TSUBAKI Bearing Bush Chain
High Precision Series

Features needles between pins and bushes. Initial elongation (0.02%) is less than with bearing cage chain. Will not elongate further after that.

Top surfaces of attachments are ground. Space between bushes and rollers is smaller.

Features

• Initial elongation (0.02%) is less than with bearing cage chain.
• 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: -10ºC to 150ºC

* Use a lubricant appropriate for the operating temperature.

Structure

* Space between pins and bushes has been greased.

Wear elongation line graph

Operating Conditions

• Chain number: RF2040R-NB
• Chain load: 0.78kN{80kgf}
• Chain speed: 70m/min (accelerated test)
• Sprocket no. of teeth: 12T x 12T
• No. of links: 44
• Continuous operation

Reference Number System

(1) Chain size
(2) Roller type: R rollers only
(3) Chain series: NB = Standard Series, NBH = High Precision Series, NB-SS = SS Series (stainless steel)
(4) Attachment spacing
(5) Attachment type

Dimensions/Specifications