www.jbj.co.uk/couplings.html #DriveLineHarmony ® SIT Taper Bushing SER-SIT 76 Description Ser-SiT® taper lock bush is designed to give the following: » Perfect assembly. » Rapid dismounting of the pulley and other transmission equipment. » No special tools requirement except hexagonal key. The large range of available finished bores ensures that an immediate assembly can be made thus avoiding costly factory downtime. Fastening by Ser-SiT® bushes allows the removal of any clearance between hub and bore so that fretting corrosion is positively eliminated. Ser-SiT® bushes are interchangeable with all similar types sold throughout the world. Keyway Reduced keyway to be considered only for cases shown in the below table. UNI 6604-69 / DIN 6885 t Bore Diameter b t Bore Diameter b t Bore Diameter Taper Bushing b 2 2 2 (mm) (mm) (mm) (inch) (inch) (inch) (mm) SER-SIT® (mm) (mm) 9 - 10 3 1.4 ³⁄ - ¹⁄ ¹⁄ ¹⁄ 24 - 25 1008 8 1.3 11 - 12 4 1.8 ⁹⁄ - ³⁄ ³⁄ ³⁄ 28 1108 8 1.3 13 - 17 5 2.3 ¹³⁄ - 1 ¹⁄ ¹⁄ 35 1310 10 1.3 18 - 22 6 2.8 1¹⁄ - 1¹⁄ ⁵⁄ ¹⁄ 42 1615 12 2.2 23 - 30 8 3.3 1⁵⁄ ³⁄ ¹⁄ 65 2517 18 3.3 31 - 38 10 3.3 1⁵⁄ - 1³⁄ ⁷⁄ ⁵⁄ t Bore Diameter Taper Bushing b 2 39 - 44 12 3.3 1⁷⁄ - 2 ¹⁄ ⁵⁄ (inch) SER-SIT® (inch) (inch) 45 - 50 14 3.8 2¹⁄ - 2¹⁄ ⁵⁄ ⁷⁄ 1 1008 ¹⁄ ¹⁄ 51 - 58 16 4.3 2⁵⁄ - 3 ³⁄ ¹⁄ 1¹⁄ 1108 ⁵⁄ ⁵⁄ 59 - 65 18 4.4 3¹⁄ - 3¹⁄ ⁷⁄ ⁵⁄ 1⁵⁄ - 1³⁄ 1615 ⁷⁄ ¹⁄ 66 - 75 20 4.9 3³⁄ - 4 1 ³⁄ 3¹⁄ 3535 ⁷⁄ ¹⁄ 76 - 85 22 5.4 4¹⁄ - 5 1¹⁄ ⁷⁄ 3³⁄ - 4 4040 1 ¹⁄ 86 - 95 25 5.4 96 - 110 28 6.4 111 - 130 32 7.4 t2 L D d b
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