. Canadian forest industries July-December 1920. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. 74 CANADA LUMBERMAN AND WOODWORKER December 15, 1020 Ploughs Right Through "Iron Bark" Ball-bearing Equipped Resaw Stands Up to Work in Fine Shape, Says Filer of Southern Sawmill In spite of the constantly-growing use of bail bearings in wood- working machines, some niillmen still hesitate to trust them on heavy, hard service. The well-known anti-friction qualities, the dust-proof boxes, the saving in oil and power efl'ected—all this is admitte
. Canadian forest industries July-December 1920. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. 74 CANADA LUMBERMAN AND WOODWORKER December 15, 1020 Ploughs Right Through "Iron Bark" Ball-bearing Equipped Resaw Stands Up to Work in Fine Shape, Says Filer of Southern Sawmill In spite of the constantly-growing use of bail bearings in wood- working machines, some niillmen still hesitate to trust them on heavy, hard service. The well-known anti-friction qualities, the dust-proof boxes, the saving in oil and power efl'ected—all this is admitted—but the fear that something will go wrong later seems to dominate many. Ball bearing resaw at work minds. Possibly the reason for this feeling is that the claims for ball bearings seem too good to be true. Skeptics are inclined to wait for the other fellow to test out ma- chines fitted with ball bearings, and see what happens. Apparently that is the easiest course to follow, but when one takes into consider- ation that he is paying for extra power and oil and possibly several other items, such as babbitt, repairing and delays incident to repairs on bearings, etc., while continuing the use of babbitted bearings, b'- may find he has not ado])tcd the cheapest course by any means. The accompanying jjicture .shows a machine on which ball bear- ings have been given a pretty severe test, and the "testing" still con- tinues. It is a 54-in. band resaw which was installed in the Hammond Lumber Co.'s big planing mill, at San Pedro, Calif., in July, 1918— over two years ago. It has not only been in daily service since then, but has been used regularly on the night .shift, which was maintained for six month';, and on overtime runs three nights a week for several months. The carries 18 and 19-gauge -aw> that are 7 in. wide when new, and the work is not ".soft" by any Most of the stock resawcd is fir, in all sizes from 1-in. boards to timbers 1
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectforestsandforestry
