SW8-OP 1/2" Bore linear motion ball bushings/bearings, inner diameter(bore)= 1/2" (0.500") inch dimensions with steel retainer, high accurace grade linear bushings, series mainly used in the USA, NB brand (Nippon Bearing Linear Systems), made in Japan.

• L = 1.2500 inch
• B = 0.9625 inch
• W = 0.0459 inch
• D = 0.8750 inch
• D1 = 0.8209 inch
• dr = 0.5000 inch