Bearing Bush Chain NBH (High Precision) Series

Product photo
  • An indexing conveyor chain using special needles for zero wear elongation.
  • Tsubaki Bearing Bush Chain enables chains to be used in conveyor systems considered impossible up to now. Ideal for automated, laborsaving, or high-speed applications for improved productivity.
  • NBH (High Precision) Series is that top surfaces of attachments are ground, and space between bushes and rollers is smaller.

Features

  • ・Virtually no chain wear elongation after initial elongation (0.02%) following start of operation.
  • ・Top surfaces of attachments are ground, reducing the amount of deviation in height between adjacent plates.
  • ・Pin - bush clearance is half that of Standard Series, minimizing play when engaging the sprocket.
  • ・A wealth of custom configurations is available to meet your needs.
  • ・Can use RF Double Pitch Sprockets for R rollers.
  • ・Operating Temperature Range ：-10℃～150℃
  • ・Use a lubricant appropriate for the operating temperature.

Construction

Construction
  • ※Space between pins and bushes has been greased.

Wear elongation line graph

Wear elongation line graph

Operating conditions

  • ・Chain No. ：RF2040R-NBH
  • ・Chain load ：0.78kN{80kgf}
  • ・Chain speed ：70m/min(Accelerated test )
  • ・Sprocket Teeth ：12T×12T
  • ・No. of links: 44
  • ・Continuous operation

Attachment Types

When selecting sprocket specifications

It is necessary to select a sprocket specification that corresponds to the customer's operating environment and the chain specification used.

Please use standard Double pitch steel sprockets (for R roller) for Bearing bush chain NBH (High precision) series.

Click here for the chain/sprocket compatibility table.

Chain/sprocket compatibility table

Catalogs ・Instruction Manuals

List of Models

※Click the name for more information.

Pitch
mm		 Bearing Bush Chains Roller dia.
mm		 Inner width
of inner link
mm
NB (Standard) Series NBH (High Precision) Series NBSS (Stainless Steel) Series
25.40 RF2040R-NB RF2040R-NBH RF2040R-NBSS 15.88 7.95
31.75 RF2050R-NB RF2050R-NBH RF2050R-NBSS 19.05 9.53
38.10 RF2060R-NB RF2060R-NBH RF2060R-NBSS 22.23 12.70
50.80 RF2080R-NB RF2080R-NBH RF2080R-NBSS 28.58 15.88