{"product_id":"chiaravalli-cha-70-2-70-shaft-mounted-speed-reducer","title":"Chiaravalli CHA 70\/2\/70 Shaft Mounted Speed Reducer (Ø70 mm hollow output shaft)","description":"\u003cp\u003eCHA 70\/2\/70 shaft mounted speed reducer — Chiaravalli's pendular gear unit, made for belt conveyors: size 70, two-stage, ratios 10:1 to 20:1, hollow output shaft Ø70 mm G7, keyway 20 mm wide (BB), 74.9 mm bore-to-key height (BH). Solid input shaft Ø42 mm, key 12 mm wide (DB), 45 mm shaft-to-key height (DH). GG20 painted cast iron case, ground 21NiCrMo2 gears — high efficiency, low noise, easy mounting. A backstop device can be fitted on request so the conveyor cannot run back on an incline (state the free direction of rotation when ordering). A torque tension arm (M16 rod, length 260–410 mm) is available for this size — see the torque arm sheet.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSupplied without oil.\u003c\/strong\u003e Oil-bath lubrication; fill about 14 l of ISO VG 150 to 460 oil by load type and ambient temperature (the catalogue's viscosity table — mineral or synthetic) and set the plugs for your mounting position A, B, C, D, VA or VB (see the mounting-positions sheet). Weight 121 kg.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow to pick from the table:\u003c\/strong\u003e the ratio sets the output speed — at 1400 r\/min input, ratio 10:1 gives 139 r\/min at the hollow shaft. Choose the row whose output speed and rated torque Mn2 cover your conveyor's needs (with a service factor for the load — see the Selection Guide tab), check that your motor's power does not exceed Pn1 and that the belt or chain pull on the input shaft stays within Rn1. Running a 6-pole or 8-pole motor? Press the 900 or 500 r\/min toggle for those figures. Other ratios on request.\u003c\/p\u003e","brand":"Chiaravalli","offers":[{"title":"10:1","offer_id":46279943684181,"sku":"CHA 70\/2\/70 R.10","price":0.0,"currency_code":"ZAR","in_stock":true},{"title":"15:1","offer_id":46279943716949,"sku":"CHA 70\/2\/70 R.15","price":0.0,"currency_code":"ZAR","in_stock":true},{"title":"20:1","offer_id":46279943749717,"sku":"CHA 70\/2\/70 R.20","price":0.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0557\/1595\/4773\/files\/cha-photo_0b8b8aad-cd0f-4c16-b5b6-dfcf7de04f33.jpg?v=1791199851","url":"https:\/\/nusaf.co.za\/products\/chiaravalli-cha-70-2-70-shaft-mounted-speed-reducer","provider":"Nusaf Dynamic Technologies","version":"1.0","type":"link"}