{"product_id":"plastic-mechanical-model-pulley-wheel-drive-belt-cd-adaptor-3mm-steel-shaft","title":"Plastic Mechanical Model Pulley Wheel, Drive Belt, CD Adaptor, Or 3mm Steel Shaft","description":"\u003cp\u003eThis is one item of plastic pulley or other mechanical part shown. The pullies are available in various diameters which are intended to friction push-fit onto 3mm diameter miniature motor shafts. The pulley plastic material is black high impact polystyrene. The pullies, shafts, CD adapters and belts are available on this listing as separate items. The rubber belts are intended for cassette tape drives and they are a good fit for running flat in these pullies.\u003c\/p\u003e\n\u003cp\u003eThe belt size is expressed as a diameter where that is the distance across the centre when it is laid out flat in a circle. The belts have a square cross section of approximately 1.2mm\u003c\/p\u003e\n\u003cp\u003eThe shafts are stainless steel and come in lengths of 75mm or 120mm.\u003c\/p\u003e\n\u003cp\u003eThe CD adapters allow you to fit old compact discs as shown in the demonstration picture. (Old CDs not included!)\u003c\/p\u003e\n\u003cp\u003eHeadline Specifications (mm)\u003cbr\u003e\u003cbr\u003eItem Outer Dia. Groove Dia. Wheel Height Total Height\u003cbr\u003e\u003cbr\u003e20mm Pulley 20.0 15.7 5.9 10.2\u003cbr\u003e30mm Pulley 30.2 25.5 5.9 10.4\u003cbr\u003e40mm Pulley 39.8 35.7 5.9 10.2\u003cbr\u003eCD Adaptor 38.8 N\/A 6.9 13.6\u003cbr\u003e\u003cbr\u003e75mm Shaft 3.0\u003cbr\u003e120mm Shaft 3.0\u003cbr\u003e\u003cbr\u003e40mm Belt\u003cbr\u003e57mm Belt\u003cbr\u003e83mm Belt\u003cbr\u003e87mm Belt\u003c\/p\u003e","brand":"HJW Electronics","offers":[{"title":"20mm Pulley","offer_id":60122956661120,"sku":null,"price":0.9,"currency_code":"GBP","in_stock":true},{"title":"30mm Pulley","offer_id":60122956693888,"sku":null,"price":0.9,"currency_code":"GBP","in_stock":true},{"title":"40mm Pulley","offer_id":60122956726656,"sku":null,"price":0.9,"currency_code":"GBP","in_stock":true},{"title":"CD Adaptor","offer_id":60122956759424,"sku":null,"price":0.9,"currency_code":"GBP","in_stock":true},{"title":"75mm Shaft","offer_id":60122956792192,"sku":null,"price":0.9,"currency_code":"GBP","in_stock":true},{"title":"120mm Shaft","offer_id":60122956824960,"sku":null,"price":0.9,"currency_code":"GBP","in_stock":true},{"title":"40mm Belt","offer_id":60122956857728,"sku":null,"price":0.9,"currency_code":"GBP","in_stock":true},{"title":"57mm Belt","offer_id":60122956890496,"sku":null,"price":0.9,"currency_code":"GBP","in_stock":true},{"title":"83mm Belt","offer_id":60122956923264,"sku":null,"price":0.9,"currency_code":"GBP","in_stock":true},{"title":"87mm Belt","offer_id":60122956956032,"sku":null,"price":0.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/2136\/1280\/files\/over_top_s_f23bf481-41ca-4e62-b9bb-6769360fd811.jpg?v=1792000397","url":"https:\/\/shop.usefulcomponents.com\/products\/plastic-mechanical-model-pulley-wheel-drive-belt-cd-adaptor-3mm-steel-shaft","provider":"HJW Electronics","version":"1.0","type":"link"}