Timken National 416888 Radial Shaft Oil Seal – 4.500" ID x 5.500" OD x 0.500" Width – New

The Timken National 416888 is a solid nitrile oil seal designed for general purpose rotary shaft sealing applications. This seal features a 4.500 in. shaft diameter, 5.506 in. outside diameter, and 0.500 in. overall width, conforming to a 41 design type with dual lip construction and a loaded garter spring. The casing incorporates an inner metal case for structural support, while the multi lip nitrile rubber (NBR) element provides primary sealing against lubricants and contaminants. Operating parameters include a maximum shaft surface speed of 3,000 fpm and a continuous temperature range of minus 40 to 225 degrees Fahrenheit. Misalignment tolerance is rated at 0.015 in. at 800 rpm and 0.010 in. at 4,200 rpm. The 410000 series Timken National 416888 is commonly applied in industrial gearboxes, pumps, mixers, conveyors, and heavy equipment where lubricant retention and exclusion of dirt, moisture, and abrasive contaminants are required. The handwritten markings on the packaging reference a Bullard application (M 457 6 01), indicating prior cross reference use for vertical turret lathe service. Nitrile lip durometer falls within the 60 to 80 range. The part number is 416888 with manufacturer UPC 053893484433. The unit ships in its original Timken National Seal branded box with internal packaging intact. Cross references include National 416888 and SK 34171502J. Typical applications include automotive wheel sealing, industrial bearing protection, and machine tool spindle sealing assemblies operating within the published speed and temperature limits.

Stock # 0226-216