| 单词 | journal bearing |
| 例句 | The steel castings at the center of the investigation are called journal bearing housings, which allow the movement of the wheels to be independent of the axle. New CTA train cars had dangerous flaw 2012-03-08T06:01:00Z After the crisis erupted over the journal bearing housings, Bombardier officials attempted to force the CTA to accept an unsatisfactory solution, according to sources. New CTA train cars had dangerous flaw 2012-03-08T06:01:00Z Symbol Al. ÷ bronze or gold, a pale goldÐcolored alloy of aluminium and copper, used for journal bearings, etc. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z A journal bearing, so called because frequently made of brass. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z It consists of a base or bed, affording journal bearing and support to a horizontal work table, rotated by devices carried upon the bed. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The friction varies directly as the area of the journal bearing. Friction, Lubrication and the Lubricants in Horology 2011-01-20T03:00:07.073Z Here is an abstract from a notable journal bearing date, Wednesday, October 13th, 1708, and entitled The British Apollo; or, Curious Amusements for the Ingenious, by a Society of Gentlemen. Henry Esmond; The English Humourists; The Four Georges Babbitt metal, used for journal bearings in machinery, contains the same metals in a different proportion together with a small percentage of copper. An Elementary Study of Chemistry The box rests upon the journal bearing and key, which intervene between the inner top of the box and the axle. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z It consists of a bar having journal bearing in castings which bolt on to the two ends of the cylinder in place of the cylinder covers. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z This mandrel is held in position by means of the posts of the frame which carry the split journal bearings. Carpentry for Boys In a Simple Language, Including Chapters on Drawing, Laying Out Work, Designing and Architecture With 250 Original Illustrations C is a short screw which provides journal bearing for the screw, A, by a plain hole. Scientific American, Volume XXXVI., No. 8, February 24, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. Purdy, Poughkeepsie, N. Y.—This invention relates to a new and useful compound for lubricating railroad car axle journals, and other journal bearings. Scientific American, Volume XXIV., No. 12, March 18, 1871 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. The knee b affords journal bearing to a spindle which has a pinion gearing with the rack c, and at the end of this spindle is a ratchet-wheel d operated by the lever shown. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z At d is a hand wheel whose screw has journal bearing in a lug from the table, while the screw threads into a nut provided in the carriage. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Spindle n is provided with the gear-wheel o, which drives gear p, which is threaded upon the feed screw f and has journal bearing at q. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The sleeve d has journal bearing at g and at h. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z It consists of a ring c inserted between the cross slide d and the handle hub b having journal bearing on and rotating with the latter. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The live spindle consists of two parts, an outer sleeve a a, having journal bearing in the head, and an inner hollow spindle b b, threaded at its front end e, to receive the chucks. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z In this case take out the driving box and fit in its place a block of wood affording journal bearing for the axle. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z At each end of this screw it gears into a worm-wheel having journal bearing on the end of the slide rest feed screw as shown. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The table has journal bearing in the knee, and is fed upwards by the small lever shown. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z In the case of the vertical spindle the boring bar may extend down and have journal bearing in a block, or bearing secured to the base plate i. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The spindle is threaded at s and is fed by the hand wheel f, which is threaded upon the screw s and has journal bearing in the cap c. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z But under equal conditions the larger the diameter of the idle wheel the less the power required to drive it, because the less its friction on its journal bearing. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The height of the tool in the holder is adjusted by the screw s, which has journal bearing in the holder, and threads to the end edge of the tool. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The stud carrying g has journal bearing at f, and carries a pinion whose pitch circle is at h and which gears with the rack. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The work-holding frame or vice is supported, for circular surfaces, by being pivoted to the base at o, o, and by the gibbed head d, which has journal bearing at e. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z It consists of a head fixed upon a cylindrical column and affording journal bearing to the drill-driving spindle, which is driven by belt. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Boring Double Tapers.—To prevent end play in journal bearings where it is essential to do so, the form of journal shown in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z For use in confined places where but little handle-motion is obtainable, the ratchet wrench is employed, consisting of a lever affording journal bearing to a socket that fits the head of the bolt. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z At i is a bracket fast upon the apron g and affording journal bearing to j, which is a bevel pinion having a hub which has journal bearing in the bracket i. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z It is fast to the notched wheel b, and is operated by it in the usual way. c is a short screw which provides journal bearing for the screw a by a plain hole. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The main spindle at the front end works in a journal box c, that is cylindrical to fit the headstock, but double coned within to afford journal bearing to the spindle a. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z At the two ends of the frame the micrometer screws are afforded journal bearings. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The journal bearings for spindle a are constructed as described for a in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z To enable a delicate adjustment of this angle, a screw a having journal bearing in a lug on c is threaded through a piece carried in projection on the end of a. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The ring revolves with the work and has journal bearing in the stand, the enlarged diameter c preventing end motion. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The frame affords journal bearing to a ring a, having four projections b, to which are a close but easy sliding fit, the steadying jaws c. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z |
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