Precision Lock Nut - BF Series (0.002mm) Flank Locking

BF Precision Locknut - Flank Locking The locknut setscrews intersect at a 30° angle which drives the locking brass to stick perfectly on the shaft’s thread flank. No thrust washer or keyway needed. Easy to assemble and disassemble. Can be re-used if handled properly. The connecting face and thread area are all produced by high precision grinding process. ‧Material：JIS SCM440/DIN42CrMo4/AISI 414 ‧Hardness：HRC 28-32 ‧Precision：ISO 4H ‧Thread run-out with axial : 0.002mm   NIKKI Product Spec TYPE & Pitch Dimensions Axial Load Static kN Loosening Torque kg-cm Screw Screw Torque D h g t d DIN MAX kg-cm BF15 x1.0P 30 25 14 3X4 2 60 250 M5 48 BF17 x 1.0P 32 27 16 70 300 BF20X1.0P 38 33 90 400 M6 80 BF20X1.5P 90 400 BF25X1.5P 18 3X5 120 800 BF30X1.5P 45 40 145 1400 BF35 x 1.5P 52 47 170 1800 M8 190 BF40 x 1.5P 58 52 20 3X6 2.5 190 2200 BF45 x 1.5P 65 59 220 2500 BF50 x 1.5P 70 64 250 2700 BF55 x 2.0P 75 68 22 3X7 3 310 2900 BF60 x 2.0P 80 73 350 3100 BF65 x 2.0P 85 78 400 3200 BF70 x 2.0P 92 84 24 3X8 3.5 450 3400 BF75 x 2.0P 98 90 480 3600 BF80 x 2.0P 105 96 580 3800 BF85 x 2.0P 110 102 620 4000 BF90 x 2.0P 120 108 26 6X10 4 680 4500 BF95 x 2.0P 125 113 720 4750 BF100 x 2.0P 130 118 740 5000 BF105 x 2.0P 140 125 28 770 5250 M10 360 BF110 x 2.0P 145 132 800 5500 BF115 x 2.0P 150 137 830 5750 BF120 x 2.0P 155 142 30 6X12 5 860 6000 BF125 x 2.0P 160 147 890 6250 BF130 x 2.0P 165 152 920 6500 BF135 x 2.0P 175 160 32 950 6750 BF140 x 2.0P 180 165 980 7000 BF145 x 2.0P 190 175 1010 7250 B150 x 2.0P 195 180 1050 7500 BF155 x3.0P 200 34 6X14 6 1100 7750 BF160 x 3.0P 210 190 1200 8000 BF165 x 3.0P 1230 8250 BF170 x 3.0P 220 200 1260 8500 BF180 x 3.0P 230 205 36 6X16 7 1370 9000 M12 600 BF190 x 3.0P 240 215 1430 9500 BF200 x 3.0P 250 225 38 1500 9900 Remark ‧When ordering above products, please refer to the TYPE & Pitch. ‧If left hand thread required, please notify “L” after the TYPE & Pitch. For example:BF25X1.5P-L ‧If inch thread required, please refer to the TYPE & Pitch. For example:BF25-U20 ‧To prevent the locknuts are in short supply, please send your order in advance.