Function: 1. Professional and technical rail and block, strong and durable 2. Adopting 4-point projekt, it can carry loads from any direction and ma good strength and high accuracy 3. Designed with a ball retainer that allows interchangeability in case of low precision 4. The block has a lubrication system, lubricating oil can be easily poured into the side oil inlet 5. Widely used in automatic equipment, precision measuring equipment and many other machines requiring precise linear motion Specification: Characteristics: Professional and technical rail and block, strong and durable. Adopting 4-point projekt, it can transfer loads from any direction and ma good strength and high accuracy. Designed with a ball holder that allows interchangeability in case of low precision. The block has a lubrication system, lubricating oil can be easily poured into the side oil filler. Widely used in automatic equipment, precision measuring equipment and many other machines requiring precise linear motion. Specification: Model: HGR20 Type: Slip Rail Tor sliding: linear rail Length: 400mm/15.7 inch Width: 15mm/0.6 inch Rated static load: 25,31 kn Fixed screw size: M4 x 16 mm Material: stal bearing Static torque: 0,17 kn*m Number of sliders: 2 Weight: 2740 g / 96,7 oz (approximately) List of packages: 1 x Linear Guide 2 x Linear Guide