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kcots ncots ncots ncots ncots nkcots ncots ncots ncots ncots nkSGCZGSGFZGkSSGBZSSGHZkSGSFGSGBFGkSSGBLSSGBTkBBSWPkMMBSHMMBJHkSSGBBWSSGBBSSSGBBHkSSGBBLSSGBBF–5μm– Copper Alloy・Oil-free Type–5μm– Copper Alloy・Oil Type–5μm– Oil Type–5μm– Oil Type（CAC304 copper alloy）snP eduG reppirtSsgnhsuB・IIIIIIIIII△△○××△△○△○○iii※（　）The data in the brackets are hardness under normal standard.Compared with existing stripper guide pins, it is anti-sintered and can be used for high-speed stroke and heavy load. With the features of low friction coefficient and high heat-resistance of hard chrome plating, it can be used for high-speed rotary molds to improve the production efficiency. Besides, it can also prevent sintering caused by complicated operation or bias load. Moreover, the dimensions and tolerances of hard chrome plating stripper guide pins are the same as existing ones, and can be interchanged when sintering occurred.1.2.3.With the features of high hardness and good wearability. Because lubricity is not embedded, it is necessary to lay grease or lubricant periodically, in order to preserve oil film.Compared with SUJ2, its wearability is lower, but anti-sintering is superior. However, abrasion will occur rapidly when surface pressure exceeds the allowable value.Like SUJ2, lubricity is not embedded, too. Periodically laying of grease or lubricant is necessary.The oil film between bushing and pin is formed by MoS2 （Molybdenum disulfide）, in order to improve the anti-sintering. Although it is oil-free, the life-span can be greatly improved when grease or lubricant is applied. The wearability is a bit lower, and sintering will occur rapidly when surface pressure exceeds the allowable value.Compared with MoS2 （Molybdenum disulfide）, the performance of FC250＋MoS2 is the same. So, its wearability is the same as FC250. But the anti-sintering is better than FC250. Although anti-sintering will not occur when surface pressure exceeds the allowable value, abrasion will occur rapidly.RemarksFeatures of hard chrome plating900HVSurface hardness400℃Allowable temperaturePlating thickness2～3μmFriction coefficient※1※1　Friction coefficient between steel and chrome plating　　 Friction coefficient of steel is 0.20SSGBASSGBHP.998SSGBBP.1000P.998P.1000P.998P.1000P.999P.999P.1001P.1001Ball Bearing Cage Integrated TypeStripper Guide BushingsStripper Guide BushingsStripper Guide BushingsStripper Guide BushingsBall Bearing Cage Integrated TypeStripper Guide BushingsStripper Guide BushingsFor Ball Bearing CageStripper Guide Bushings–5μm– Oil-free TypeBall Bearing CagesStripper Guide BushingsSprings for Ball Bearing CageStripper guide pins　hard chrome plating type　 P.992Comparison of stripper guide bushingsType of material（SUJ2 High-carbon chrome bearing steel）58HRC or above○HardnessWearabilityAnti-sinteringOil-freeSUJ2CAC304200HB or above（240HB）※FC250＋MoS2（alloy cast iron＋molybdenum disulfide）FC250 part241HB or less（200HB）※CAC304＋MoS2（copper alloy＋molybdenum disulfide）CAC304 part200HB or above（240HB）※Notes for operationFor oil-free type, MoS2 is ring-like embedded by 3mm spacing and 1.5mm width in the inner surface of the sliding part. If the stroke is less than 1.5mm, oil film will not be completely formed on the guide pin and sintering will occur.Because MoS2 is saturated with lubricant, please do not degrease the inner side of guide bushings. During the initial phase of operation, it is recommended to lay grease or lubricating oil on, in order to form the oil film and to prevent abrasion caused by intensive operation.For precision guide pins, when alteration DKC is applied, the clearance between guide pin and guide bushing will change. In this case, oil-free type is recommended, because the clearance of oil type is small, and insufficient lubrication may cause adherence or sintering.0.16981