Ready to install sprockets with hub on one side for DIN ISO 606 roller chains. Teeth are milled and inductively hardened.
Keyway acc. to DIN 6885 / BS 4235. The keyway is aligned with the tooth tip.
With two grub screws. One tapped hole aligned with the keyway centre, the other offset by 90°.
Teeth inductively hardened ~HRC 50.