SC-LUU / SCS-LUU series long linear bearing units combine an extended aluminum housing with an integrated linear bearing for stable guidance on round linear shafts. The longer housing provides greater support length than standard SC / SCS units, making this series suitable for automation equipment, industrial machinery and other linear motion applications.
Available in multiple shaft diameters, the SC-LUU / SCS-LUU series provides a compact, ready-to-mount solution for applications requiring longer bearing support and reliable linear movement.
66 Bearing Factory manufactures SC-LUU / SCS-LUU linear bearing units with factory-direct supply and drawing-based OEM support. For replacements, confirm the shaft diameter, housing length, mounting-hole spacing and center height against the existing machine drawing; a long SC-LUU unit is not automatically interchangeable with a standard-length SC unit. Send the model marking, quantity and dimensions for confirmation.











Dimensions are in mm. Load ratings are in N. Weight is in g.
| Model | Bearing | Shaft Ø | Cr | Cor | Weight | h | D | W | H | G | A | J | E | S1 | S2 | K1 | L1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SC8LUU | 2×LM8UU | 8 | 431 | 784 | 94 | 11 | 17 | 34 | 22 | 18 | 6 | 24 | 5 | M4×8 | Φ3.4 | 42 | 58 |
| SC10LUU | 2×LM10UU | 10 | 588 | 1100 | 147 | 13 | 20 | 40 | 26 | 21 | 8 | 28 | 6 | M5×12 | Φ4.3 | 46 | 68 |
| SC12LUU | 2×LM12UU | 12 | 813 | 1570 | 220 | 15 | 21 | 42 | 28 | 24 | 8 | 30.5 | 5.75 | M5×12 | Φ4.3 | 50 | 70 |
| SC13LUU | 2×LM13UU | 13 | 813 | 1570 | 245 | 15 | 22 | 44 | 30 | 24.5 | 8 | 33 | 5.5 | M5×12 | Φ4.3 | 50 | 75 |
| SC16LUU | 2×LM16UU | 16 | 1230 | 2350 | 376 | 19 | 25 | 50 | 38.5 | 32.5 | 9 | 36 | 7 | M5×12 | Φ4.3 | 60 | 85 |
| SC20LUU | 2×LM20UU | 20 | 1410 | 2740 | 476 | 21 | 27 | 54 | 41 | 35 | 11 | 40 | 7 | M6×12 | Φ5.2 | 70 | 96 |
| SC25LUU | 2×LM25UU | 25 | 1610 | 3140 | 1115 | 26 | 38 | 76 | 51.5 | 42 | 12 | 54 | 11 | M8×18 | Φ7.0 | 100 | 130 |
| SC30LUU | 2×LM30UU | 30 | 2450 | 5490 | 1375 | 30 | 39 | 78 | 59.5 | 49 | 15 | 58 | 10 | M8×18 | Φ7.0 | 110 | 140 |
| SC35LUU | 2×LM35UU | 35 | 2650 | 6270 | 2200 | 34 | 45 | 90 | 68 | 54 | 18 | 70 | 10 | M8×18 | Φ7.0 | 120 | 155 |
| SC40LUU | 2×LM40UU | 40 | 3430 | 8040 | 3200 | 40 | 51 | 102 | 78 | 62 | 20 | 80 | 11 | M10×25 | Φ8.7 | 140 | 175 |
| SC50LUU | 2×LM50UU | 50 | 6080 | 15900 | 6720 | 52 | 61 | 122 | 102 | 80 | 25 | 100 | 11 | M10×25 | Φ8.7 | 160 | 215 |
| SC60LUU | 2×LM60UU | 60 | 7550 | 20000 | 8480 | 58 | 66 | 132 | 114 | 94 | 30 | 108 | 12 | M12×25 | Φ10.7 | 180 | 240 |
| SC80LUU | 2×LM80UU | 80 | 11500 | 32000 | 15100 | 75 | 81 | 162 | 148 | 125 | 35 | 138 | 12 | M12×30 | Φ10.7 | 230 | 303 |
Send us the model number, quantity and destination. We’ll provide detailed dimensions, pricing and production information.