The 40×52×7mm Double Lip Rotary Oil Shaft Seal is engineered to deliver reliable protection and performance in portal gearboxes and output shaft assemblies. Its TC-style double lip design helps retain critical lubricants while blocking mud, water, and debris from reaching gears and bearings—ideal for demanding off-road environments. Constructed from premium NBR rubber with a reinforced steel outer case, this seal provides excellent resistance to oil, heat, and wear. Designed for durability under harsh conditions, it offers long service life in ATV, UTV, and off-road portal applications. The precise dimensions (40mm ID × 52mm OD × 7mm width) ensure a secure, dependable fit in GDP-compatible portal output shafts and other matching machinery. Commonly used in ATVs, UTVs, custom off-road builds, and heavy-duty equipment, this oil seal helps reduce leaks, minimize downtime, and extend drivetrain component life.