Imao’s sprockets are available from a wide variety of materials and sizes.
RABJ: Chain-Drive Idle Pulleys
・ Light-duty
・ Toothless roller for conflict-free chain rotation
・ Stable rotation with ball bearing
・ Polyacetal plastic for smooth rotation
・ Applicable to chain No. 35, 40, 50, 60
・ For 6mm, 10mm, 12mm and 15mm diameter spindle
Use with PID Idler Pins.
Materials:
Pulley body: Polyacetal plastic, Black
Bearing and Retaining Ring: Steel
Datasheet: https://www.imao.co.jp/files/on-cat/pdf/en/rabj-e.pdf