{"id":15939,"date":"2025-02-24T14:46:29","date_gmt":"2025-02-24T19:46:29","guid":{"rendered":"https:\/\/allnationline.com\/WP\/?post_type=product&#038;p=15939"},"modified":"2025-10-23T15:55:01","modified_gmt":"2025-10-23T19:55:01","slug":"aar-type-a-helix-gear-tower-drive-with-universal-joint-assembled-pn602","status":"publish","type":"product","link":"https:\/\/allnationline.com\/WP\/?product=aar-type-a-helix-gear-tower-drive-with-universal-joint-assembled-pn602","title":{"rendered":"AAR Type A Helix Gear Tower Drive With Universal Joint Assembled PN#602"},"content":{"rendered":"<p><span style=\"font-size: 18pt;\">For Sale: AAR Type A Helix Gear Tower Drive With Universal Joint Assembled PN#602<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">The power for the All Nation NW2 locomotive has been extensively re-engineered on the basis of the original mechanical drawings using the new technologies of the day. We created a better looking and functional AAR Type A truck with ball bearings and working suspension springs in the side frames. The tower drive now comes in several different heights to align with the motor shafts with less resistance on universal joints. The All Nation NW2 1000 HP still requires the lower standard tower drive in order for accommodating\u00a0 internal body clearances. However, the intention is to be able to utilize the various height transmissions in other engine models where adequate clearances allow.<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">One of the unique features not found in other models is the ease of maintenance. The entire mechanism can be taken apart and easily re-assembled for future upkeep. Replacement parts are available. Our tower transmissions are also adaptable to other engine models.<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">You will also note that we have the same power truck transmission drive as a chain drive with our sprockets in the AAR Type A truck.<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">The tower drive is chain driven on our sprockets using our special Poly Carbonate ABS filament blend. The sprockets should not crack or fail like the older Delrin or Nylon seen in the past and in other brands of engine power implementations. The gear box sides #4038 and #4039 are no longer steel. Rather we print and stamp them out of Poly Carbonate making for a quieter mechanism.<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">To give you a better idea on how I have upgraded my NW2 engines, please view the following video:<\/span><\/p>\n<p><span><\/span><\/p>\n<div style=\"width: 750px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-15939-1\" width=\"750\" height=\"422\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/allnationline.com\/WP\/wp-content\/uploads\/2024\/05\/NW2%20Switcher%20Power.mp4?_=1\" \/><a href=\"https:\/\/allnationline.com\/WP\/wp-content\/uploads\/2024\/05\/NW2%20Switcher%20Power.mp4\">https:\/\/allnationline.com\/WP\/wp-content\/uploads\/2024\/05\/NW2%20Switcher%20Power.mp4<\/a><\/video><\/div>\n<p><span style=\"font-size: 18pt;\">Note, in the video illustrating the taller towers, the mechanism under test will not fit in the All Nation NW2 body due to internal clearances requiring the short tower transmission. <\/span><\/p>\n<p><span style=\"font-size: 18pt;\">Included for your reference are several close up photos showing in detail the tower drive with the small gear box using the 1 piece 3D printed shaft coupler\/sprocket on the end of the tower worm shaft.<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">We can also take custom orders for retrofitting our transmissions in longer wheel base locomotive trucks. This transmission configuration also fits perfectly in our F3\/F7 EMD Blomberg trucks.<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">This assembled kit is available in kit form as well. The modeler should have some of the right tools in the model shop and skills to do the assembly work as this is a hand crafted piece of work.<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">Dual power trucks can be used in the NW2 Switcher engine.\u00a0 In my case the one tower transmission in the front end of the engine is adequate.<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">We should note that one side of the wheel sets are insulated with a bushing however given the use of our gear covers we have implemented all wheel electrical pickup for 2 rail DC operations. The pickups can be removed if one were to go with Power On Board i.e., battery operated models, also known by modelers as Dead Rail since power is no longer supplied to the rails if running off of batteries.<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">The following is a parts list break down for the 3 kits that make up the assembly of this power transmission truck consisting of approximately 120 parts in total.<\/span><\/p>\n<p><span style=\"font-size: 18pt;\"><strong>Parts List:<\/strong><\/span><\/p>\n<p><span style=\"font-size: 18pt;\"><strong>AAR Truck Type A Parts List<\/strong><\/span><\/p>\n<p><span style=\"color: #808080; font-size: 18pt;\">3-3 Brass Universal Joint <\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 Frames with coil spring assemblies<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 Sway Bar End Frames<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">4 Coil Springs<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 Leaf Spring Assemblies<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 Bolster<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 Bolster Bushings<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">4 Side Frames, considered hollow when assembled<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 4-40 x \u00bc\u201d Fillister Head Bolster Screws<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">4 Clasp Air Brake\/Adjusters<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 Right Side Journal<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 Left Side Journals<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 Air Brake Cylinders <\/span><\/p>\n<p><span style=\"font-size: 18pt;\">4 Axle Ball Bearings<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">4 0-80 x 3\/16\u201d Pan Head Philips screws for Air cylinder mounts<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">8 00-90 x 3\/16\u201d Slack Adjuster mount screws<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 Air Cylinder Brake Rod<\/span><\/p>\n<p><span style=\"font-size: 18pt;\"><strong>The breakdown of parts for the small gear unit follows:<\/strong><\/span><\/p>\n<p><span style=\"font-size: 18pt;\">Parts List PN#9027 (aka 4062) Kit Constant Torque Transmission<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 Drive Shaft PN#4045 1-3\/4\u2033 Long<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 Spacer Bushing For Drive Shafts PN#4040<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 Spur Gear i.e. Worm Gear for Axle PN#4052<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 Brass Axle Bushings PN#4073<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 Axle PN#1524<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">4 3-48 x 5\/32\u2033 Filister Head #C1301<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">4 Thrust Washers aka Shim Rings<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 40\u2033 wheels PN#2146 and PN#2147 (note may be substituted for 33\u2033 or 36\u2033 wheels) depending on your application<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 Wheel Insulators<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">4 Lock Washers #C2034 or C2031<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 Worm #4051<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 Gear housing Side Panels PN#4039<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 Bottom Spur Gear Pan with 2 Retainers &amp; 4 Screws 0-80 x 3\/16 Screws 3D Print PN#253AN<\/span><\/p>\n<p><span style=\"font-size: 18pt;\"><strong>The breakdown of parts for this tower gear unit follows:<\/strong><\/span><\/p>\n<p><span style=\"font-size: 18pt;\">Parts List PN#9056Chain (aka 4056) Constant Torque Transmission Blueprint Section A<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">#4056 Blueprint Section A<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 Drive Shaft PN#4045 1-1\/4\u2033 Long plus pin<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">4 Spacer Bushings For Drive Shafts PN#4040<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 Spur Gear i.e. Worm Gear for Axle PN#4052<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 Brass Axle Bushings PN#4073<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 Axle PN#1524<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">8 3-48 x 5\/32\u2033 Filister Head #C1301<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">8 Lock Washers #C2034 or C2031<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">5 Thrust Washers aka Shim Rings<br \/>\n<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 40\u2033 wheels PN#2146 and PN#2147 (note may be substituted for 33\u2033 or 36\u2033 wheels)<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 Wheel Insulators (1 is a spare)<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 Worm #4051 (Worm may already be pressed onto shaft #4045)<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">2 Gear housing Side Panels PN#4039<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 Bottom Spur Gear Pan with 2 Retainers &amp; 4 Screws 0-80 x 3\/16 Screws 3D Print PN#253AN<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 Upper Drive Shaft with ball #4042<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 Lower Drive Shaft Coupler #4041<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 PC\/ABS Sprocket 16 teeth Upper Drive Shaft #S123 to be mounted on #4042<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 PC\/ABS Sprocket 16 teeth Lower Drive Shaft #S154 to be mounted on #4041<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 Chain 4\u201d long<\/span><\/p>\n<p><span style=\"font-size: 18pt;\">1 Upper Drive Shaft C Clip #C2036<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>For Sale: AAR Type A Helix Gear Tower Drive With Universal Joint Assembled PN#602 The power for the All Nation NW2 locomotive has been extensively re-engineered on the basis of the original mechanical drawings using the new technologies of the day. We created a better looking and functional AAR Type [&hellip;]<\/p>\n","protected":false},"featured_media":15945,"template":"","meta":[],"product_brand":[],"product_cat":[247],"product_tag":[],"class_list":{"0":"post-15939","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-power-transmissions","8":"first","9":"instock","10":"taxable","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/allnationline.com\/WP\/index.php?rest_route=\/wp\/v2\/product\/15939","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/allnationline.com\/WP\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/allnationline.com\/WP\/index.php?rest_route=\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/allnationline.com\/WP\/index.php?rest_route=\/wp\/v2\/media\/15945"}],"wp:attachment":[{"href":"https:\/\/allnationline.com\/WP\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=15939"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/allnationline.com\/WP\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=15939"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/allnationline.com\/WP\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=15939"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/allnationline.com\/WP\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=15939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}