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Christoph's Tape Pages
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The Belt Database.
Since I know how difficult it is to determine the size of a belt that is already completely “crumbled,” here are the (measured) specifications for some tape belts. The length specifications always refer to the single length (straps folded together). This value must be doubled for the circumference of the belt. All length specifications were measured on used belts. Therefore, select a length that is approx. 5% shorter for new belts. I have tried to measure as accurately as possible, but cannot guarantee the accuracy of the information provided.
 
The information under “Type” in the table is based on the belts found. However, it is possible that over the years the original belt has been replaced by a “similar” one. For example, triangular instead of square or round. There were also changes made by the manufacturers (during the sometimes quite long construction periods), for example in the case of the “Uher Report” devices, where different belt shapes were installed at the factory. This is generally not a problem as long as the belt does not run too far to the outside of the pulley and thus jumps off or significantly changes the transmission ratio.
 
Another tip regarding the triangular belts that were used by Uher for a long time. These are hardly available anymore today. However, in almost all cases, square belts can also be used as replacements. The Report devices are an exception. There is not enough space here, so a square belt runs along the periphery. Round belts should be used instead for these devices.
 
If anyone has any information about Belts, I would be grateful if you could send me an email (it will then be posted here).
Braun TG 1000/1020
Usage Length Typ Diameter Comment Order Number
Counter 13,5 cm round 1,5 mm Two identical belts are installed, as the drive is via a deflection pulley.  
Main belt 17 cm Flat 5x0,5 mm    
Dual TG 28 CV
Usage Length Typ Diameter Comment Order Number
Main belt 18 cm round 2 mm    
Grundig Reporter 300/500/700
Usage Length Typ Diameter Comment Order Number
Main belt   round 3,5 mm Daten wurden von Andreas bereitgestellt. Hier seine Beschreibung:
Measured using a used, intact original belt. Round belt, diameter 3.5 mm, extended length of the cut belt: 660 mm, corresponding to an inner diameter of 210 mm when the belt is laid out in a circle.
 
Grundig TK 845
Usage Length Typ Diameter Comment Order Number
Main belt 12,8 cm square 2x2 mm    
Philips N 4414
Usage Length Typ Diameter Comment Order Number
Counter 20,5 cm square 1x1 mm   4822 358 30186
Main belt 18,5 cm square 2x2 mm   4822 358 30135
Winding motor 20,7 cm square 2x2 mm 2 pieces available (left and right winding motor) 4822 358 30127
Philips N 4450
Usage Length Typ Diameter Comment Order Number
Counter 15,5 cm square 1x1 mm   4822 358 30045
Main belt 32 cm square 2x2 mm   4822 358 30163
Winding motor 20,7 cm square 2x2 mm 2 pieces available (left and right winding motor) 4822 358 30127
Philips N 4504
Usage Length Typ Diameter Comment Order Number
Counter 17,5 cm square 1x1 mm    
Main belt 18 cm square 1x1 mm    
Winding motor 18,5 cm square 2x2 mm 2 pieces available (left and right winding motor)  
Philips Pro 12
Usage Length Typ Diameter Comment Order Number
Main belt 20,7 cm Flat 5x0,6 mm Data provided by Richard from the Netherlands, thank you.  
Revox A77
Usage Length Typ Diameter Comment Order Number
Counter 16,5 cm round 2 mm    
Revox D36
Usage Length Typ Diameter Comment Order Number
Counter 18 cm round 3 mm Probably also fits other devices from the 36 series.  
Thorens TD 146/166
Usage Length Typ Diameter Comment Order Number
Main belt 26,5 cm Flat 4x0,8 mm Probably also suitable for other Thorens models.  
Uher Report 4000/4200/4400
Usage Length Typ Diameter Comment Order Number
Counter 15,5 cm round 1,5 mm    
Main belt (short) 6,5 cm triangular 2x2x2 mm    
Main belt (long) 12,5 cm triangular 2x2x2 mm    
Uher SG 520 Variocord
Usage Length Typ Diameter Comment Order Number
Main belt 13 cm round 3,5 mm Data provided by Michael, thank you.  
Counter 17,5 cm round 1,5 mm Data provided by Hubertus, thank you.  
Uher Royal de luxe / Royal de luxe C
Usage Length Typ Diameter Comment Order Number
Main belt 13 cm dreieck 3x3 mm    
Uher SG 630/631
Usage Length Typ Diameter Comment Order Number
Counter 24 cm round 1,5 mm   030025
Main belt 17 cm Flat 5x0,5 mm   030009
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