SWR AA66.5 13x10 Double-Sided Hexagonal V-Belt

SWR AA66.5 is a double-sided V-belt, also known as a hexagonal V-belt, double V-belt or double-sided classical V-belt. The AA profile has a nominal cross-section of 13x10 mm and is designed for drive systems in which pulleys can engage both sides of the belt.

The symmetrical double-V construction distinguishes AA66.5 from conventional single-sided A-profile V-belts.

SWR AA66.5 – characteristics

The principal identification features are:

• Brand: SWR
• Designation: AA66.5
• Alternative designation: AA 66.5
• Belt type: Double-sided V-belt
• English technical term: Double-sided V-belt / Hexagonal V-belt
• Profile: AA
• Nominal cross-section: 13x10 mm
• Construction: Symmetrical double-V / hexagonal
• Working surfaces: Both sides

AA66.5 should therefore be identified using the complete combination of designation, AA profile, cross-section and double-sided construction.

AA profile – 13x10 mm

The AA profile belongs to the family of classical double-sided V-belts.

Its nominal cross-section is:

13x10 mm

The double-sided construction produces the characteristic hexagonal cross-section that allows pulley contact on either side of the belt.

This is fundamentally different from a conventional A-profile V-belt, where only one side of the belt cross-section is designed to operate in the pulley groove.

What is a double-sided V-belt?

A double-sided V-belt is designed for belt-drive arrangements where power may need to be transmitted through pulleys located on both sides of the belt.

This type of belt is commonly referred to using several names:

double-sided V-belt
double V-belt
hexagonal V-belt
hex belt
double-sided classical V-belt

These terms describe the characteristic symmetrical belt geometry rather than a timing-belt tooth profile.

What does AA66.5 mean?

The designation contains two important identification elements.

AA – double-sided classical V-belt profile with nominal 13x10 mm cross-section.

66.5 – belt length designation.

For ordering and technical identification, the complete reference should therefore be retained:

SWR AA66.5

The decimal point in 66.5 is significant and should not be removed from the catalogue reference.

AA66.5 is not a timing belt

The term double-sided or hexagonal should not be confused with a double-sided synchronous timing belt.

AA66.5 is a friction-drive V-belt.

Power is transmitted through the V-shaped working surfaces interacting with the corresponding pulley grooves.

It does not rely on synchronous engagement between teeth and toothed pulleys.

This distinction is important when searching for a replacement.

AA profile vs A profile

Although the designations are related to classical V-belt profiles, an AA belt and an A belt are not the same construction.

A profile – conventional single-sided classical V-belt.

AA profile – double-sided / hexagonal classical V-belt.

AA belts are specifically shaped so that either side can engage a compatible V-groove pulley.

Therefore, an A-profile belt should not automatically be substituted for an AA-profile belt.

Why does the double-sided construction matter?

In some drive arrangements, the belt follows a path involving several pulleys positioned on opposite sides.

A standard V-belt has one principal working side.

A double-sided AA belt provides V-shaped working surfaces on both sides, allowing a more complex pulley arrangement where the belt needs to transmit motion through both faces.

Correct belt geometry is therefore essential for:

• pulley engagement,
• belt tracking,
• drive geometry,
• tensioning,
• power transmission,
• correct replacement selection.

Selecting an equivalent for SWR AA66.5

When looking for an alternative to SWR AA66.5, verify:

1. belt type – double-sided V-belt,
2. profile – AA,
3. nominal cross-section – 13x10 mm,
4. exact length designation – 66.5,
5. double-V / hexagonal construction,
6. corresponding metric belt length,
7. pulley compatibility,
8. requirements of the drive system.

A similar belt length alone does not establish interchangeability.

The profile and double-sided construction must also match the original drive requirements.

Search variations for SWR AA66.5

This belt may be searched for using different terminology:

SWR AA66.5
AA66.5 SWR
SWR AA 66.5
AA66.5 V-belt
AA 66.5 double V-belt
AA66.5 double-sided V-belt
AA66.5 hexagonal V-belt
AA66.5 hex belt
AA profile 13x10 belt
13x10 double V-belt

These search variations help identify the same belt family without altering the actual manufacturer designation.

Technical specification

FAQ – SWR AA66.5

What type of belt is SWR AA66.5?

SWR AA66.5 is a double-sided V-belt, also called a hexagonal V-belt or double V-belt.

What is the cross-section of an AA-profile belt?

The nominal cross-section of the AA profile is 13x10 mm.

What does AA mean in AA66.5?

AA identifies a double-sided classical V-belt profile with a symmetrical double-V or hexagonal cross-section.

Is AA66.5 the same as an A-profile V-belt?

No. An A-profile belt is a conventional single-sided V-belt, whereas AA is a double-sided belt designed to work with pulleys on both sides.

Is AA66.5 a timing belt?

No. It is a friction-drive V-belt, not a synchronous toothed timing belt.

Can both sides of an AA belt drive pulleys?

Yes. The characteristic symmetrical double-V construction is designed so that pulleys can engage the belt from either side in a suitable drive arrangement.

Can a standard A belt replace AA66.5?

Not automatically. A replacement should have the correct AA double-sided profile, 13x10 mm cross-section and corresponding length.

What should I check when replacing SWR AA66.5?

Check the AA profile, double-sided construction, nominal 13x10 mm cross-section, exact length designation and compatibility with the pulley arrangement.

AI OVERVIEW

SWR AA66.5 is a double-sided classical V-belt, also known as a hexagonal or double V-belt. The AA profile has a nominal 13x10 mm cross-section and provides V-shaped working surfaces on both sides, allowing compatible pulleys to engage either face of the belt. AA66.5 is a friction-drive V-belt, not a synchronous timing belt.