{"product_id":"busch-1800-ho-scale-locomotive-roller-test-stand-3-blocks","title":"Busch 1800 HO Scale Locomotive Roller Test Stand, 3 Blocks","description":"Service, run in, or display your HO locomotives with the Busch 1800 roller test stand, a newly developed and patented rolling road. Roller test stands are used to jack up locomotives so their driving wheels can spin freely; track current is transferred through the stand to the wheels, letting you run a locomotive on the spot for maintenance such as running in a motor or oiling, or simply to present a loco on a shelf or in a display.\u003cbr\u003e\u003cbr\u003eThe Busch 1800 set consists of three roller blocks, each supporting a single axle, since not every axle of a locomotive needs to be cradled. Each block uses two contact surfaces as track supports and passes current from the rails through precision-turned slide rollers to the locomotive's wheels. The blocks can be upgraded with the supplied contact springs to add a center-conductor pickup for three-rail systems. Technical data for item 1800: gauge 16 mm (HO), minimum axle spacing 14 mm, slide-roller diameter 6.5 mm, distance from rail top to wheel support approx. 7 to 8 mm, and a per-block size of 14 x 22.5 x 9 mm (L x W x H).\u003cbr\u003e\u003cbr\u003eKey Features:\u003cbr\u003e- HO scale (1:87) locomotive roller test stand accessory\u003cbr\u003e- Busch item 1800 patented rolling road, set of three roller blocks\u003cbr\u003e- Lets driving wheels spin freely for running-in, servicing, or display\u003cbr\u003e- Transfers track current through precision-turned slide rollers\u003cbr\u003e- Supplied contact springs add center-conductor pickup for 3-rail systems\u003cbr\u003e- Gauge 16 mm (HO), minimum axle spacing 14 mm, roller diameter 6.5 mm\u003cbr\u003e- Rail-top to wheel-support distance approx. 7 to 8 mm\u003cbr\u003e- Each block measures 14 x 22.5 x 9 mm (L x W x H)","brand":"Black Forest® Hobby Supply Co","offers":[{"title":"Default Title","offer_id":67927016636691,"sku":"189-1800","price":112.79,"currency_code":"USD","in_stock":false}],"url":"https:\/\/www.scfoundry.shop\/products\/busch-1800-ho-scale-locomotive-roller-test-stand-3-blocks","provider":"S\u0026C Foundry","version":"1.0","type":"link"}