Groove diameter

Groove Diameter of a rifled weapon is measured from the bottom of one groove to the bottom of that opposite or, in case an odd number of these are employed, calculated as equalizing the diam of the bore (See "Bore Diameter in Vol 2 of Encycl, p B248-R) plus twice the depth of one groove, since in this instance these are so distributed that no one ever directly faces another Ref Hayes (1938), 194... 

Groove diameter The diameter of the grooves in a multiple-strand sprocket. The maximum groove diameter is the largest groove diameter that will clear the roller link plates in the... 

Hub diameter The outside diameter of the hub extension of a sprocket. The maximum hub diameter is the same as the groove diameter. 

P BASE CHAIN PITCH W NOMINAL CHAIN WIDTH LPT = NOMINAL LINK PLATE THICKNESS MHD s MAXIMUM HUB AND GROOVE DIAMETER g = APPROX. 1/8 P... 

The apparatus consists of a tube T (Fig. 76) usually of total height about 75 cm. the upper portion of the tube has an internal diameter of about I cm., whilst the lower portion is blown out as shown into a bulb of about 100 ml. capacity. Near the top of T is the delivery-tube D of coarse-bored capillary, bent as shown. The tube T is suspended in an outer glass jacket J which contains the heating liquid this jacket is fitted around T by a split cork F which has a vertical groove cut or filed m the side to allow the subsequent expansion of the air in J. The open end of the side-arm D can be placed in a trough W containing water, end a tube C, calibrated in ml. from the top downwards, can be secured ts shown over the open end of D. 

Figure 7.5 Pits on a large-diameter austenitic stainless steel pipe. Note the grooves formed by leakage of pit contents down the pipe wall in the direction of gravity. (Pipe wall was vertical in service.)...

In another tack test, a steel ball of specified diameter is rolled down a grooved incline onto a conditioned surface area of pressure sensitive adhesive (ASTM D 3121, PSTC-6). The length of travel before it stops is the rolling ball tack (Fig. 2d) reported in millimeters. It is relatively inexpensive and simple to set up. Similar test variables to the probe tack test apply. 

In the same manner, grooves for sand-line sheaves shall be made for the rope size specified by the purchaser. The bottom of the groove shall have a radius R, Table 4-6, subtending an arc of 150°. The sides of the groove shall be tangent to the ends of the bottom arc. Total groove depth shall be a minimum of 1.75d and a maximum of 3d, and d is nominal rope diameter (see Figure 4-14, B). 

The inside diameter of socket and swivel-socket baskets should be in. larger than the nominal diameter of the wire rope inserted. Alloy or carbon steel, heat treated, will best serve for sheave grooves. Antifriction bearings are recommended for all rotating sheaves. 

Effective length The effective length is measured on a length-inspection machine. The machine consists of two parallel shafts on movable centers with a scale to accurately measure the center distance between shafts. Inspection pulleys of equal diameter and grooved in accordance with industry standards are mounted on these shafts. A belt is mounted on these pulleys and tensioned to a specified force. The belt is rotated through at least three complete revolutions to ensure that the tension is equalized around the belt and that the belt is properly seated in the grooves. 

Never reinstall damaged or worn pulleys on equipment it is important to always repair or replace them. Always select the proper pulley-groove gage and template for the pulley diameter as shown in Figure 58.3. Inspect the... 

Figure 22. Practical 2000-A anode. Features include 108 channels and/or grooves, YBD carbon impregnated with epoxy, electrolytic nickel plate on carbon, electrolytic copper plate on nickel, copper wool packing, and central copper conductor. The anode is 20 cm in diameter and 120 cm long. (Reproduced with permission from paper 933 presented at the May 1997 meeting of The Electrochemical Society in Montreal.)...

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