Timing Belt Materials

Polyurethane is the timing belt material of choice for BRECOflex. Polyurethane is a broad spectrum of many thermoplastic elastomers that are best suited for specific applications.

There are currently 16 types of polyurethane timing belt materials available. The standard is TPU-ST1 which is used for all belt type and BFX belts longer than 720mm. The standard color is white and the hardness is 92 Shore A. This material is suitable for most applications but if you require something else, see the charts below:

What are the benefits of using polyurethane timing belts over other materials?

Extremely wear resistant
Extensive temperature range
Resistant to petroleum, oils and fats
Ozone and sunlight resistant
No lubrication required

High tooth shear strength
High tension resistance
Allows belt processing with no loss in material properties
Non-marking

Timing Belt Materials For General Use

Type	Products	Color	Hardness	Temperature Range	Comment
TPU-STI	All Belt Types, BFX belts >720mm, profiles	White (other colors available)	92 Shore A	0℃ to +80℃ (+32℉ to +176℉)	Great performance characteristics Suitable for most applications Standard cord is steel
TPU-ST2	All Belt Types, BFX belts >720mm, profiles	Transparent	85 Shore A	5℃ to +50℃ (+41℉ to +122℉)	Higher coefficient of friction Softer profile material Flexible at lower temperture Increased resistance to hydrolysis Standard cord is Kevlar
TPU-ST3	All Belt Types, BFX belts >720mm	Transparent	92 Shore A	0℃ to +80℃ (+32℉ to +176℉)	Meets FDA regulations
TPU-N1	Profiles	White	96 Shore A	0℃ to +80℃ (+32℉ to +176℉)	High wear resistance For thin walled profiles
TPU-N2	Profiles	Transparent	98 Shore A	0℃ to +80℃ (+3℉ to +176℉)	High wear resistance For thin walled profiles Fiberglass Reinforced
TPU-B1	Profiles	Transparent	60 Shore A	0℃ to +80℃ (+32℉ to +176℉)	High flexibility High coefficient of friction For delicate product conveying
PA-N1	ATN Profiles	Black	-	0℃ to +80℃ (+32℉ to +176℉)	Contact Temp. up to 120℃ (248℉) E-modulus: 14,500 N/mm2 Fiberglass reinforced
TPU-SM1	ATP Belts	Transparent	92 Shore A	0℃ to +80℃ (+32℉ to +176℉)	For ATP pitch timing belts only

Food Grade Polyurethane Timing Belt Material

Type	Products	Color	Hardness	Temperature Range	Comment
TPU-FDA1	All Belt Types, BFX belts, profiles	Transparent	92 Shore A	0℃ to +80℃ (+32℉ to +176℉)	Suitable for intermittent cleaning with diluted cleaning agents Meets FDA Regulations
TPU-FDA2	All Belt Types, BFX belts >720mm, profiles	Transparent	85 Shore A	5℃ to +50℃ (+41℉ to +122℉)	Suitable for intermittent cleaning with diluted cleaning agents Higher coefficient of friction Meets FDA Regulations
TPU-AU1	BFX belts =/<720mm, profiles	Transparent	92 Shore A	0℃ to +50℃ (+32℉ to +122℉)	Suitable for intermittent cleaning with diluted cleaning agents Meets FDA Regulations

Polyurethane Material for Low Ambient Temperatures

Type	Products	Color	Hardness	Temperature Range	Comment
TPU-KF1	All Belt Types, BFX belts, profiles	Transparent	85 Shore A	-25℃ to +5℃ (-13℉ to +41℉)	Reduced strength during cold start-up High resistance to hydrolysis and bacteria
TPU-KF2	All Belt Types, BFX belts, profiles	Transparent	82 Shore A	-30℃ to +10℃ (-22℉ to +141℉)	Reduced strength during cold start-up High resistance to hydrolysis and bacteria

Polyurethane Material for High Ambient Temperatures

Type	Products	Color	Hardness	Temperature Range	Comment
TPU-WB1	All Belt Types, profiles	White	94 Shore A	+20℃ to +110#8451 (+68℉ to +230℉)	Reduced strength during cold start-up High resistance to hydrolysis and bacteria

Anti-Static Polyurethane Timing Belt Material

Type	Products	Color	Hardness	Temperature Range	Comment
TPU-AS1	All Belt Types, profiles	Transparent	92 Shore A	Antistatic ISO 9533 10^9 ohms)	Not recommended for flammable or explosive environments
TPU-AS7	All Belt Types, profile	Black	87 Shore A	Antistatic IEC61340-2-3 10^4 ohms)	Not recommended for flammable or explosive environments

NOTE: Various additional polyurethane materials are available upon request. Contact us for more information.

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