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Dimension Table of Optional Parts Applicable to BT Type ■Metal Scraper (MS) ●Use the metal scraper (MS standard) to remove welding sputters adhered to the guide shaft, stuck grease, etc. ●The metal scraper causes no damages to the guide shaft, since it is a coil scraper made of phosphor bronze. ●The metal scraper may also be used with the SPB bushings. ■Stopper (ST) ●The stopper (ST standard) is a part used for positioning by butting the end of the sleeve body of the shifter. It is quenched and its accuracy will not deteriorate. Metal scraper (MS) Stopper (ST) L1 T±0.05 M φd1 φD2 φD1 φD Nominal diameter φd Dust seal (DS) Stopper (optional) No symbol: None SW: Both ends SF: Flange end only SS: Sleeve end only Metal scraper (MS) No symbol: None MS: Both ends BBT 20 - 100 - MS - SW Example: When I.D. is 20 mm and length is 100 mm Measurement Table/Product Identification for Ordering MS 20 ■Metal Scraper (MS) ■Stopper ■When Using Alone ■When Using Optional Part for Product Example: When I.D. is 20 mm φd1 25 30 36 46 56 L1 4.9 4.9 3.9 5.3 5.3 φD 28 33 40 50 62 φd 20 25 30 40 50 φD1 43.5 53.5 64.5 79.5 94.5 Metal scraper (MS)※ Stopper (ST) φD2 Applicable guide 35 42 52 65 78 T 79 10 13 15 BBT20 BBT25 BBT30 BBT40 BBT50 M 2-M4 2-M5 2-M6 2-M8 2-M8 MS20 MS25 MS30 MS40 MS50 Parts No. ST20 ST25 ST30 ST40 ST50 Parts No. Parts No. Parts No. Example: When I.D. ST 20 is 20 mm Parts No. Dust seal Metal scraper Stopper ※Press-fit hole tolerance should be φD Js7 and applicable shaft diameter tolerance should be φde7 to h7, if the metal scraper is used alone. Oiles metal with metal scraper assembled (        ) Specify by Specify by Specify by 322 Selection Guide Product Information Plastic Bearing Multi-layer Bearing Metallic Bearing Air Bearings Technical Guide Units Information Corporate Profi le