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Shanks and Flanges

The WNG Composite Hammer Shank combines a composite Shank Butt and a Carbon Tube Shank. The Shank Butt is made from the standard WNG black composite and the Carbon Tube Shank is a pultrusion made from Carbon Fiber and Epoxy. The resulting part is extraordinarily stiff and does not suffer from the tendency of a wooden shank to bend and whip

More Information:

The video on the right was filmed using a high-speed camera and shows what happens when a wooden shank and a WNG Carbon Tube Shank are played. It explains that because wood is an organic material, its quality is very inconsistent and out of an entire set of shanks, only a few are truly "strong", yet every shank is used.

A WNG Carbon Tube Shank's strength is as strong as the strongest wooden shank, but doesn't have the variability in quality that wood does. You can be sure that every WNG Carbon Tube Shank is as strong as the one next to it, and that any piano action equipped with WNG's Carbon Tube Shanks will see a notable increase in power, consistency, and longevity.

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The Completely Redesigned WNG Hammer Shank

What is "whipping"?

A hammer shank has a rough life. When a pianist plays a key, the hammer is required to accelerate at roughly 5 times the rate of the key. A wooden shank lacks the strength required to accelerate the hammer this rapidly and thus bends backwards for a short period of time. The shank then becomes a spring capturing some of the energy of the blow. A few milliseconds later, the shank then whips forward. It does not, however, recover all of the captured energy.

Does a shank really need to whip?

No! For years whipping was thought necessary for the simple reason that all wooden hammer shanks exhibited this behavior.

When a wooden hammer shank bends under its load, some of the energy that should actuate its strings is lost, dissipating into the fibers of the wooden shank as heat. Because of this, a wooden hammer shank is very inefficient.

To eliminate this problem, WNG uses a carbon shank which is very stiff and minimizes bending. Substantially less energy is lost to bending, thus the WNG carbon shank is much more efficient. This translates into much more powerful sound when a note is played.

Three Levels of Strength

Wessell, Nickel & Gross’ carbon fiber shanks come in three strengths: Flex 1, Flex 2, and Flex 3. The strength of each Flex is based on information taken from 40 different sets of wooden shanks.

Flex 1 shanks are as strong as the strongest wooden shank
Flex 2 shanks are as strong as the strongest Renner shank
Flex 3 shanks are as strong as the average of all 40 sets of wooden shanks

Each shank in every Flex has an outer diameter of 4.67mm and a wall thickness of .80mm. The same drill bit can be used for all three shank Flexes.

Hard Bushings

Cloth bushings have problems:

- Cloth bushings are unstable in a changing humidity environment
- As cloth bushings change, center pin torque changes
- As pin torque changes so does the touch of the piano

In comparison, hard bushings are quite advantageous:

- Hard bushings are dimensionally stable as humidity changes
- When exposed to changing humidity, pin torque change is negligible
- The change in the touch of a piano is negligible

Test Results: After 18 million blows, pin torque exhibited virtually no change. In extreme environments, from 10% to 90% Equilibrium Moisture Content, pin torque was stable.

Read how Wessell, Nickel & Gross succeeds where Teflon bushings failed...

Dimensionally Accurate Flanges

WNG has carefully engineered flanges for popular models so that the flanges provide a correct fit to the existing rails.

Organized into sets for popular models of pianos

WNG has organized sets of shanks and flanges for a number of popular pianos. Each set includes the appropriate flange, knuckle location and knuckle diameter. All sets feature three tube graduations for power and sustain.

Select one of our pre-configured models, or configure your own custom shank and flange.

Drill Bit - Hammer Boring, Flex 1

One drill bit. 4.9mm for flex 1 shank tubes.

Part Number: 06-5614

Drill Bit - Hammer Boring, Flex 2

One drill bit. 4.15 mm for flex 2 shank tubes.

Part Number: 06-5661

Drill Bit - Hammer Boring, Flex 3

One drill bit. 3.6 mm for flex 3 shank tubes.

Part Number: 06-5662

Aeolian Mason & Hamlin Shank & Flange Set,

Features low leverage, a large knuckle and an Aeolian Mason & Hamlin flange. Set of 90.

Part Number: 06-5104-10

Aeolian Mason & Hamlin Shank & Flange Set, (knuckles not attached)

Features a large knuckle and an Aeolian Mason & Hamlin flange. Set of 90. Knuckles not attached More Information:

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Part Number: 06-5104-11

Aeolian Mason & Hamlin Shank & Flange Set, Flex 2

Features low leverage, a large knuckle and an Aeolian Mason & Hamlin flange. Set of 90.

Part Number: 06-5104-20

Aeolian T1 Shank & Flange Set, Flex 2 (knuckles not attached)

Features low leverage, a large knuckle and an Aeolian T2 flange. Knuckles included but not attached. Set of 90.

Part Number: 06-5104-21

Aeolian T2 Shank & Flange Set, Flex 1 (knuckles attached)

Features low leverage, a large knuckle and an Aeolian T2 flange. Set of 90.

Part Number: 06-5291-10

Aeolian T2 Shank & Flange Set, Flex 1 (knuckles not attached)

Features a large knuckle and an Aeolian T2 flange. Set of 90. More Information:

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Part Number: 06-5291-11

Aeolian T2 Shank & Flange Set, Flex 2 (knuckles attached)

Features low leverage, a large knuckle and an Aeolian T2 flange. Flex2. Set of 90.

Part Number: 06-5291-20

Aeolian T2 Shank & Flange Set, Flex 2 (knuckles not attached)

Features low leverage, a large knuckle and an Aeolian T2 flange. Flex2. Knuckles included but not attached. Set of 90.

Part Number: 06-5291-21

Baldwin Short Shank & Flange Set,

Features low leverage, a large knuckle, and a Baldwin flange. Set of 90.

Part Number: 06-5105-10

Baldwin Short Shank & Flange Set, (knuckles not attached)

Features a large knuckle, and a Baldwin flange. Set of 90. Knuckles not attached More Information:

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Part Number: 06-5105-11

Baldwin Short Shank & Flange Set, Flex 2

Features low leverage, a large knuckle, and a Baldwin flange . Set of 90. More Information:

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Part Number: 06-5105-20

Baldwin Short Shank & Flange Set, Flex 2 (knuckles not attached)

Features low leverage, a large knuckle, and a Baldwin flange. Flex2, Knuckles included but not attached. Set of 90.

Part Number: 06-5105-21

Baldwin T2 Short Shank & Flange Set, Flex 1

Features low leverage, a large knuckle, and a Baldwin T2 flange. Set of 90.

Part Number: 06-5430-10

Baldwin T2 Short Shank & Flange Set, Flex 1, Without knuckles attached

Features low leverage, a large knuckle, and a Baldwin T2 flange. Without knuckles attached. Set of 90.

Part Number: 06-5430-11

Custom Shank & Flange Set

Create your own custom shank & flange set by choosing the leverage (X), knuckle size (Y), and flange (Z). Set of 90.

Part Number: 06-5106-10

Custom Shank & Flange Set, (knuckles not attached)

Create your own custom shank & flange set by choosing the knuckle size (Y), and flange (Z). Set of 90. More Information:

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Part Number: 06-5106-11

Custom Shank & Flange Set, Flex2

Create your own custom shank & flange set by choosing the leverage (X), knuckle size (Y), and flange (Z). Flex2, Set of 90.

Part Number: 06-5106-20

Custom Shank & Flange Set, Flex2 (knuckles not attached)

Create your own custom shank & flange set by choosing the leverage (X), knuckle size (Y), and flange (Z). Flex2, Knuckles not attached. Set of 90.

Part Number: 06-5106-21

Kawai T1 Shank & Flange Set, Flex 1

Features low leverage, a large knuckle and a Kawai T1 flange. Set of 90.

Part Number: 06-5289-10

Kawai T1 Shank & Flange Set, Flex 1 (knuckles not attached)

Features a large knuckle and a Kawai T1 flange. Set of 90. Knuckles not attached More Information:

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Part Number: 06-5289-11

Kawai T1 Shank & Flange Set, Flex 2

Features a large knuckle and a Kawai T1 flange. Flex2. Set of 90.

Part Number: 06-5289-20

Kawai T1 Shank & Flange Set, Flex 2 (knuckles not attached)

Features a large knuckle and a Kawai T1 flange. Knuckles not attached. Set of 90.

Part Number: 06-5289-21

Knabe T1 Shank & Flange Set,

Features low leverage, a large knuckle and a Knabe T1 flange. Set of 90.

Part Number: 06-5111-10

Knabe T1 Shank & Flange Set, (knuckles not attached)

Features a large knuckle and a Knabe T1 flange. Set of 90. Knuckles not attached More Information:

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Part Number: 06-5111-11

Knabe T1 Shank & Flange Set, Flex 2

Features low leverage, a large knuckle and a Knabe T1 flange. Set of 90.

Part Number: 06-5111-20

Knabe T1 Shank & Flange Set, Flex 2 (knuckles not attached)

Features low leverage, a large knuckle and a Knabe T1 flange. Knuckles included but not attached. Set of 90.

Part Number: 06-5111-21

Mason & Hamlin Shank & Flange Set for Tubular Rail,

For Mason & Hamlin Pianos with serial number 90,000 and above. Features low leverage, a medium knuckle, and a Mason & Hamlin flange. Set of 90.

Part Number: 06-5108-10

Mason & Hamlin Shank & Flange Set for Tubular Rail, (knuckles not attached)

For Mason & Hamlin Pianos with serial number 90,000 and above. Features a medium knuckle, and a Mason & Hamlin flange. Set of 90. Kuckles not attached More Information:

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Part Number: 06-5108-11

Mason & Hamlin Shank & Flange Set for Tubular Rail, Flex 2

For Mason & Hamlin Pianos with serial number 90,000 and above. Features low leverage, a medium knuckle, and a Mason & Hamlin flange. Set of 90.

Part Number: 06-5108-20

Mason & Hamlin Shank & Flange Set for Tubular Rail, Flex 2 (knuckles not attached)

For Mason & Hamlin Pianos with serial number 90,000 and above. Features low leverage, a medium knuckle, and a Mason & Hamlin flange. Knuckles included but not attached. Set of 90.

Part Number: 06-5108-21

Mason & Hamlin Standard Shank for tubular rail, ea.,

Features low leverage, a large knuckle, and a Mason & Hamlin flange. Set of 90.

Part Number: 06-0027

Mason & Hamlin Standard Shank for tubular rail, ea., Flex 2

Features low leverage, a large knuckle, and a Mason & Hamlin flange. Set of 90.

Part Number: 06-0570

Renner Type / Baldwin Long Shank & Flange Set (knuckles not attached)

Features a large knuckle, and a Renner flange. Set of 90. Knuckles not attached More Information:

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Part Number: 06-5110-11

Renner Type / Baldwin Long Shank & Flange Set,

Features low leverage, a large knuckle, and a Renner flange. Set of 90.

Part Number: 06-5110-10

Renner Type / Baldwin Long Shank & Flange Set, Flex 2

Features low leverage, a large knuckle, and a Renner flange. Set of 90.

Part Number: 06-5110-20

Renner Type / Baldwin Long Shank & Flange Set, Flex 2 (knuckles not attached)

Features low leverage, a large knuckle, and a Renner flange. Knuckles included but not attached. Set of 90.

Part Number: 06-5110-21

Renner Type / Baldwin Long Shank, ea., Flex 1

Features low leverage, a large knuckle, and a Renner flange. Each More Information:

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Part Number: 06-0194

Steinway Shank & Flange, ea., Flex 1

Features low leverage, a large knuckle, and Steinway flange. Each More Information:

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Part Number: 06-0311

Steinway Type 1 Shank & Flange Set

Features high leverage, a medium knuckle, and a New York flange. Set of 90.

Part Number: 06-5100-10

Steinway Type 1 Shank & Flange Set, (knuckles not attached)

Features a medium knuckle, and a New York flange. Set of 90. Knuckles not attached More Information:

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Part Number: 06-5100-11

Steinway Type 1 Shank & Flange Set, Flex 2

Features high leverage, a medium knuckle, and a New York flange. Set of 90.

Part Number: 06-5100-20

Steinway Type 1 Shank & Flange Set, Flex 2 (knuckles not attached)

Features high leverage, a medium knuckle, and a New York flange. Knuckle are included but not attached. Set of 90.

Part Number: 06-5100-21

Steinway Type 2 Shank & Flange Set,

Features medium leverage, a large knuckle, and a New York flange. Set of 90.

Part Number: 06-5101-10

Steinway Type 2 Shank & Flange Set, (knuckles not attached)

Features a large knuckle, and a New York flange. Set of 90. knuckles not attached More Information:

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Part Number: 06-5101-11

Steinway Type 2 Shank & Flange Set, Flex 2

Features medium leverage, a large knuckle, and a New York flange. Set of 90.

Part Number: 06-5101-20

Steinway Type 2 Shank & Flange Set, Flex 2 (knuckles not attached)

Features medium leverage, a large knuckle, and a New York flange. Knuckles are included but not attached. Set of 90.

Part Number: 06-5101-21

Steinway Type 3 Shank & Flange Set,

Features low leverage, a large knuckle, and a Hamburg flange. Set of 90.

Part Number: 06-5102-10

Steinway Type 3 Shank & Flange Set, (knuckles not attached)

Features a large knuckle, and a Hamburg flange. Set of 90. Knuckles not attached More Information:

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Part Number: 06-5102-11

Steinway Type 3 Shank & Flange Set, Flex 2

Features low leverage, a large knuckle, and a Hamburg flange. Set of 90.

Part Number: 06-5102-20

Steinway Type 3 Shank & Flange Set, Flex 2 (knuckles not attached)

Features low leverage, a large knuckle, and a Hamburg flange. Kuckles are included but not attached. Set of 90.

Part Number: 06-5102-21

Steinway Type 4 Shank & Flange Set,

Features low leverage, a large knuckle and a New York flange. Set of 90.

Part Number: 06-5103-10

Steinway Type 4 Shank & Flange Set, (knuckles not attached)

Features a large knuckle and a New York flange. Set of 90. Knuckles not attached More Information:

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Part Number: 06-5103-11

Steinway Type 4 Shank & Flange Set, Flex 2

Features low leverage, a large knuckle and a New York flange. Set of 90.

Part Number: 06-5103-20

Steinway Type 4 Shank & Flange Set, Flex 2 (knuckles not attached)

Features low leverage, a large knuckle and a New York flange. Knuckles are included but not attached. Set of 90.

Part Number: 06-5103-21

Steinway Type 5 Shank & Flange Set, (knuckles not attached)

Features a large knuckle and a New York flange. Knuckles not attached. Set of 90.

Part Number: 06-5380-11

Steinway Type 5 Shank & Flange Set, Flex 1

Features high leverage, a large knuckle and a New York flange. Set of 90.

Part Number: 06-5380-10

Steinway Type 5 Shank & Flange Set, Flex 2

Features high leverage, a large knuckle and a New York flange. Set of 90.

Part Number: 06-5380-20

Steinway Type 5 Shank & Flange Set, Flex 2 (knuckles not attached)

Features a large knuckle and a New York flange. Knuckles not attached. Set of 90.

Part Number: 06-5380-21

Wessell, Nickel & Gross Classic Shank & Flange Set,

For pre-Aeolian Mason & Hamlin and other pianos. Features low leverage, a large knuckle and a WNG flange. Set of 90.

Part Number: 06-5109-10

Wessell, Nickel & Gross Classic Shank & Flange Set, (knuckles not attached)

For pre-Aeolian Mason & Hamlin and other pianos. Features a large knuckle and a WNG flange. Knuckles not attached. Set of 90.

Part Number: 06-5109-11

Wessell, Nickel & Gross Classic Shank & Flange Set, Flex 2

For pre-Aeolian Mason & Hamlin and other pianos. Features low leverage, a large knuckle and a WNG flange. Set of 90.

Part Number: 06-5109-20

Wessell, Nickel & Gross Classic Shank & Flange Set, Flex 2 (knuckles not attached)

For pre-Aeolian Mason & Hamlin and other pianos. Features a large knuckle and a WNG flange. Set of 90. Knuckles not attached

Part Number: 06-5109-21

WNG Grand Shank/Butt assembly, W- knuckle, Set of 90

Grand Shank/Butt assembly (no Flange) without knuckles attached, Specify knuckle size and knuckle position.

Part Number: 06-5298

WNG Manufacturer Sample Parts Kit

Sample kit for piano manufacturers.

Part Number: 06-5325

WNG Sample Parts Kit

WNG offers a Sample Parts Kit to aid technicians in determining which parts will work best on a specific piano. The kit consists of several pre-assembled shanks and repetition assemblies that will fit most common piano brands and which can be installed on a trial basis. It also contains a variety of flanges, shanks, and knuckles so that a custom action can be built to match most pianos. With nine different repetition heel heights that can be placed in fourteen different positions, a technician has the ability to experiment with different combinations to improve the geometry of the piano action.

Part Number: 06-5231

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Part Number: 06-5107-11

Young Chang / Yamaha Shank & Flange Set, Flex 2

Features low leverage, a large knuckle and a Yamaha flange. Set of 90.

Part Number: 06-5107-20

Young Chang / Yamaha Shank & Flange Set, Flex 2 (knuckles not attached)

Features low leverage, a large knuckle and a Yamaha flange. Knuckles included but not attached. Set of 90.

Part Number: 06-5107-21