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HTD Standard Pilot Bore Timing Pulleys

HTD Standard timing pulleys are the basic type of HTD pulleys.

They are made of steel or gray cast iron and they are designed as unbored or with a pilot bore.

The pulleys are supplied as a semi-finished product and the bore must be modified before mounting the pulleys on the shafts.

HTD 3M

Tooth pitch: 3.00 mm
Teeth z = 10 - 72

Stand. diameters Dp (mm): 9.55 - 68.75

HTD 5M

Tooth pitch: 5.00 mm
Teeth z = 12 - 72

Stand. diameters Dp (mm): 19.10 - 114.59

HTD 8M

Tooth pitch: 8.00 mm
Teeth z = 22 - 192

Stand. diameters Dp (mm): 56.02 - 488.92

HTD 14M

Tooth pitch: 14.00 mm
Teeth z = 28 - 216

Stand. diameters Dp (mm): 124.78 - 962.57


Pulleys Fields of Use

The HTD standard timing pulleys are designed for all types of HTD and RPP belts.

They are typically used in machine tools, small machinery, compressors, packaging, printing machines, in the food, paper and chemical industry and in many other machines.

Pulleys Material

Steel, cast iron or aluminum alloy.

Other materials to order.

Parameter Standard
Surface roughness ISO 254
Balance quality grade VDI 2060, ISO 1940

Caution

Cast iron pulleys at v < 30 m/s must be balanced.

Pulley Basic Profile

  • Pulley 3M for belts HTD 3M (or 3RPP) with grooves pitch 3.00 mm
  • Pulley 5M for belts HTD 5M (or 5RPP) with grooves pitch 5.00 mm
  • Pulley 8M for belts HTD 8M (or 8RPP) with grooves pitch 8.00 mm
  • Pulley 14M for belts HTD 14M (or 14RPP) with grooves pitch 14.00 mm

Pulley Code Description

Example:
30-8M-20 (Type 6F, Steel)

Code Part Description
30

Number of pulley teeth

8M

Teeth pitch in mm and type of pulleys for belts HTD

20

Width of belt in mm

6F

Type of construction

Steel

Pulley material 

Documents for Download

Dimensions and Parameters of HTD Standard Pilot Bore Timing Pulleys - Preview

Dimensions and Parameters of HTD Standard Pilot Bore Timing Pulleys

TYMA CZ Data Sheets

Czech and English (PDF 1.50 MB)

Pulleys and Clamping Bushes - Preview

Pulleys and Clamping Bushes

TYMA CZ Catalogue

Czech and English (PDF 3.64 MB)