Alpha A2305 JAI 45mm Crown & Drive for 40mm Motors

The Alpha A2305 JAI 45mm Crown & Drive is a tubular motor accessory designed to connect compatible Alpha 40mm motors with several commonly used roller tube systems.

Alpha specifically identifies the A2305 as suitable for:

• JAI 45mm tubing
• Mytec 42mm tubing
• BbB 45mm tubing

This confirmed compatibility makes the A2305 particularly useful when replacing or installing an Alpha motor into one of these roller tube systems.

Designed for Alpha 40mm Motors

Alpha categorises the A2305 within its Crowns & Drives for 40mm Motors range.

It’s important not to confuse the motor size with the tube measurements.

The 40mm designation refers to the compatible motor range, while the 42mm and 45mm measurements in Alpha’s description refer to the compatible roller tubing.

The A2305 provides the components needed to mechanically interface the compatible motor with these specified tubes.

Compatible Roller Tubes

Unlike some crown and drive products where Alpha doesn’t provide a specific tube profile, the A2305 has clearly identified applications.

Alpha states that it suits:

JAI 45mm + Mytec 42mm + BbB 45mm tubing.

This gives customers replacing an existing motor considerably more information when determining whether the A2305 is the correct component.

You should still identify the existing tube system rather than selecting the A2305 simply because a tube measures approximately 42mm or 45mm.

What Does the Crown & Drive Do?

A tubular motor operates from inside the roller tube.

The motor therefore needs correctly matched components to interface with that tube.

The drive transfers rotational movement from the motor to the roller tube. When the motor operates, the drive engages with the tube and causes it to rotate.

The crown forms another part of the motor-to-tube interface.

Together, these components allow the tubular motor to operate correctly within a compatible roller tube system.

Replacing an Existing Blind Motor

The A2305 can be particularly useful when replacing a motor in an existing blind fitted with one of the compatible tube systems.

If you’re removing an existing motor, retain the original crown and drive until the replacement configuration has been confirmed.

Look for identifying marks on the existing components and photograph the end of the roller tube.

Knowing that a tube is approximately 45mm isn’t necessarily enough by itself. The tube system and internal profile also matter.

Three Confirmed Tube Applications

One useful feature of the Alpha A2305 is that Alpha explicitly lists three compatible tubing types rather than associating the product with only one tube.

These are JAI 45mm, Mytec 42mm and BbB 45mm.

This makes the A2305 applicable across several compatible blind configurations while still providing much more precise compatibility information than simply describing it as a generic crown and drive.

Match Your Existing Roller Tube

If you’re unsure whether your existing blind uses one of these tube systems, measure the tube and take a clear photograph looking directly into its end.

Our Match Your Existing Blind Tube to the Correct Crown & Drive guide explains how to collect the information needed to identify a suitable component.

Useful information includes the tube’s inside diameter, internal profile, existing crown and drive, and the model or product code of the motor being replaced.

Key Features

• Genuine Alpha motor accessory
• Product Code: A2305
• Crown and drive combination
• For compatible Alpha 40mm tubular motors
• Suits JAI 45mm tubing
• Suits Mytec 42mm tubing
• Suits BbB 45mm tubing
• Suitable for compatible new and replacement motor installations

Specifications

Brand: Alpha Motors
Model: A2305
Product Code: A2305
Product Type: Crown & Drive
Motor Range: 40mm Motors
Compatible Tube: JAI 45mm
Compatible Tube: Mytec 42mm
Compatible Tube: BbB 45mm
Special Care: N/A
Warranty: Not specified in the information supplied

Important Compatibility Information

Alpha specifically states that the A2305 suits JAI 45mm tubing, Mytec 42mm tubing and BbB 45mm tubing and categorises the product as a crown and drive for 40mm motors.

Don’t assume compatibility with another 42mm or 45mm tube solely from its nominal diameter. Confirm the tube system and profile before ordering.

FAQs

What is the Alpha A2305?

The A2305 is an Alpha crown and drive designed for compatible 40mm tubular motor installations.

What roller tubes does the Alpha A2305 suit?

Alpha specifies JAI 45mm, Mytec 42mm and BbB 45mm tubing.

Is the A2305 for a 45mm motor?

No. Alpha categorises the A2305 under Crowns & Drives for 40mm Motors. The 45mm measurement refers to compatible tubing.

Does the A2305 fit Mytec 42mm tubing?

Yes. Alpha specifically lists Mytec 42mm among the compatible tubing.

Does it fit JAI 45mm tubing?

Yes. JAI 45mm tubing is specifically listed by Alpha.

Does it fit BbB 45mm tubing?

Yes. Alpha also specifies BbB 45mm tubing.

What is the product code?

The Alpha product code is A2305.