Select a Month
August, 2024 1 January, 2024 1 January, 2023 6 February, 2023 8 March, 2023 7 July, 2023 1 September, 2023 2 December, 2022 6 November, 2022 13 October, 2022 10 September, 2022 8 August, 2022 11 July, 2022 7 June, 2022 11 May, 2022 7 April, 2022 10 March, 2022 10 February, 2022 8 January, 2022 8 December, 2021 7 November, 2021 11 October, 2021 9 September, 2021 9 August, 2021 11 July, 2021 10 June, 2021 11 May, 2021 6 April, 2021 10 March, 2021 9 February, 2021 13 January, 2021 9 December, 2020 6 November, 2020 9 October, 2020 11 September, 2020 8 August, 2020 10 July, 2020 10 June, 2020 8 May, 2020 11 April, 2020 5 March, 2020 12 February, 2020 12 January, 2020 13 December, 2019 7 November, 2019 11 October, 2019 7 September, 2019 12 August, 2019 12 July, 2019 10 June, 2019 10 May, 2019 11 April, 2019 15 March, 2019 11 February, 2019 9 January, 2019 11 December, 2018 6 November, 2018 9 October, 2018 10 September, 2018 8 August, 2018 11 July, 2018 8 June, 2018 7 May, 2018 11 April, 2018 10 March, 2018 9 February, 2018 10 January, 2018 10 December, 2017 10 November, 2017 14 October, 2017 14 September, 2017 11 August, 2017 14 July, 2017 11 June, 2017 14 May, 2017 15 April, 2017 15 March, 2017 10 February, 2017 11 January, 2017 12 December, 2016 11 November, 2016 19 October, 2016 12 September, 2016 14 August, 2016 13 July, 2016 9 June, 2016 10 May, 2016 17 April, 2016 11 March, 2016 10 February, 2016 11 January, 2016 8 December, 2015 7 November, 2015 9 October, 2015 12 September, 2015 9 August, 2015 8 July, 2015 7 June, 2015 10 May, 2015 10 April, 2015 9 March, 2015 9 February, 2015 7 January, 2015 9 December, 2014 7 November, 2014 7 October, 2014 10 September, 2014 7 August, 2014 8 July, 2014 5 June, 2014 7 May, 2014 4 April, 2014 8 March, 2014 5 February, 2014 6 January, 2014 6 December, 2013 3 November, 2013 8 October, 2013 8 September, 2013 5 August, 2013 6 July, 2013 6 June, 2013 4 May, 2013 6 April, 2013 10 March, 2013 4 February, 2013 5 January, 2013 5 December, 2012 5 November, 2012 5 October, 2012 4 September, 2012 5 August, 2012 5 July, 2012 2 June, 2012 3 May, 2012 4 April, 2012 2 March, 2012 3 February, 2012 4 January, 2012 6 December, 2011 3 November, 2011 3 October, 2011 2 September, 2011 2 August, 2011 3 July, 2011 1 June, 2011 1 April, 2011 1 February, 2011 1 January, 2011 2 December, 2010 3 November, 2010 4 September, 2010 4 August, 2010 1 June, 2010 4 May, 2010 3 April, 2010 6 March, 2010 1 February, 2010 1 January, 2010 1 December, 2009 5 November, 2009 1 September, 2009 4 August, 2009 4 July, 2009 2 June, 2009 9 May, 2009 1 April, 2009 7 March, 2009 1Select a Category
literature
Article Brochure Catalogs Innovation Spotlight Success Stories Technical Articlesaltra-brands
Altra Industrial Motion Ameridrives Couplings Bauer Gear Motor Bibby Transmissions Boston Gear Delroyd Worm Gear Formsprag Clutch Guardian Couplings Huco Dynatork Inertia Dynamics Kilian Manufacturing Kollmorgen Lamiflex Couplings Marland Clutch Matrix International Nuttall Gear Portescap Stieber Clutch Stromag Svendborg Brakes TB Wood's Thomson Twiflex Ltd Warner Electric Warner Linear Wichita Clutchother
News Release Tradeshows Webinar Websiteproduct-platform
Belted Drives Couplings Electromagnetic Clutches-Brakes Engineered Bearing Assemblies Gearing Gear Motors Heavy Duty Clutches and Brakes Linear Products Overrunning ClutchesNuttall Gear Custom Designed Heavy Duty Gear Drives for Moveable Bridge
When replacing the Hamilton Avenue moveable bascule bridge over the Gowanus Canal in New York City, project engineers required a reliable, heavy-duty gear drive solution to function as the primary differential speed reducer and secondary reducers for the bridge drivetrains. There were many challenges associated with the complex skewed bascule bridge, all compounded by the fact that an eight-lane elevated expressway is located 30m over the bridge. Consisting of two single leaf, four-lane bascule bridges, the Hamilton Ave. bridge carries approximately 55,000 vehicles a day and opens around 900 times per year for marine traffic.
Nuttall engineers relied on their extensive application knowledge and experience to develop a custom gear drive solution that met the project specification requirements. The Nuttall enclosed parallel shaft helical gear drives feature welded steel housings for strength and durability. Units incorporate spiral bevel/helical gear combinations, custom shafts, special seals, and long-life bearings.
The two main drivetrains (one for each span), which included one primary differential reducer driving two secondary reducers, were shop-assembled, tested and delivered to the site as complete units. Power is provided by two electrical motors driving each differential (one of two operating at a time) which are coupled to the input shafts of the reducers. Torque of the reducer is equalized to two output shafts by internal differential gearing. Each shaft drives a secondary reducer. Auxiliary backup motors were also coupled to the reducers through a helical bevel right angle input.
