Ram Bushing for CSP-1 Press
	Quantity in Basket: None Catalog No.: CSP-1RB Price: $10.00 Shipping Weight: 0.25 pounds
	Quantity:
This is for ONE of the two solid bushings which guide and support the press ram. There are TWO used in the press. The price is for ONE bushing. The photo shows both bushings. You can order ONE if you wish to only replace a single damaged bushing. If you want to completely rebuild the press, order TWO (2). We list a single bushing so you do not have to buy a set unless you need both of them. Sometimes this is confusing because there are two identical bushings in the press at the top and bottom of the ram hole. Ordering (1) item here gets you (1) bushing, not a set. If you need both, please order (2) items, which is a full set. We do not recommend purchasing these unless you feel competent to remove the old ones and install the new ones, which will require honing the bushing bore after installation by guided press fit. Normally it is better to send the press to Corbin and let us replace the bearings, if necessary. At the same time, we can check and repair or replace any other components that are worn or damaged. A bushing removal and installation tool should be used. This consists of a rod which fits into the ram hole (same size as the ram itself) that has been turned down on one end to fit inside the bushing. The shoulder between the two diameters presses on the end of the bushing, and generally a hydraulic shop press is used to apply slow gentle force to move the bushing. The bushing must be a press fit so it will not work loose. Pressing the bushing into the bore of the press frame tends to shrink the ID of the bushing slightly, so that it is usually necessary to hone the bore to fit the ram properly. By the time a person fabricates the necessary tooling, such as the bushing punch to properly press-fit the new bushing, and then purchases the necessary bore honing equipment and tooling to adjust the bore size precisely for the ram diameter, the cost of shipping the press and having it repaired by the manufacturer might be seen as a much better alternative! On the other hand, if you are located in a country where return shipping might be costly and perhaps risky, and you have access to precision bore honing equipment and can build a bearing push tool (punch) on a lathe, then having the correct parts available and doing the work yourself may be a valid option. Note: The terms "bearing" and "bushing" can both refer to a friction reducing insert between moving parts. "Bearings" can be either solid or having rolling components, such as a ball bearing or a roller bearing. The solid bearing is a bushing. But the term bushing can also be used to indicate an adapter, the purpose of which is to fill space between two different diameters of items that are to be fitted together, either by press fit or by screw threads. All bearings are not bushings, and all bushings are not bearings. But in the realm of bearings, there is a sub-category (solid) which are bushings. And in the realm of bushings, some are solid bearings. And of course there are other uses for the word "bearing", such as a compass direction or a path to a goal, or the general term for supporting force as in a "load-bearing beam". Sometimes the steel roller pins or balls used inside roller or ball bearings are informally refered to as "bearings" when they are actually just a component of the bearing. In that regard, a ball bearing is the entire mechanism, and a bearing ball is one of the little round parts inside it. One bearing (or bushing) is press fit into the top of the ram guide hole. The other is press fit into the the bottom end of the thick-walled cylinder through which the ram moves. The bearings are a snug press fit to the press frame, and can be secured using an anaerobic adhesive such as Loc-Tite to help insure that the bearing will not move. The bearings are pushed into position using a snugly fitted guide punch with a shoulder having almost the same thickness as the bushing walls. When pressed into the frame, the bushing will be compressed slightly, making the ID smaller. The bore will need to be honed to make it both concentric to the ram and to allow a smooth sliding fit. A small engine cylinder hone may be utilized for this job if the operator is skilled and familiar with the operation. Both bearings need to be exactly concentric with a smooth sliding fit to the press ram. Generally you will want to purchase two bushings, if the damage is due to long and hard use. In fact, if the ram bushing has worn to the point where it needs replacement, it is highly likely that the toggle pivot pin bushing is also worn and should be replaced. This would be the oillite bearing mounted in the hole through the bottom end of the ram, through which the ram to toggle link pin is inserted. The ram to toggle link pin is the one moved into different toggle arm positions to change the stroke length. If the bushing is being replaced due to accidental damage, then perhaps all the other components will be fine. Just replacing the single damaged bushing is fine so long as that new bushing is fitted and honed to the ram diameter for a good sliding fit without tight spots or binding anywhere in the travel. If in doubt as to you capability of doing this, then it would be better to send the press to Corbin for evaluation and repair. We don't want to give the impression that anyone can replace these bushings, because it does take some tooling and experience to do it properly.

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