Can I Order a Different Diameter Pendulum for Clock Kit GMKIT7?

Bell Strike Clock Kit GMKIT7

$750.00

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Can I Order a Different Diameter Pendulum for Clock Kit GMKIT7?

Many clockmakers building the Bell Strike Clock Kit GMKIT7 wonder if they can customize their project by using a different pendulum diameter. Whether you’re working within a narrow case or want a larger visual centerpiece, choosing the right pendulum size matters for both appearance and accuracy. Let’s explore what’s possible with this kit and what options Clockworks offers.

What Comes with the GMKIT7 Kit?

The Bell Strike Clock Kit GMKIT7 includes everything you need to build a striking, weight-driven mechanical clock. It’s one of the most popular complete kits at Clockworks for both beginners and seasoned hobbyists.

Included components:

• Bell strike movement
• Hour and half-hour chime hammer and bell
• Matching hands and dial
• Chain-driven weight system (two weights)
• Suspension spring, leader, and pendulum
• Standard pendulum bob and rod matched to the movement

This full kit ensures you won’t have to guess at compatibility.

Purchase the full set here: Bell Strike Clock Kit

What Is the Standard Pendulum Size in the Kit?

The GMKIT7 includes a pendulum rod and bob that are pre-selected to match the movement’s beat rate and case dimensions. The standard bob diameter, a size that suits most average wall clock builds. The rod length also corresponds to the beat length of the movement, which affects the timekeeping accuracy.

This default setup gives you plug-and-play assembly without needing calculations or tuning.

GMKIT7 Pendulum Diameter: Can You Change the Pendulum Diameter?

Yes, Clockworks allows you to order a different diameter pendulum bob for the GMKIT7—but with some important guidelines:

• Must maintain the same pendulum length if you want accurate timekeeping.
• Larger or smaller bobs affect aesthetics, not function, unless their weight disrupts the beat.
• Changes in bob weight or rod thickness can slightly impact how the clock keeps time.

How Do You Request a Custom GMKIT7 Pendulum Diameter?

When placing your order for the GMKIT7 kit, include a note in the Order Comments section specifying the bob diameter you’d prefer. You can request common alternatives

Does Clockworks Offer Help Matching Pendulum Sizes?

Yes. If you aren’t sure what diameter to choose, email Clockworks with a photo of your case, movement, and desired bob appearance. We’ll help determine which sizes will fit both visually and functionally. It’s always better to get expert input than to guess and need a second shipment.

GMKIT7 Pendulum Diameter: Will Changing the Bob Affect Timekeeping?

It might—if you also alter the rod length or significantly change the bob’s weight. The pendulum length controls how fast the clock ticks. If the new bob is much heavier or lighter than the original, it could throw off the rhythm, even if the rod remains unchanged.

To maintain accuracy:

What If You Already Ordered the Kit?

No problem. If you’ve already placed your order, contact Clockworks immediately with your order number and pendulum diameter request. If the kit hasn’t shipped yet, we’ll swap the bob before packaging. If it’s already shipped, we can send you a standalone replacement bob that fits your rod.

We also provide standalone pendulum bobs in our parts section—just match the rod thickness before ordering.

In Summary:

Yes, you can order a different diameter pendulum for the Bell Strike Clock Kit GMKIT7, as long as you keep the pendulum length consistent with the movement’s beat requirements. Clockworks offers several sizes and can assist you in choosing a bob that fits your case and keeps time accurately.

Updated on: 11/07/2025