Grandfather Clock Chime Block with Hardware
Grandfather Clock Chime Block with Hardware
Grandfather Clock Chime Block with Hardware
chime block for hermle 351-050

Grandfather Clock Chime Block with Hardware

(4 reviews)



Grandfather Clock Chime Block

Chime block in V shape for many grandfather clocks. This fits many of the German made post 1950 floor clocks. Will mount to the back of the clock case with the screws that come with the block.

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GO1C-B12-27: $100.00
Mechanical clock chime rods for post 1950 mechanical clocks. Offering the chime block complete with the rods. Clockworks
Chimeblock and RodsWhy the entire chimeblockOrdering the chime blockChime Hammer Adjustment

Please view these information tabs to learn about our Mechanical Clock Chimeblock and Rods

Why we offer only the complete chime-block

We now only offer the complete clock chime-block and rods. The rods are a press fit into the chime-block by machines and it is difficult to get a single rod out. Other times there are threads that go into the block but have such a secure tight fit, you cannot remove them.

Trying to do so would result in more rods breaking. Also there are various threads on the rods that are the replacements and it can create much confusion. It is for these reasons that we now offer the complete clock chime-block and rods.

Overall, it is a tricky thing to get the correct thread size for the individual rod in a chime-block and rod set and have it fit perfect. Not to mention, when the chime-block rod is not the correct size, often enough it gets sent back. Then we get into the situation of trying to swap it out over and over.

Moreover, all of it eventually ends up being a return for a complete chime-block and rods set. So, in the long run it is best to just get a new chime block and rod set from the beginning. That will save a lot of time and frustration.

Chime-block and rods volume

The volume of the clock chime is not alterable by means of the chime-block and rods or the hammer adjustment. These parts have nothing to do with making the clock louder or softer. The only thing that can make the clock louder or quieter is to move the clock case.

If the clock is on a hard wood surface it will be louder. A rug will be quieter. The proximity to the wall can also alter the sound. It has nothing to do with the chime-block and rods.

The content of this website is copyright by Clockworks and written by James Stoudenmire in year 2022

Clock Chime Block Styles

The first step in purchasing a new chime block is to determine the chime block style that is in the clock.

The Styles are side, bottom and back strike.

Figure out which style you need. Then, count how many rods are in the chime block. Measure through the chime block to get the length of the longest rod.

Correspondingly, find this information on the drop down list for the correct chime block and rods.

Bottom Strike Style A

Chime block style A For bottom strike and side strike units.  

Side Strike Style B

Chime block style B For side strike units. Occasionally, you can also use this for back strike diagonal Westminster units.

Back Strike Style C

Chime block style C is for floor clock models (and some wall clocks) with two rows of hammers on the back of the clock movement.

Chime sound in Clock Chime Block Styles

No matter which Clock Chime Block Style you need, there has to be some adjustments made. If the clock chime does not have a clear, crisp tone, do not panic. It could just be a matter of adjusting the hammers on the rods.

The hammer heads are on wires which are meant to be bent. Do this with your fingers, while the hammer head is down.

Just bend the wire that the hammer head is on, one at a time. Keep the hammer head about 1/8” from the rod when it’s at rest. In other words, in the up position. Bend one at a time.

Then, lift and drop it to see if there is a nice crisp tone. Subsequently, do this right down the line with each hammer on whatever chime block style. Make sure each one has a nice tone. In the long run, the chime will sound perfect.

The content of this website is copyright by Clockworks and written by James Stoudenmire in year 2022

Why does Chime Hammer Positioning Need to Occur

Mechanical clock chime hammer positioning is easy to do, and only involves bending the hammer head wires. Upon the initial installation, this was done by the clock maker as well.

When replacing a clock movement need to bend the chime hammers to the chime rods. This is why the hammer heads are on bendable wires.

They are meant to be bent into the perfect position. It is not uncommon to bend them an inch this way or that way. The clock movement will not have the hammers in the perfect spot to make the correct sound when hitting the rods. This is why chime hammer positioning is so important.

Clock Chime Hammer Positioning

A mechanical clock movement has hammers that need to be bent into their final position. The clock-chime hammer position should be so the tops of the hammer heads are about 1/4 inch down from the chime block.

The hammers need to be 1/8 inch away from the rod when at rest. In other words, bend the hammer wires so the head is 1/8 away from the chime rod. This spacing between the head and the rod is so it will not thud or double strike.

Tuning the mechanical clock chime

Down the line, and one hammer at a time, repeat this process. Continue in this manner until you can lift and drop the hammer to create a crisp sound. If each hammer head is done this way the clock will have a nice song in the end.

Often a customer will say the sound is not correct. It is because of improper hammer positioning that this occurs. When performing the above directions correctly the sound is beautiful.

Positioning the 340 / 341 series

The 340 and 341 Hermle clock movement series went through a change in the hammer wires. The hammer heads were on wires but now they are made on flat bars. This is dealt with in the same way as above, it is just not as easy to bend.

The hammer head is on the skinny end of the bar, the bar gets wider as it goes back toward the roll pin.

The point to bend this bar is at the place where it goes from skinny to wide with needle nose pliers. The overall assembly will be higher from the chime block slightly. That is if swapping out the movement with the wire hammer head rod older style.

It is an option to raise the entire chimeblock with a shim underneath it to help with this. It is not an absolute requirement, bending the hammer arms are usually sufficient.

Mechanical Clock-Chime Hammer Positioning

For a clean crisp chime sound

Mechanical Clock-Chime Hammer Positioning

Adjust the hammer wires

Mechanical Clock-Chime Hammer Positioning

Should be about 1/8 away at rest

Mechanical Clock-Chime Hammer Positioning

Sometimes they are bent extreme

The content of this website is copyright by Clockworks and written by James Stoudenmire in year 2022

Grandfather Clock Chime Block

Chime block in V shape for many grandfather clocks measuring 26 inches long and has 12 rods. This fits many of the German made post 1950 floor clocks. Will mount to the back of the clock case with the screws that come with the block. The length of the longest rod from tip to tip through the block is the length to order.

Mounting the Chime Block

The chime block comes with the four bolts that screw it in place, with 4 washers. So you will need four holes through a back board to be able to have this mount in the air on the back side of the clock.

Usually this back board will attach to, or near, the back panel of the clock case. Of course if you are replacing a chime block, the holes may not match up to your old configuration so you may need to drill new holes for the new chime block.

Additional information

Weight6 lbs

8 rods 12 inch, 8 rods 22 inch, 8 rods 27 inch, 12 rods 25 inch

Ask a Clock Question

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1 year ago
Rating :

Perfect thank you

1 year ago

I want to buy chime rod, but I don’t know it exactly correct the parts. If it doesn’t correct or fit? Can I return it?

James Stoudenmire
1 year ago
Reply to  hoangle901

For orders over 20.00 that need to be returned or exchanged please make sure you send it with a note. Sometimes we get things back with no note, and we do not know what to do with it, so please be sure to include a note with your contact information, invoice number and what products you would like for an exchange or if you want a refund. You do not need an RMA number.

Any items that are returned for credit valued over $20 will incur a 15% restocking fee.
Exchanges will incur a reshipping charge. This will be submitted to the same form of payment.
No merchandise may be returned for credit or exchanged after 30 days.
There are no refunds on regeared mechanical clock movements, these custom jobs are for one customer and cant be resold.
There are no refund on shipping charges.
There are no returns or exchanges for orders with product value under $20. Reason = Other retailers usually charge a small item fee of about 5.00 to 10.00, we do not do this. Instead we do not offer refunds or exchanges on orders valued 20.00 or less. We explain everything in detail within the product pages. The explicit instructions are there so that you can order the correct item. It is time consuming and very expensive to keep reshipping and swapping mini movements, keys, etc. Please be sure to read the instructions thoroughly before making any decisions on what to purchase. If you have any questions or concerns after reading the instructions thoroughly, please send an email to and we will be more than happy to help you. We want you to order the correct thing the first time around and get your clock up and running!

3 months ago

I have 8 rods at 27 inches. That one pic 10A looks just like mine. How do I add that to the cart

James Stoudenmire
2 months ago
Reply to  larue702000

1. Select the chime block wanted in the options list
2. Click BUY NOW

James Stoudenmire
30yr Clockmaker
Author of

Bob Snowdale
Bob Snowdale
1 month ago

Just began to install the chime block that I ordered from you. There are two issues, and I’m trying to figure out how to solve them. First, the original block is V-shaped, 4 chimes for the strike and 8 for the chime. The longest rod on the old block is 19.5″. On the new one. the longest is 26″. I could still mount the new block in the clock but one of the rods interferes with the pendulum. If it were tilted back a bit (less than 0.25″), it wouldn’t be a problem. Is there a safe way to bend the rod a bit?

James Stoudenmire
25 days ago
Reply to  Bob Snowdale

See this link of a similar situation for options

​James Stoudenmire
30yr Clockmaker
Author of