{"product_id":"boston-gear-r137bm1-right-angle-spiral-bevel-gearbox","title":"Boston Gear R137BM1 Right Angle Spiral Bevel Gearbox","description":"\u003cdiv\u003e\u003cp\u003eBoston Gear R137BM1 is a right-angle spiral bevel gearbox from the R Series designed to change shaft orientation by 90 degrees while preserving a 1:1 gear ratio. The unit uses spiral bevel gears with solid shaft inputs and outputs, featuring 0.7500 inch input and 0.7500 inch output shafts to accept standard 3\/4 inch bore components, and it is rated at 8.8 horsepower with a maximum output speed of 1,750 rpm and a torque rating of 318 in-lbs. The R137BM1 delivers a right-output-direction configuration, enabling straightforward installation in machinery where output orientation matters, and it is a compact 90-degree drive unit commonly used to transmit power between intersecting shafts with a spiral bevel gear type that emphasizes smooth, efficient torque transfer in tight spaces. Being part of the Boston Gear R Series, the R137BM1 is designed for straightforward mounting and alignment with compatible accessories and other gearing components from the same line.\u003c\/p\u003e\u003c\/div\u003e","brand":"Boston","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51677208248622,"sku":null,"price":820.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_40365302-451f-488d-a91d-fca208f8661a.jpg?v=1769559398","url":"https:\/\/plgautomation.com\/products\/boston-gear-r137bm1-right-angle-spiral-bevel-gearbox","provider":"PLG Automation ","version":"1.0","type":"link"}