RINGFEDER TNM Elastic Elements
TNM elastic elements are parts designed for RINGFEDER TNM shaft couplings.
RINGFEDER TNM are torsionally flexible, puncture-proof shaft couplings with two metal hubs with front claws and a rubber element. They transmit torque through pressure-stressed elastic buffers connected to each other in an intermediate ring, which absorbs shocks and torsional vibrations. This element is oil resistant and electrically conductive.
Formerly they were sold under the TSCHAN NORMEX designation.
Products are sorted by name in ascending order.
TNM 50 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
14.45€ excl. VAT
17.49€ incl. VAT
TNM 67 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
15.35€ excl. VAT
18.57€ incl. VAT
TNM 82 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
21.23€ excl. VAT
25.69€ incl. VAT
TNM 97 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
33.00€ excl. VAT
39.93€ incl. VAT
TNM 112 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
42.21€ excl. VAT
51.08€ incl. VAT
TNM 128 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
45.15€ excl. VAT
54.63€ incl. VAT
TNM 148 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
47.20€ excl. VAT
57.11€ incl. VAT
TNM 168 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
66.52€ excl. VAT
80.48€ incl. VAT
TNM 194 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
89.40€ excl. VAT
108.18€ incl. VAT
TNM 214 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
133.53€ excl. VAT
161.58€ incl. VAT
TNM 240 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
176.51€ excl. VAT
213.58€ incl. VAT
TNM 265 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
199.28€ excl. VAT
241.12€ incl. VAT
TNM 295 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
At Supplier
Within 2 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
250.82€ excl. VAT
303.49€ incl. VAT
TNM 330 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
319.25€ excl. VAT
386.30€ incl. VAT
TNM 370 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
At Supplier
Within 2 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
367.35€ excl. VAT
444.49€ incl. VAT
TNM 415 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
At Supplier
Within 2 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
446.13€ excl. VAT
539.82€ incl. VAT
TNM 480 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
At Supplier
Within 2 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
625.72€ excl. VAT
757.12€ incl. VAT
TNM 575 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
Shaft Coupling
At Supplier
Within 2 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
797.24€ excl. VAT
964.66€ incl. VAT
Products are sorted by name in ascending order.
Shaft Coupling Construction

- One-piece hubs
- Elastic ring
Typical Applications
RINGFEDER TNM (formerly TSCHAN NORMEX) elastic couplings are designed for the highest requirements in a wide range of industries, especially for compressors, pumps, conveyors and many other machines.
Robust design and excellent damping properties guarantee users maximum operational reliability, especially in applications with significant shock, alternate or vibration loads.
Properties
- Compensates for angular, parallel and axial shaft misalignments of the connected machines
- Elastic elements of two different Shore hardness are available
- Elastic elements operate in temperature ranges of −30 °C to +100 °C
- Replacement of elastic elements without axial movement of the coupled machines (principle of the multi-part design)
- Max. finished bore: 280 mm
- Nominal torque of coupling TKn = 41,000 Nm / TKmax = 97,500 Nm
- Operating speed to nmax = 5000 1/min
Coupling Code Description
Example:
TNM 240 Pb82 - Elastic Ring (82 Shore A, Black, Rubber, Formerly NORMEX)
| Code Part | Description |
|---|---|
| TNM |
RINGFEDER couplings product series |
| 240 |
Outer diameter in mm |
| Pb82 |
Flexible element material designation |
| Elastic Ring |
Part name |
| 82 Shore A |
Element hardness according to the Shore A test |
| Black |
Element Color |
| Rubber |
Element material |
| Formerly NORMEX |
RINGFEDER TNM couplings were sold under the TSCHAN NORMEX brand name for many years. |
Documents for Download
We also provide design and calculation of transmission components, including shaft couplings. In the case of your interest in this service, use the detailed Drive or Coupling Calculation Form.
Shaft Coupling Manufacturer Profile
RINGFEDER POWER TRANSMISSION GMBH is a global supplier of drive and damping technology, building on more than 100 years of experience. The company operates manufacturing facilities and subsidiaries in many countries, complemented by an extensive partner network, ensuring a presence across all continents.
Alongside a wide range of high-quality couplings, RINGFEDER also offers clamping and damping components for applications across numerous industrial sectors.
We are an authorized distributor of shaft couplings from the German company RINGFEDER POWER TRANSMISSION GMBH.

