SPB2840 Dunlop Blue SPB Section V Belt, 17mm Top Width, 14mm Thickness, 2840mm Pitch Length Shields The 81-21 Simplex Taper Lock

The 81-21 Simplex Taper Lock Sprocket is a premium-quality 21-tooth roller chain sprocket designed for use with 81 Simplex (single-strand) roller chain

Inner diameter d: 22mm

053 max 58

They fit on a variety of locknuts with outer diameter(s) 58 - 65mm

Series: HM220100

SPB2840 Dunlop Blue SPB Section V Belt, 17mm Top Width, 14mm Thickness, 2840mm Pitch Length Shields The 81-21 Simplex Taper LockWrapped Wedge Belts are designated by letters standing for their crosssection, e. g. SPA followed by a number e. g. 1600 which specifies the belts pitch length Lp in mm. Due to their high power ratings savings can be made over classical V Belts, smaller pulley diameters and reduced numbers of belts and be incorporated into more compact drives. Wedge Belts are produced to BS3790, DIN 7753 and AFOR T 47 117 standards. They are manufactured in the cross