TECMA DRIVE I.340.16.00.D1 TGB 340x216x39 mm – Internal Gear Slewing Ring Bearing

TECMA DRIVE I.340.16.00.D1 TGB 340x216x39 mm – Internal Gear Slewing Ring Bearing

TECMA DRIVE I.340.16.00.D1 TGB is a slewing ring bearing with internal gearing, featuring an outside diameter of 340 mm, an inside diameter of 216 mm and an overall height of 39 mm. Its construction is designed to accommodate radial loads, axial loads and overturning moments in rotating mechanical assemblies. The internal gear has 56 teeth with module 4, while both bearing rings feature mounting holes for installation.

The bearing is also identified by the TGB catalogue designation I.340.16.00.D.1.

Product Characteristics

TECMA DRIVE / TGB I.340.16.00.D1 belongs to the family of internally geared slewing ring bearings.

Unlike conventional ball bearings mounted on rotating shafts, slewing ring bearings enable one structural component to rotate relative to another while supporting combined mechanical loads.

Key features:

• TECMA DRIVE designation: I.340.16.00.D1.

• TGB catalogue designation: I.340.16.00.D.1.

• Product type: Slewing ring bearing.

• Gear configuration: Internal gear.

• Outside diameter: 340 mm.

• Inside diameter: 216 mm.

• Overall height: 39 mm.

• Gear module: 4.

• Number of gear teeth: 56.

• Mounting holes in both bearing rings.

• Designed for rotating machinery and positioning mechanisms.

Technical Specifications

The specified tangential force values relate to the gear teeth, not to the bearing's dynamic or static load ratings.

Permissible axial loads, radial loads and overturning moments must be verified using the technical documentation for the specific bearing configuration.

What Does I.340.16.00.D1 Mean?

The complete designation identifies a specific slewing ring bearing configuration.

I – identifies the internally geared slewing ring bearing series.

340 – nominal outside diameter of 340 mm.

16.00.D1 – additional catalogue identification defining the particular design variant.

The individual elements of the designation should not be interpreted as confirmed technical parameters without the manufacturer's documentation.

Internal Gear – 56 Teeth, Module 4

The I.340.16.00.D1 slewing ring bearing features gear teeth positioned on the inside of the ring.

Gear specifications:

• Gear type: Internal.

• Gear module: 4.

• Number of teeth: 56.

• Gear pitch diameter: 224 mm.

The internal gear allows the slewing ring to work with a suitably designed drive pinion.

This arrangement enables rotational movement to be transmitted to the bearing assembly.

When selecting a mating pinion, it is necessary to verify more than the gear module.

Important factors include:

• Tooth geometry.

• Pressure angle.

• Gear meshing conditions.

• Centre distance.

• Tooth loading.

• Lubrication requirements.

• Operating conditions.

Correct gear compatibility must be confirmed using the relevant technical drawings.

Mounting Holes and Installation Dimensions

TECMA DRIVE I.340.16.00.D1 features two mounting bolt circles.

Outer Mounting Bolt Circle

• Pitch circle diameter: 324 mm.

• Number of mounting holes: 20.

• Hole diameter: 9 mm.

Inner Mounting Bolt Circle

• Pitch circle diameter: 252 mm.

• Number of mounting holes: 20.

• Hole diameter: 9 mm.

The bearing therefore has a total of 40 mounting holes distributed between the two rings.

Exact hole spacing, dimensional tolerances, bolt requirements and mounting surface specifications should be verified using the manufacturer's technical drawing.

How Does a Slewing Ring Bearing Work?

A slewing ring bearing enables controlled rotational movement between two connected structural components.

Depending on the mechanical design, it may accommodate:

• Axial loads.

• Radial loads.

• Overturning moments.

• Combined loads during rotation.

The internal gear allows rotational movement to be driven through a mating pinion.

This arrangement is useful in mechanical systems where a structural component must rotate while supporting significant combined loads.

Typical Applications of Internally Geared Slewing Bearings

Slewing ring bearings with internal gearing are used in various industrial and mechanical systems.

Typical applications include:

• Industrial rotating mechanisms.

• Rotary tables.

• Material handling equipment.

• Positioning systems.

• Selected construction machinery.

• Selected agricultural machinery.

• Industrial manipulators.

• Specialized mechanical assemblies.

These are general applications of internally geared slewing ring bearings.

Compatibility of TECMA DRIVE I.340.16.00.D1 with a particular machine must be confirmed using the equipment manufacturer's technical documentation.

TECMA DRIVE I.340.16.00.D1 vs TGB I.340.16.00.D.1

The designations TECMA DRIVE I.340.16.00.D1 and TGB I.340.16.00.D.1 appear as corresponding references in catalogue cross-reference information.

When selecting a replacement, verify:

1. Outside diameter – 340 mm.

2. Inside diameter – 216 mm.

3. Overall height – 39 mm.

4. Internal gear configuration.

5. Gear module – 4.

6. Number of teeth – 56.

7. Mounting hole arrangement.

8. Ring geometry.

9. Permissible operating loads.

10. Lubrication and installation requirements.

Matching catalogue references should be supported by a comparison of technical drawings before installation.

Load Capacity and Operating Conditions

Slewing ring bearings are designed to accommodate combinations of loads that differ from those typically applied to conventional shaft bearings.

The main loading conditions include radial forces, axial forces and overturning moments.

The permissible load combinations depend on the internal bearing construction and the geometry of the surrounding assembly.

The catalogue values of 10.7 kN and 14.9 kN describe tangential forces associated with the gear teeth.

They must not be interpreted as the axial or radial load capacity of the complete bearing.

Before installation, confirm the manufacturer's load ratings and operating limits for the intended application.

Installation and Maintenance Guidelines

Correct mounting is essential for reliable slewing ring bearing operation.

Recommended precautions:

• Inspect the flatness of mounting surfaces.

• Clean all contact surfaces before installation.

• Verify mounting hole alignment.

• Use fasteners meeting the equipment manufacturer's requirements.

• Follow the specified bolt tightening sequence.

• Apply the correct tightening torques.

• Check the engagement between the internal gear and drive pinion.

• Provide appropriate lubrication for the bearing raceways.

• Lubricate the gear teeth according to the manufacturer's instructions.

• Verify smooth rotational movement after installation.

Incorrect installation may cause uneven load distribution, accelerated raceway wear and damage to the gear teeth.

Frequently Asked Questions

What is TECMA DRIVE I.340.16.00.D1?

It is an internally geared slewing ring bearing designed for suitable rotating mechanical assemblies.

What are its dimensions?

The bearing has a 340 mm outside diameter, 216 mm inside diameter and 39 mm overall height.

Does the bearing have internal gearing?

Yes. It is equipped with gear teeth on the inner side of the ring.

How many gear teeth does it have?

The internal gear has 56 teeth.

What is the gear module?

The gear module is 4.

What is the gear pitch diameter?

The catalogue gear pitch diameter is 224 mm.

How many mounting holes does the bearing have?

It has 20 mounting holes on the outer bolt circle and 20 on the inner bolt circle, giving a total of 40 holes.

What is the mounting hole diameter?

The catalogue specifies 9 mm mounting holes.

What are the mounting pitch circle diameters?

The outer mounting pitch circle diameter is 324 mm, while the inner mounting pitch circle diameter is 252 mm.

How much does TECMA DRIVE I.340.16.00.D1 weigh?

The reference catalogue weight is approximately 12 kg.

Is TGB I.340.16.00.D.1 equivalent to TECMA DRIVE I.340.16.00.D1?

These references appear as corresponding designations in catalogue cross-reference information. Technical drawing compatibility should be confirmed before substitution.

Is this a slewing drive gearbox?

No. It is an internally geared slewing ring bearing.

It can operate with a suitable gear drive, but it is not a complete gearbox or motorized slewing drive assembly.

Can it accommodate axial and radial loads?

Slewing ring bearings are designed to accommodate axial loads, radial loads and overturning moments. The permissible values for this particular model must be verified using manufacturer documentation.

Can this bearing be used in construction machinery?

Potential suitability depends on the equipment design, loading conditions, mounting dimensions and manufacturer specifications.

Does the bearing require lubrication?

Slewing ring bearings generally require appropriate lubrication of their rolling contact surfaces and gear teeth. The lubricant type, quantity and maintenance intervals should follow the manufacturer's instructions.

Can another 340 mm slewing ring bearing replace this model?

Not automatically. Gear geometry, mounting dimensions, internal construction and load capacity must also match.

TECMA DRIVE I.340.16.00.D1 – Key Technical Information

TECMA DRIVE I.340.16.00.D1, also referenced as TGB I.340.16.00.D.1, is an internally geared slewing ring bearing measuring 340x216x39 mm. It features 56 gear teeth with module 4 and two mounting bolt circles with 20 holes each. Its catalogue weight is approximately 12 kg. Correct selection requires verification of the mounting geometry, gear specifications and operating loads.

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