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*LINEAR　BEARING *MINI TYPE BEARING *SUPER LINEAR BEARING *FLANGED LINEAR BEARING *LINEAR CASE UNITS *SHAFT SUPPORTS *SHAFT *SUPPORT RAIL UNIT *BALL SCREW *LINEAR MOTION GUIDE BALL SCREW     SF TYPE DF TYPE BF TYPE BK TYPE     BK TYPE Park No. Park Name Qty. 1 Housing 1 2 Bearing 2 3 Holding Lid 1 4 Collear 2 5 Seal 2 6 Lock Nut 1 7 Hexagon socket-hesd Setscrew(with set piece) 1 Model No. Shaft diameter d1 L L1 L2 L3 B H B h B1 H1 E P C1 C2 d2 X Y Z M T ±0.02 ±0.02 BK12 12 25 6 29 5 60 43 30 25 35 32.5 18 46 13 6 5.5 6.6 11 1.5 M3 19 BK15 15 27 6 32 6 70 48 35 28 40 38 18 54 15 6 5.5 6.6 11 6.5 M3 22 BK17 17 35 9 44 7 86 64 43 39 50 55 28 68 19 8 6.6 9 14 8.5 M4 24 BK20    20 35 8 43 8 88 60 44 34 52 50 22 70 19 8 6.6 9 14 8.5 M4 30 BK25 25 42 12 54 9 106 80 53 48 64 70 33 85 22 10 9 11 17.5 11 M5 35 BK30 30 45 14 61 9 128 89 64 51 76 78 33 102 23 11 11 14 20 13 M6 40 Bk35  35 50 14 67 12 140 86 70 52 88 79 35 114 26 12 11 14 20 13 M8 50 MODEL NUBER BK TYPE  Ball screw outside diameter D D1 B E F M S Cham er Redius H1 KEYWAY DIMENSION H2 MODELNUBER BK TYPE C1 C2 C2 R1 R2MAX N P R P BK12 ￠14, ￠15, ￠16, ￠18 12 10 39 15 M12X4 14 0.5 0.5 0.5 0.3 0.3 3X1.8 12 9.5 12 BK12 BK15 ￠18, ￠20 15 12 40 20 M15X1 12 0.5 0.5 0.5 0.3 0.3 4X2.5 16 11.3 16 BK15 BK17 ￠20, ￠25 17 15 53 23 M17X1 17 0.5 0.5 0.5 0.3 0.3 5X3.0 21 14.3 21 BK17 BK20 ￠25, ￠28 20 16 53 25 M20X1 15 0.5 0.5 0.5 0.3 0.3 5X3.0 21 16 21 BK20 BK25 ￠32, ￠36 25 20 65 30 M25X1.5 18 0.5 0.7 1 0.5 0.5 6X3.5 25 19 25 BK25 BK30 ￠36, ￠40 30 25 72 38 M30X1.5 25 0.5 0.7 1 0.5 0.5 8X4.0 32 23.5 32 BK30 Bk35 ￠40, ￠45, ￠50 35 30 83 45 M35X1.5 28 0.5 1 1 0.5 0.5 8X4.0 40 28.5 40 Bk35

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