2243-30-K10-10-AL-KU

Oldham Couplings GN 2243 Aluminum, Hub with Set Screw Inch | Metric 2 Bore code B Without keyway K With keyway (from d1 = 20) Oldham couplings with inch-inch bore 1 Dimensions in: inches - millimeters 3 d1 d 2 - d 3 +0.001  0.79 20 1/4-1/4 1/4-5/16 1/4-3/8 5/16-5/16 5/16-3/8 3/8-3/8  1.18 30 3/8-3/8 3/8-1/2 1/2-1/2 - - -  1.50 38 1/2-1/2 1/2-5/8 1/2-3/4  5/8-5/8  5/8-3/4 3/4-3/4 Bore (in-in) Recommended shaft tolerance −0.001 Oldham couplings with metric-metric bore 1 Dimensions in: millimeters - inches 3 d1 d 2 - d 3 H8  8  0.31  2-2  2-3  3-3 - - - 12  0.47  4-4  4-5  5-5 - - - 15  0.59  4-4  4-5  4-6  5-5  5-6  6-6 20  0.79  6-6  6-8  6-10  8-8  8-10 10-10 30  1.18  8-8  8-10  8-12 10-10 10-12 12-12 38  1.50 12-12 12-15 12-20 15-15 15-20 20-20 Bore (mm-mm) Recommended shaft tolerance h7 Oldham couplings with metric-inch bore 1 2 Dimensions in: millimeters - inches 3 d1 d 2 - d 3 H8 20  0.79  6-1/4  6-5/16  6-3/8  8-1/4  8-5/16  8-3/8 10-1/4 10-5/16 10-3/8 30  1.18  8-3/8  8-1/2 10-3/8 10-1/2 12-3/8 12-1/2 - - - 38  1.50 12-1/2 12-5/8 12-3/4 15-1/2 15-5/8 15-3/4 20-1/2  20-5/8 20-3/4 Bore (mm-in) Recommended shaft tolerance h7 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov www.jwwinco.com | phone: 1-800-877-8351 GN 2243 Oldham Couplings continued Dimensions in: millimeters - inches d1 d4 d5 l1 l2 l3 Tightening torque of the screw in Nm ≈  8  0.31 M2  3.1  0.12  9.6  0.38  2.5  0.10 1.3 0.05 0.3 12  0.47 M3  5.2  0.20 14.2  0.56  3.9  0.15 2 0.08 0.7 15  0.59 M3  8.2  0.32 16  0.63  4.4  0.17 2.2 0.09 0.7 20  0.79 M4 12.2  0.48 21.4  0.84  5.8  0.23 2.9 0.11 1.7 30  1.18 M4 16.2  0.64 32.5  1.28 10  0.39 5 0.20 1.7 38  1.50 M5 20.3  0.80 40  1.57 12.1  0.48 6.1 0.24 4 Thread d1  8  0.31 12  0.47 15  0.59 20  0.79 30  1.18 38  1.50 Recommended shaft insertion depth Rated torque in Nm* Max. torque in Nm* Max. speed (min⁻ ¹) Moment of inertia in kgm² Static torsional stiffness in Nm/rad  0.5  1 78,000 7.4 x 10⁻⁹   12  1  2 52,000 5.3 x 10⁻⁸   60  1.6  3.2 42,000 1.4 x 10⁻⁷   80  3.2  6.4 31,000 5.7 x 10⁻⁷  120 15 30 21,000 5.4 x 10⁻⁶  530 28 56 16,000 1.6 x 10⁻⁵ 1500 Max. shaft misalignment Lateral 0.7 0.028 1 0.039 1 0.039 1.2 0.047 2 0.079 2.5 0.098 Angular in ° 3 3 3 3 3 3 *Load fluctuations are not taken into account Specification 4 5 • Hub Aluminum Anodized finish, natural color AL • Spacer Plastic (Polyacetal POM) KU Temperature resistant up to 176 °F (80 °C) • Set screws Steel, blackened finish -- For d2 / d3 ≤ 4, one set screw -- For d2 / d3 > 4, two set screws • Temperature range from: -4 °F up to +176 °F (-20 °C up to +80 °C) • Keyways • ISO WN / DIN 6885 → page XYZ / QVX Information Oldham couplings GN 2243 can compensate for large lateral shaft misalignments while transmitting high torques. As a result, they are used in applications with a focus on pure torque and power transmission associated with high lateral shaft misalignments. The use of set screws for clamping and the simple plug-in installation make oldham couplings very easy to assemble. They are suitable for a diverse range of applications and are used in general machine construction in packaging machines and pumps. With the bore code K, the keyway is always integrated into both bores d2 and d3. see also... • Elastomer • Oldham Jaw Couplings GN 2241 (Hub with Set Screw) → page QVX Couplings GN 2242 (with Clamping Hub) → page QVX • Installation • Technical Information on Couplings → page XYZ Information on Couplings → page XYZ Fundamental Tolerances → page QVX • Plastic • RoHS Characteristics → page QVX compliant How to order 1 2 3 4 5 GN 2243 - 38 -B1/2-1/2-AL- KU www.jwwinco.com | phone: 1-800-877-8351 1 Outside diameter d1 2 Bore code 3 Bore d 2-d 3 4 Material (Hub) 5 Material (Spacer) WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov | 3