|
The Blomberg B is a "B" diesel locomotive truck. These trucks were the standard EMD four wheel truck from the FT up until the GP60. EMD introduced the truck in 1939. Unofficially it is named after Martin Blomberg, who joined the company the year before. The truck was derived from an earlier three axle truck (A1A) designed by Blomberg ''(described in , filed January 29, 1938, and approved February 6, 1940)'', and was used starting with the FT. ==Identification== Blomberg trucks can be identified by their prominent outside swing hangers, which afford a better ride during side-to-side movement. The outside placement has the advantage of widening its spring base from . Due to the swinging hanger suspension system these trucks are commonly referred to in the railroad business as "swing hanger trucks". The term "Blomberg" truck isn't used even in some railroad training literature that specifically describes truck types. A popular modification by railroads in later years was reducing the number of brake shoes from 8 to 4 by reconfiguring the double-clasp brake rigging, removing one brake shoe per wheel. This can give the Blomberg B a similar appearance of later Blomberg M trucks. Although possibly a few exceptions exist, where a customer has specifically requested so-called "plain" bearings, almost all Blomberg B and M trucks (freight), and all Blomberg A1A trucks (passenger) which preceded these, have almost always been equipped with roller bearings. Blomberg B trucks are occasionally seen on competitive locomotives, the General Electric Universal Series in particular, where the railroad has requested re-use of traded-in EMD trucks and possibly also EMD traction motors on new GE locomotives. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Blomberg B」の詳細全文を読む スポンサード リンク
|