. Canadian machinery and metalworking (January-June 1919). ing is the lubricating chamber, which OF THE TWO RIGHT HANDW BEARINGS FAIRBANKS-MORSE MOTOR EQUIPPED WITH BALLBEARINGS. by the employment of ball bearings. Where a consideration of aisle room,floor space, machine arrangement, etcis necessary, a ball-bearing motor goesa long way towards solving the problemas shown in the following table: PLAIN DIRECT-CURRENT MOTORS. Motor L ength Over All _ Sleeve- Bearing Ball-bearing Reduction Size Motor. Motor. n Length. of Motor. Inches. Inches. Per Cent. 5 26% 23 12 G 26% -P, 7 31 11 16 26 18 8
. Canadian machinery and metalworking (January-June 1919). ing is the lubricating chamber, which OF THE TWO RIGHT HANDW BEARINGS FAIRBANKS-MORSE MOTOR EQUIPPED WITH BALLBEARINGS. by the employment of ball bearings. Where a consideration of aisle room,floor space, machine arrangement, etcis necessary, a ball-bearing motor goesa long way towards solving the problemas shown in the following table: PLAIN DIRECT-CURRENT MOTORS. Motor L ength Over All _ Sleeve- Bearing Ball-bearing Reduction Size Motor. Motor. n Length. of Motor. Inches. Inches. Per Cent. 5 26% 23 12 G 26% -P, 7 31 11 16 26 18 8 35V2 29% 9 38% 32% in 41 a 16 341/, 13 45% 37 7 16 12 4a % 38% INTERPOLE Motor Length Over All Frame „ 1 2 3 5 7%10152025301050 Ring-oilerBearing Motor. Inches. 18% 20 15 16 23 7 16 25% 28% 33 37 43% 15 L. 45% 51% 53 3 57. Bal 16 -bearing Reduction Motor. in Length. Inches. Per Cent. 16% 18 14 19 7 16 17 19% 22% 25 9/16 28% 33i/4 33 3 16 37% 38 1/16 26 41% 12 13 16 25. i quired for plain-bearing motors, ballbearings require no oiling devices otherthan the ball bearing itself. Ball bear-ings are in themselves positive self-lubricators. Instead of necessitating fre-quent inspection of the bearings, re-newal of the lubricant and possibly oc-casional rebabbitting, ball-bearing mo-tors require no attention other thanperiodic lubrication—the length of timebetween inspections being from one weekto six months, depending upon the ser-vice. Ball-bearing motors are clean. Theball bearings are encased within bearingheads with sealing grooves on each sideof the bearing, preventing the leakageof lubricant. With this protection, drip-ping or leaking of oil is eliminated andthere is no danger of goods becomingsoiled or contaminated with oil from thissource. Gear-Drive Motors Where gear drive is used, ball bearingson electric motors are of particuar ad-vantage. In order that gears shall runsmoothly and qui
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmachinery, bookyear19
