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V Pulley Taperlock by SIT
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  • Our pulleys can be used for application with a speed up to 35m/s. The pulley dimensions are very accurate as they are manufactured only by means of CNC or automatic lathes. 
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  • For higher speed is strongly recomended to use steel as material of construction. Our PBT pulleys are satically balanced according to ISO. 
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  • The PT pulleys are not balanced, as they do not have a finished bores.
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  • Here are the dimensions of "PBT" SPA with taper bush 1210 :
  • Belt type : SPA
  • Taperbush : 1210
  • Shaft diameter range : 12 - 32
  • Pitch diameter : refer to numbers writen after "PBT" in every product name. 
  • For example, product name : PBT080SPA2 (1210); so, the pitch diameter is 80 mm
  • Outside diameter : you can add the pitch diameter with 5.6 to know the length of outside diameter. 
  • For example, the product is PBT080SPA2 (1210); so the outside diameter is 80 + 5.6 = 85.6 mm
  • Groove : refer to the last number in every product name. 
  • For example for PBT080SPA2; so, the groove is 2 
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  • See recomendation taperbush below.
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1 PBT SPZ 150-630 & SPA 71-180.pdf

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