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1. Made from PU material and modified by special technology., 2. Oil resistance, wear resistance. - details see: https://www.machineto.com/oil-or-wear-resistance-rubber-sieve-cleaning-ball-10212733

Specification

Φ15mm Φ16mm Φ17mm Φ19mm Φ22mm Φ24mm Φ26mm Φ28mm Φ30mm

Φ32mm Φ35mm Φ40mm Φ45mm Φ50mm Φ83mm

Performance index for various raw material of rubber ball

Index	NB	NBR	EPR	PU
Hardness(Shore A)	55~85	55~85	55~85	70~85
Working Temperature(°c)-40~120	-25~100	0~120	0~150	-40~120
Oil Resistance	Ordinary	Good	Ordinary	G00d
Flexibility	Good	Medium	Medium	Medium
Wear Resistance	Medium	Good	Medium	Superior

Note: Other type can be made according to customer's demand.