MRD List of Products and Services

This product can be used in a wide range of fields with a combination of wear-resistant nuts and shafts. We have standardized resin nuts that can withstand corrosive environments and hexagonal stainless shafts. It allows for torque transmission and sliding functionality. 【Product Lineup】 ■HTS series ■HTF series ■HTS-P series ■HTF-P series *For more details, please refer to the PDF document or feel free to contact us.

• nut

The "Super Sliding Screw" features a combination of a resin nut and a stainless steel shaft, providing excellent corrosion resistance and suitability for a wide range of environments. The low-friction resin nut enables smooth movement and low noise. By adopting a special mechanism, it achieves zero axial play. The non-backlash specification is included as a standard option. We also offer shaft end processing according to customer requests. 【Specifications】 ■Material - Nut: PPS-based resin - Screw shaft: SUS304 ■Cumulative lead error - ±0.21/300mm *For more details, please refer to the PDF document or feel free to contact us.

• bolt

This catalog is a comprehensive catalog featuring a wide range of products from Ozaki Seiko Co., Ltd., a manufacturer of linear bearings and a subsidiary of MRD. It includes various products such as "linear bearings," "standard shaft end processing," "linear guides," "roller guides," and "lead screws." Additionally, it provides basic knowledge on differentiated products by linear professionals and the selection of reliability. 【Featured Products (Excerpt)】 ■ Basic Knowledge ■ Linear Bearings ■ Linear Shafts & Shaft Blocks ■ Linear Guides ■ Lead Screws ■ Linear Torque *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements
• Metal bearings

We handle the Super Linear Housing "A Series" manufactured by Ozaki Seiko Co., Ltd. We have a wide lineup including the standard type "SLHA16" and the double-sealed "SLHA16-UU." These products are standalone housings, so please use them in combination with MRD linear shafts. 【Lineup】 ■Standard Type: SLHA16, SLHA20, SLHA25, SLHA30 ■Double Seal: SLHA16-UU, SLHA20-UU, SLHA25-UU, SLHA30-UU *For more details, please refer to the PDF materials or feel free to contact us.

• Other machine elements

We handle the Super Linear Housing "B Series" manufactured by Ozack Seiko Co., Ltd. We have a wide lineup, including the standard type "SLHB16" and the double-sealed "SLHB16-UU." This product is a standalone housing, so please use it in combination with MRD linear shafts. 【Lineup】 ■ Standard type: SLHB16, SLHB20, SLHB25, SLHB30 ■ Double seal: SLHB16-UU, SLHB20-UU, SLHB25-UU, SLHB30-UU *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

We handle the Super Linear Housing "W Series" manufactured by Ozack Seiko Co., Ltd. We have a wide lineup, including the standard type "SLHW16" and the double-sealed "SLHW16-UU." This product is a standalone housing, so please use it in combination with MRD linear shafts. 【Lineup】 ■ Standard type: SLHW16, SLHW20, SLHW25, SLHW30 ■ Double-sealed: SLHW16-UU, SLHW20-UU, SLHW25-UU, SLHW30-UU *For more details, please refer to the PDF materials or feel free to contact us.

• Other machine elements

We handle the Super Linear Guides "A Series" manufactured by Ozaki Seiko Co., Ltd. We offer a wide range of products, including the standard type "SLGA16" and the double-sealed "SLGA16-UU." MRD utilizes technology cultivated over many years and, as "linear professionals," responds to the increasingly diverse needs of our customers. 【Product Lineup】 ■Standard Type: SLGA16, SLGA20, SLGA25, SLGA30 ■Double-Sealed: SLGA16-UU, SLGA20-UU, SLGA25-UU, SLGA30-UU *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

We handle the Super Linear Guide 'B Series' manufactured by Ozaki Seiko Co., Ltd. We have a wide range of products, including the standard type "SLGB16" and the double-sealed "SLGB16-UU." MRD utilizes technology cultivated over many years and, as "linear professionals," responds to the increasingly diverse needs of our customers. 【Product Lineup】 ■Standard Type: SLGB16, SLGB20, SLGB25, SLGB30 ■Double Sealed: SLGB16-UU, SLGB20-UU, SLGB25-UU, SLGB30-UU *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

We handle the Super Linear Guides "W Series" manufactured by Ozaki Seiko Co., Ltd. We have a wide range of products, including the standard type "SLGW16" and the double-sealed "SLGW16-UU." MRD utilizes the technology cultivated over many years to respond to the increasingly diverse needs of our customers as "linear professionals." 【Product Lineup】 ■Standard Type: SLGW16, SLGW20, SLGW25, SLGW30 ■Double-Sealed: SLGW16-UU, SLGW20-UU, SLGW25-UU, SLGW30-UU *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

This product features a quiet and smooth linear torque motion that eliminates the impact noise and rattling of the balls, with no play. The bearing case is made of aluminum alloy, which is highly corrosion-resistant and designed to be the most compact, allowing for a reduction in size and weight. Additionally, even at high speeds, the rolling noise of the balls is quiet, improving the working environment in terms of sound. 【Features (excerpt)】 ■ Quiet and smooth linear torque motion ■ Gap adjustment mechanism inside the bearing case ■ Bearing case made of aluminum alloy with excellent corrosion resistance ■ No variation in friction resistance during operation ■ Quiet rolling noise of the balls at high speeds ■ No need for lubrication such as oil or grease *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

We handle the Super Linear Torque Guide 'LTG Series' manufactured by Ozaki Seiko Co., Ltd. We have a wide range of products, including the standard type "LTG16" and the double-sealed "LTG16-UU." This product is a standalone housing, so please use it in combination with the MRD LTG(C)-R rail. 【Product Lineup】 ■ Standard Type: LTG16, LTG20, LTG25, LTG30 ■ Double-Sealed: LTG16-UU, LTG20-UU, LTG25-UU, LTG30-UU *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

This catalog introduces the ball screws handled by our company. It includes information on the materials of the nuts, screw shafts, and steel balls, as well as the available lubricants and the lifespan of the ball screws. For mail-order sales of linear guides, linear bearings, and linear shafts, please leave it to MRD Corporation. 【Contents (excerpt)】 ■ Accuracy grade ■ Material ■ Lubrication ■ Lifespan ■ Allowable rotation speed ■ Nut installation *For more details, please refer to the PDF document or feel free to contact us.

• bolt
• nut

We handle the "Ozack Ball Screw Series" from our affiliated company, Ozack Seiko Co., Ltd. (a linear bearing manufacturer). [Features] - Wide variety - Shaft end processing is also available *For more details, please refer to the PDF document or feel free to contact us.

• bolt
• nut

The "Super Sliding Screw" features a combination of a resin nut and a stainless steel shaft, providing excellent corrosion resistance and suitability for a wide range of environments. The low-friction resin nut enables smooth movement and low noise. With a special mechanism, it achieves zero axial play. A non-backlash specification is included as a standard option. We also offer shaft end processing according to customer requests. 【Specifications】 ■Material - Nut: PPS-based resin - Screw shaft: SUS304 ■Cumulative lead error - ±0.21/300mm *For more details, please refer to the PDF document or feel free to contact us.

• bolt

This document provides information about the "30° trapezoidal screw" that our company handles. The material for the nut is BC6 (JISH5111), and the screw shaft is S45C (JISG4051). The "TM series" requires lubrication because the screw shaft and nut are in sliding contact, necessitating regular supply of lubricant according to conditions. The "TM-OH series" features oil holes, while the "TMH series" has tapped holes for grease nipples, making regular lubrication tasks easier. Additionally, we also introduce precision standards and size selection. [Contents] ■ Types of nuts ■ Standard specification screw shafts ■ Precision standards ■ Materials ■ Lubrication ■ Fit ■ Size selection *For more details, please refer to the PDF document or feel free to contact us.

• nut

This document provides information about the "30° trapezoidal screw" that our company handles. The material for the nut is BC6 (JISH5111), and the screw shaft is S45C (JISG4051). The "TM series" requires lubrication because the screw shaft and nut are in sliding contact, necessitating regular supply of lubricant according to conditions. The "TM-OH series" features oil holes, while the "TMH series" has tapped holes for grease nipples, making regular lubrication tasks easier. Additionally, we also introduce precision standards and size selection. [Contents] ■ Types of nuts ■ Standard specification screw shafts ■ Precision standards ■ Materials ■ Lubrication ■ Fit eye ■ Size selection *For more details, please refer to the PDF document or feel free to contact us.

• nut

This is an introduction to the "Support Units" that our company handles. We offer a lineup that includes fixed supports such as the "SUH Series" and "SUF Series," as well as freely supported options like the "FH Series" and "FF Series." This makes the design of the mounting area easier. Additionally, the fixed support units are equipped with bearings that have been properly preloaded. 【Features】 ■ Compact and easy to install ■ The support units have special seals built in ■ The bearings within the support units are filled with an appropriate amount of grease ■ The fixed support units incorporate a structure to prevent loosening *For more details, please refer to the PDF materials or feel free to contact us.

• Other machine elements

The product has been standardized in miniature sizes (hexagonal shafts 3, 4, 5). It achieves miniaturization and lightweight design of machinery. With a combination of resin nuts (PPS resin) and stainless steel shafts (SUS304), it offers excellent corrosion resistance and can be used in a wide range of environments. A non-backlash specification (W series) is also available as a standard product. 【Product Lineup】 ■HTK Series ・HTK3 ・HTK4 ・HTK5 ■HTKW Series ・HTKW3 ・HTKW4 ・HTKW5 *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

This product can be used in a wide range of fields with a combination of wear-resistant nuts and shafts. We have standardized resin nuts that can withstand environments requiring corrosion resistance and hexagonal stainless shafts. It allows for torque transmission and sliding functionality. 【Product Lineup】 ■HTS series ■HTF series ■HTS-P series ■HTF-P series *For more details, please refer to the PDF document or feel free to contact us.

• nut

The product allows for the ball to roll through the spline structure, achieving both rotational and linear motion with high speed and precision while transmitting torque. Additionally, it can also be used solely for linear motion while preventing rotation. Seals are equipped at both ends of the nut (outer cylinder), and the lubricant supplied through the lubrication holes is structured to reach all rows of ball circulation, ensuring stabilization of the lifespan. 【Features】 ■ A wide range of sizes (3 to 30 mm) ■ Various flange shapes and box shapes ■ Seals equipped at both ends of the nut (outer cylinder) ■ Structure that allows lubricant to reach all rows of ball circulation ■ Capability to stabilize lifespan *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The "RF Series" is a ball bearing with a flange. It eliminates the need for a bearing housing and also removes the need for threading on the shaft side, leading to significant cost reductions. The compact design allows for miniaturization and weight reduction of the equipment. 【Features】 ■ No bearing housing required = significant cost reduction ■ Flange and bearing integrated ■ Compact design ■ Enables miniaturization and weight reduction of equipment *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings
• Contract manufacturing

This document includes information on the "rated life and basic rated load" of linear bearings. We introduce topics such as "minimum life based on the 3-parameter Weibull distribution," "formulas for calculating basic dynamic (C) and static (Co) rated loads according to ISO standards," and "life calculation formulas for short strokes." MRD Corporation, as a professional in linear technology, is producing products that meet the increasingly diverse needs of our customers. [Overview of Contents] ■ Minimum life based on the 3-parameter Weibull distribution for higher reliability ■ Formulas for calculating basic dynamic (C) and static (Co) rated loads and ISO standards ■ Life calculation formulas for short strokes ■ Load distribution and its impact on life under moment loading ■ Structure and features of linear bearings ■ Types of linear bearings and corresponding model number symbols/rank correspondence table *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

In ISO, the basic dynamic load rating calculation formula for general rolling bearings uses the "Lundberg-Plamgren (1947)" theory, and similarly, experimental formulas are used for linear ball bearings as well. Therefore, this document includes the "calculation formula for basic dynamic load ratings of linear bearings and linear guides." It also introduces the "simplified ISO basic dynamic load rating calculation formula" and the "basic static load ratings for ball bushes and ball guides." Please make use of it. 【Overview】 ■ Guidance for calculating the basic dynamic load ratings (ISO) of linear bearings and linear guides ■ Simplified ISO basic dynamic load rating calculation formula ISO14728-1 (2004) ■ Basic static load ratings for ball bushes and ball guides ISO14728-2 (2004) *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

In this document, we have published information on "Deformation and Hertz Stress due to the Load Acting on Linear Bearings." Additionally, we will introduce "Preload" and "Usage Precautions." Please make use of this information. MRD Corporation, as a professional in linear technology, is producing products that meet the increasingly diverse needs of our customers. 【Overview of Publication】 ■ Deformation and Hertz Stress due to the Load Acting on Linear Bearings ■ Preload ■ Usage Precautions *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

In this document, we have published the "Dimension Table for Snap Rings for the Outer Diameter of Linear Bearings." We introduce various specifications, including the "nominal diameter" of each bearing, "reference dimensions," "tolerances," and "maximum diameter when fitting into the bearing." Additionally, we have also included the "Dimension Table for Snap Rings for Linear Bearing Housings." Please make use of this information. [Publication Overview] ■ Dimension Table for Snap Rings for the Outer Diameter of Linear Bearings ■ Dimension Table for Snap Rings for Linear Bearing Housings *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

In this document, we have included the "Dimension Table for Hexagon Socket Bolts and Spring Washers." We have compiled a list of items such as "Screw Designation," "Pitch," and "Drill Hole Diameter." Additionally, we also introduce "Normal Tolerances for Machining Dimensions" and "Weight Calculation Formula (Steel Standard)." Please make use of this information. 【Overview of Contents】 ■ Dimension Table for Hexagon Socket Bolts and Spring Washers ■ Normal Tolerances for Machining Dimensions (JISB0405) ■ Weight Calculation Formula (Steel Standard) Unit: mm *For more details, please refer to the PDF document or feel free to contact us.

• bolt

If there is significant deflection in the shaft, it will affect the lifespan of the linear bearing. In such cases, the lifespan of the linear bearing will be calculated using a specific formula. This document includes methods for calculating the impact of shaft deflection on lifespan, as well as formulas for both "free support at both ends" and "fixed support at both ends" scenarios. Please make use of this information. [Overview of Contents] ■ Impact of shaft deflection on lifespan ■ Shaft deflection calculation formulas *For more details, please refer to the PDF document or feel free to contact us.

• Metal bearings

This document includes a "Hardness Conversion Table." We introduce items such as "Rockwell C Scale Hardness," "Vickers Hardness," "Brinell Hardness," and "Shore Hardness." MRD Corporation, as a professional in linear products, manufactures products to meet the increasingly diverse needs of our customers. Please feel free to consult us if you have any concerns. *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

In this document, we have published a table of "tolerances for commonly used fit dimensions." We introduce "tolerances for shaft dimensions" and "tolerances for hole dimensions" respectively. Please make use of it. MRD Corporation, as a professional in linear products, is manufacturing products that meet the increasingly diverse needs of our customers. If you have any concerns, please feel free to consult us. [Items Listed] ■ Tolerances for shaft dimensions ■ Tolerances for hole dimensions *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements
• Metal bearings

This product is equipped with maintenance-free bearings, extending the lifespan of conventional products and significantly reducing grease leakage. There is no need for regular grease application on the guide shaft. Thanks to the initial grease sealing and improved airtightness, the running noise is quiet. 【TU06-08 Specifications】 ■ Screw diameter: φ8 ■ Lead: 1, 2, 12, 24 ■ Vertical load capacity (kg): 5, 4, 1.5, 0.8 ■ High-speed velocity (mm/s): 30, 60, 350, 700 ■ Maximum stroke: 200 ■ Accuracy grade: C10 *For more details, please refer to the PDF document or feel free to contact us.

• Torque Control

This document is a dimension and performance table for coupling by drive source. It includes the XGT2-C series, MJT-C series, and MOR-C series. Please make use of it. Our company offers online sales of linear guides, linear bearings, and linear shafts. If you have any concerns, please feel free to consult us. 【Included Series】 ■XGT2-C series ■MJT-C series ■MOR-C series *For more details, please refer to the PDF document or feel free to contact us.

• Drive system parts

The "SU45×50 series" features a dust-proof stainless steel sheet on the top surface of the slider. This prevents foreign objects from entering the interior of the slider body, maintaining smooth operation. The single-axis slider body is based on a miniature linear guide, featuring a simple structure that reduces the number of components. Additionally, we offer the "SU85×65 series," which employs a linear guide with a ball retainer, enhancing rigidity and load capacity. 【Features】 ■ Prevention of foreign object intrusion ■ Motor changeability ■ Built-in servo system with driver ■ Non-backlash feed screw ■ Integrated motor with driver, controller, and encoder *For more details, please refer to the PDF document or feel free to contact us.

• others

The "3DMU series" is a three-dimensional motion unit that combines the single-axis slider unit SU series with the two-dimensional unit 2DU series. To accommodate specifications based on customer requests, we will hold separate meetings. Our company offers online sales of linear guides, linear bearings, and linear shafts. Please feel free to consult us if you have any concerns. 【Features】 ■ Various units that combine guidance mechanisms and feeding mechanisms ■ Eliminates complicated design and assembly *For more details, please refer to the PDF materials or feel free to contact us.

• others

Our company handles the "Arc Slider" manufactured by Ozac Seiko Co., Ltd. This product is a new development and will be made to order. We will discuss the detailed specifications separately. [Features] ■ New development ■ Made to order *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

We handle the Ozaki Seiko Co., Ltd. manufactured drive-integrated (belt-driven) type linear roller slider 'BLS series'. It can be directly mounted on aluminum profiles and can also be used as a single-axis slider. We can install motors according to customer requirements, so please contact us for more details. 【Features】 ■ Can be directly mounted on aluminum profiles ■ Quiet operation ■ Suitable for transportation ■ Can also be used as a single-axis slider * For more details, please refer to the PDF materials or feel free to contact us.

• Other machine elements

In recent years, various industries have been working towards the automation of production lines. Leveraging the experience gained over many years as a system manufacturer of linear bearings, we have developed SI/robot interfaces, linear sliders, and their modular products. 【Features】 ■ Linear guide-less and wireless ■ Flexible response to line extensions and layout changes *For more details, please refer to the PDF or feel free to contact us.

• Other industrial robots
• Other conveying machines

The product is a self-driving battery-powered robot and pallet/wireless transport system. Thanks to easy-to-connect modularization, lengths of over 10 to 20 meters are possible. The basic operations for transport are "grasp," "carry," and "rotate," allowing for single-point transport as well as multi-point transport in series, parallel, U-shape, and rectangular configurations. 【Features】 ■ Standardized transport running platform / 3 models ■ Cable carrier system ■ Easy-to-connect modularization ■ Capable of long lines over 10 to 20 meters *For more details, please refer to the PDF materials or feel free to contact us.

• Other industrial robots
• Other conveying machines