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| Parameter | Value (Metric) | Value (Imperial) |
|---|---|---|
| Model Number | THK SSR15XW, THK SSR15XWM | – |
| Size | 15 | – |
| Outer Dimensions (LM Block) | ||
| Height M | 24 mm | 0.945 inches |
| Width W | 34 mm | 1.339 inches |
| Length L | 56.9 mm | 2.240 inches |
| Block Dimensions | ||
| B | 26 mm | 1.024 inches |
| C | 26 mm | 1.024 inches |
| S x l (Mounting Screw) | M4 x 7 | – |
| L1 | 39.9 mm | 1.571 inches |
| T | 6.5 mm | 0.256 inches |
| K | 19.5 mm | 0.768 inches |
| N | 4.5 mm | 0.177 inches |
| E | 5.5 mm | 0.217 inches |
| f0 | 2.7 mm | 0.106 inches |
| e0 | 4.5 mm | 0.177 inches |
| D0 | 3 mm | 0.118 inches |
| Grease Nipple | PB1021B | – |
| Rail Dimensions | ||
| Width W1±0.05 | 4.5 mm | 0.177 inches |
| W2 | 15 mm | 0.591 inches |
| Height M1 | 9.5 mm | 0.374 inches |
| Pitch F | 60 mm | 2.362 inches |
| d1×d2×h (Mounting Holes) | 4.5×7.5×5.3 | – |
| Maximum Rail Length | 3000 mm | 118.11 inches |
| Rail Mounting Holes | For M4 (Symbol Y) or For M3 (No symbol) | – |
| Basic Load Rating | ||
| Basic dynamic load rating C | 14.7 kN | 3304 lbs |
| Basic static load rating C0 | 16.5 kN | 3709 lbs |
| Static Permissible Moment | ||
| MA (1 block) | 0.0792 kN-m | 700.9 lb-in |
| MA (Double blocks) | 0.44 kN-m | 3894 lb-in |
| MB (1 block) | 0.0486 kN-m | 430.1 lb-in |
| MB (Double blocks) | 0.274 kN-m | 2425 lb-in |
| MC (1 block) | 0.0962 kN-m | 851.4 lb-in |
| Mass | ||
| LM Block Mass | 0.15 kg | 0.331 lbs |
| LM Rail Mass per Meter | 1.2 kg/m | 0.806 lbs/ft |
| Additional Information | ||
| Material | Bearing steel, Stainless Steel Type Available | – |
| Seal Type | SS (Standard: end seals + side seals) | – |
| Radial Clearance (Normal) | -4 to +2 µm | -0.00016 to +0.00008 inches |
| Radial Clearance (Light Preload C1) | -10 to -4 µm | -0.00039 to -0.00016 inches |