2246-25-B6-6-AL

GN 2246 Beam Couplings Aluminum / Stainless Steel with Clamping Hub Inch | Metric 2 Bore code B Without keyway Bellows couplings with metric-metric bore 1 Dimensions in: millimeters - inches 3 d1 d 2 - d 3 H8 12  0.47 4-4 4-5 5-5 - - - 16  0.63 5-5 5-6 6-6 - - - 20  0.79 5-5 5-6 5-8 6-6 6-8  8-8 25  0.98 6-6 6-8  6-10 8-8 8-10 10-10 32  1.26 10-10 10-12 12-12 - - - Bore (mm-mm) Recommended shaft tolerance h7 Bellows couplings with metric-inch bore 1 2 Dimensions in: millimeters - inches 3 d1 d 2 - d 3 H8 20  0.79  5-1/4  6-1/4 8-1/4 - - 25  0.98  6-1/4  8-1/4 8-3/8 10-1/4 10-3/8 32  1.26 10-3/8 12-3/8 - - - Bore (mm-in) Recommended shaft tolerance h7 d1 d4 l1 l2 l3 l4 Tightening torque of the screw in Nm ≈ 12  0.47 M2 18.5  0.73  5  0.20 2.5 0.10  4  0.16 0.5 16  0.63 M 2.5 23  0.91  6.5  0.26 3.25 0.13  5  0.20 1 20  0.79 M 2.5 26  1.02  7.5  0.30 3.75 0.15  6.5  0.26 1 25  0.98 M3 31  1.22  8.5  0.33 4.25 0.17  9  0.35 1.5 32  1.26 M4 41  1.61 12  0.47 6 0.24 11  0.43 2.5 Thread | Recommended shaft insertion depth WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov www.jwwinco.com | phone: 1-800-877-8351 GN 2246 Beam Couplings continued Dimensions in: millimeters - inches Aluminum d1 12  0.47 16  0.63 20  0.79 25  0.98 32  1.26 Stainless Steel d1 12  0.47 16  0.63 20  0.79 25  0.98 32  1.26 Rated torque in Nm Max. speed (min⁻ ¹) Moment of inertia in kgm² Static torsional stiffness in Nm/rad  0.4 52,000 7.8 x 10⁻⁸  45  0.5 39,000 3.4 x 10⁻⁷  80  1 31,000 9.1 x 10⁻⁷ 170  2 25,000 2.6 x 10⁻⁶ 380  4 19,000 9.7 x 10⁻⁶ 500 Rated torque in Nm Max. speed (min⁻ ¹) Moment of inertia in kgm² Static torsional stiffness in Nm/rad  0.3 52,000 2.2 x 10⁻⁷  64  0.5 39,000 9.0 x 10⁻⁷  85  1 31,000 2.5 x 10⁻⁶ 250  2 25,000 7.1 x 10⁻⁶ 330  3.5 19,000 2.7 x 10⁻⁵ 850 Specification 4 Max. shaft misalignment Lateral Axial 0.1 0.004 0.1 0.004 0.1 0.004 0.15 0.006 0.15 0.006 ± 0.3 ±0.012 ± 0.4 ±0.016 ± 0.4 ±0.016 ± 0.5 ±0.020 ± 0.5 ±0.020 Angular in ° 2 2 2 2 2 Max. shaft misalignment Lateral Axial 0.1 0.004 0.1 0.004 0.1 0.004 0.15 0.006 0.15 0.006 ± 0.2 ±0.079 ± 0.3 ±0.012 ± 0.3 ±0.012 ± 0.4 ±0.016 ± 0.5 ±0.020 Angular in ° 2 2 2 2 2 Information • Aluminum AL Beam couplings GN -- Anodized finish, natural color -- Temperature resistant up to 302 °F (150 °C) -- Socket cap screws DIN 912 Steel, blackened finish • Stainless steel AISI 303 NI -- Temperature resistant up to 392 °F (200 °C) -- Socket cap screws DIN 912 Stainless steel AISI 304Cu • ISO Fundamental Tolerances → page QVX • Stainless • RoHS Steel Characteristics → page QVX compliant 2246 transmit angle positions and torques with extreme precision and no backlash. They are manufactured of a single piece and offer high torsional stiffness thanks to the alternating slits. The clamping hubs make beam couplings very easy to assemble. They are used in applications where precise position and movement transmission is required, such as in the drive systems of position measuring systems and in test benches. The Stainless Steel version can also be used in environments requiring high corrosion resistance, such as in medical technology (CAT scanners) and food-processing equipment (confectionary machines). see also... • Bellows Couplings GN 2244 → page QVX • Elastomer Jaw Couplings GN 2240 (with Clamping Hub) → page QVX • Installation • Technical Information on Couplings → page XYZ Information on Couplings → page XYZ On request • Inch • Bore bores with keyway How to order 1 2 3 4 GN 2246 - 32 -B10-3/8- NI www.jwwinco.com | phone: 1-800-877-8351 1 Outside diameter d1 2 Bore code 3 Bore d 2-d 3 5 Material WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov | 3