Designation:

20x30x7 TС (DIN 3760/3761)
2.2-20x30-1 (GOST 8752-79)

Dimension:

ID - 20 mm;
OD - 30 mm;
Width - 7 mm

Compound:

NBR, black

Application:

power transmission systems (e.g. gearbox);
electrical motors;
machinery industry

Features:

Standard steel reinforcement ring;
Standard spring
TC - "twice" cage