing

ZKL 32212AR 60x110x29.75 mm is a single-row tapered roller bearing designed to accommodate radial loads together with axial loads acting in one direction. The bearing has a 60 mm bore diameter, 110 mm outside diameter and 29.75 mm overall width. The designation 32212 identifies the tapered roller bearing size series, while AR is part of the complete ZKL designation and should be considered when identifying a replacement.

Technical data

Dynamic load rating C, static load rating C0, fatigue load limit Pu, reference speed, limiting speed, mass and internal clearance are not stated because these values have not been confirmed for the exact ZKL 32212AR variant.

What does ZKL 32212AR mean?

ZKL - bearing manufacturer.

32212 - basic designation identifying the dimensional series and size of the single-row tapered roller bearing.

60 mm - nominal bearing bore diameter.

110 mm - nominal outside diameter.

29.75 mm - nominal overall bearing width.

AR - suffix forming part of the complete ZKL product designation. Its exact meaning should not be inferred from the nomenclature of another bearing manufacturer. When selecting a replacement, the complete 32212AR designation and the requirements of the specific bearing arrangement should be verified.

ZKL 32212AR dimensions

The principal dimensions are:

60x110x29.75 mm

where:

• d = 60 mm - bore diameter

• D = 110 mm - outside diameter

• T = 29.75 mm - overall bearing width

With tapered roller bearings, it is important to distinguish between the widths of the individual inner and outer rings and the total width of the complete bearing assembly.

For correct identification of the 32212AR, use the complete bearing designation together with the full dimensional specification.

Tapered roller bearing construction

ZKL 32212AR is a single-row bearing using tapered rollers as rolling elements.

Its basic construction consists of:

• inner ring

• outer ring

• tapered rollers

• cage maintaining the rolling elements in their correct positions

The raceways and tapered rollers have geometry specifically designed for tapered roller bearing operation.

This construction enables the bearing to accommodate radial and axial loads simultaneously.

How does a tapered roller bearing work?

In a tapered roller bearing, loads are transmitted through line contact between the tapered rollers and raceways.

Unlike a conventional deep groove ball bearing, tapered roller geometry is specifically suited to combined loading.

A single-row tapered roller bearing can accommodate:

• radial loads

• axial loads acting in one direction

• combined radial and axial loads

Its axial load carrying capability results directly from the geometry of the raceways and tapered rollers.

Axial loads and bearing arrangements

A single-row tapered roller bearing accommodates axial load in one direction.

When axial loads must be supported in both directions, tapered roller bearings are commonly used in appropriately designed paired arrangements.

The bearing arrangement influences factors such as:

• axial load accommodation

• system rigidity

• shaft guidance

• bearing clearance or preload adjustment

The appropriate arrangement and adjustment must be determined according to the design requirements of the specific bearing system.

ZKL 32212AR vs standard 32212

The basic designation 32212 identifies a family of single-row tapered roller bearings with defined nominal dimensions.

The 32212AR version, however, includes the additional AR suffix.

It should therefore not automatically be assumed that:

32212 = 32212AR

in every application.

If the original bearing is specifically marked ZKL 32212AR, replacement selection should consider not only the 60x110x29.75 mm dimensions but also the complete manufacturer designation and the requirements of the bearing arrangement.

ZKL 32212AR vs ball bearing

Tapered roller bearings and deep groove ball bearings use different rolling-element geometry and have different load-carrying characteristics.

The rolling elements in ZKL 32212AR are tapered rollers.

Their line contact with the raceways enables the bearing to accommodate combined radial and axial loading.

A replacement should therefore never be selected solely on the basis of bore or outside diameter.

Separable tapered roller bearing design

A characteristic feature of conventional single-row tapered roller bearings is their separable construction.

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

This is relevant during:

• installation

• removal

• positioning of mating components

• adjustment of the bearing arrangement

The inner and outer bearing components must form a correctly matched assembly.

Components from different bearing variants should not be mixed unless their compatibility has been specifically confirmed.

Alternative designations and search references

Natural reference formats for this bearing include:

• ZKL 32212AR

• 32212AR ZKL

• ZKL 32212 AR

• 32212 AR ZKL

• ZKL 32212AR bearing

• 32212AR tapered roller bearing

• 32212 tapered roller bearing

• tapered roller bearing 60x110x29.75

• 32212 60x110x29.75

• 32212 bearing 60x110x29.75

• ZKL tapered roller bearing 32212AR

OEM and cross-reference numbers are not provided because none have been confirmed for the exact ZKL 32212AR variant.

How to select a replacement for ZKL 32212AR

Before selecting an alternative bearing, verify:

• complete 32212AR designation

• ZKL manufacturer designation

• tapered roller bearing type

• single-row construction

• 60 mm bore diameter

• 110 mm outside diameter

• 29.75 mm overall width

• meaning and requirement of the AR suffix

• required bearing clearance or adjustment

• bearing arrangement

• axial load direction

• lubrication conditions

• rotational speed

• operating temperature

Matching the 60x110x29.75 mm dimensions alone does not guarantee complete interchangeability.

Bearings from different manufacturers may share the same principal dimensions while differing in additional designations, tolerances, internal execution or technical parameters.

Applications

Tapered roller bearings of the 322 series are designed for bearing arrangements subjected to combined radial and axial loads.

The exact application of ZKL 32212AR should, however, be determined from the documentation of the machine or equipment.

The bearing should not be assigned to a specific:

• vehicle

• machine model

• gearbox

• axle

• wheel hub

• reducer

• industrial equipment

without confirmed OEM or equipment manufacturer documentation.

Installation of ZKL 32212AR

Before installation, inspect the condition of:

• shaft

• housing

• locating surfaces

• mating components

• bearing itself

Mounting surfaces should be clean and free from damage.

Installation forces should not be transmitted through the tapered rollers in a way that could damage the rolling elements or raceways.

In adjustable bearing arrangements, correct clearance or preload adjustment is particularly important.

Incorrect adjustment can influence operating temperature, bearing arrangement rigidity and service life.

FAQ

What are the dimensions of ZKL 32212AR?

The nominal dimensions are 60x110x29.75 mm: 60 mm bore diameter, 110 mm outside diameter and 29.75 mm overall width.

Is ZKL 32212AR a tapered roller bearing?

Yes. ZKL 32212AR is a single-row tapered roller bearing with tapered rolling elements.

What loads can a 32212AR bearing accommodate?

Its tapered roller construction enables it to accommodate radial loads together with axial loads acting in one direction.

Can ZKL 32212AR accommodate axial loads in both directions?

A single-row tapered roller bearing accommodates axial load in one direction. Axial guidance in both directions normally requires an appropriately designed bearing arrangement.

Are 32212 and 32212AR exactly the same?

This should not be assumed automatically. AR is an additional ZKL designation. When selecting a replacement, the complete 32212AR designation should be considered.

Can ZKL 32212AR be replaced by another brand?

A potential replacement requires verification of the complete designation, dimensions, tapered roller design, AR suffix and technical requirements of the specific bearing arrangement. Matching dimensions alone do not prove complete interchangeability.

Is ZKL 32212AR a separable bearing?

Single-row tapered roller bearings have a separable construction. The inner ring assembly with rollers and cage can be separated from the outer ring.

Is the width of a 32212 bearing 11 mm?

No. The nominal overall width of the 32212 bearing size is 29.75 mm, not 11 mm.

ZKL 32212AR 60x110x29.75 mm - key information

ZKL 32212AR is a single-row tapered roller bearing with nominal dimensions of 60x110x29.75 mm. It uses tapered rollers and is designed to accommodate radial loads together with axial loads acting in one direction. When selecting a replacement, the complete 32212AR designation should be considered rather than relying solely on the principal bearing dimensions.

ZKL tapered roller bearings are available from the specialist industrial supplier simmering.pl, with stock in Poland and worldwide shipping. Assistance with bearing identification and technical selection is also available.