Midland Engineering Services Ltd

Midland Engineering Services Ltd is an independent supplier of bearings, power transmission and engineering supplies to customers nationwide. We stock a large range of pop metric bearings, oil seals, timing belts, and various engineering components at any one time in order to achieve fast turnaround times. We strive to provide excellent customer services at all times so that customers receive high quality products with a first class service. In the last twenty years we have developed the company to supply THK linear motion systems and supply to independent bearing traders around the UK. We are pleased to be Scotland’s sole distributor of THK LM systems. Our many years of experience enable us to provide products of the highest quality that are designed for long-lasting, effective use. Our on-site facilities also include a cutting facility which enables us to supply custom linear rail lengths on a same day basis. Our technical team is on hand to provide customers with advice and information on our complete range of products so that customers can be sure to purchase the most effective products for their applications/ projects. We also offer an out of hours service so that customers can receive assistance as soon as possible. Our team follows strict quality control procedures to ensure that all products reach customers in perfect condition. We provide a fast and reliable delivery service and work with local UPS and TNT depots to enable urgent orders to reach customers the very next day.

SR - High Rigidity Radial Medium-load Type

Our SR range of medium load types features the SR-SB Type and the SR-V Type. The SR’s balls roll in four rows of a precisely-ground raceway on an LM rail and LM block. The attachment of the end plate to the LM block allows the train of balls to circulate. They are held in place by a retainer plate so they do not fall out if the LM block is removed. Please visit our website to view detailed specifications of the SR range of High Rigidity Radial Medium-load types.

SR - High Rigidity Radial Heavy-load Type

We also supply the SR ranges of heavy load types including the SR-TB Type and the SR-W type. These models are used in the same format as the medium-load types. The combination of the low profile of the assembly with the high rigidity of the LM block creates a stable linear motion with a high degree of accuracy. The SR range is ideally suited to horizontal guide-ways. Please visit our website to view detailed technical specifications of our High Rigidity Radial Heavy-Load types or please call our technical team at Midland Engineering Ltd for further information.

HSR - Four Way Equal Load Heavy-load Type

The HSR features four trains of balls in a contact angle arrangement of 45 degrees. This allows each train to bear an equal rated load in each of the four directions (radial, reverse-radial, and both lateral directions). These qualities enable the HSR to be used in any installation direction. The HSR-A Type features a range of models of various dimensions. Please visit our website for full technical specifications or contact the team at Midland Engineering Ltd with your enquiries.

HSR - Four Way Equal Load Ultra Heavy-load Type

We also supply the HSR range of four way equal load ultra heavy-load types. These models are used in the same format as the heavy-load types. HSR allows the application of a well balanced preload. This makes it possible to increase rigidity in each of the four directions while maintaining a low friction coefficient. The low-profile design and use of high rigidity LM blocks provides stable, highly accurate linear motion. Full detailed specifications are available to view online. If you have any queries, please contact us at Midland Engineering and we will be happy to provide you with further information and advice.

HRW - Wide, 4 Way Equal Load Type

We supply two series of HRW – wide, Four Way Equal Types. These models feature four trains of balls all arranged so that the contact angle is at 45 degrees. This allows the HRW to bear loads in all four directions (radial, reverse-radial and both lateral directions). The HRW ranges are ideal where space is limited, where moments act on the system, or where high rigidity is required. To find out more about the HRW ranges, please visit our website where detailed specifications can be viewed. Or, please contact us at Midland Engineering for further assistance.

GSR - Interchangeable Self-Adjusting Type

We supply a range of models in the GSR series of interchangeable, self-adjustable types. The balls roll in two rows of precision-ground raceway and re-circulate via an attached plate. The LM block surface is tilted which means that by fastening the mounting bolts the user can eliminate clearances and apply an appropriate preload. The GSR type has been designed to provide a smooth linear motion without affecting the service life of the model. This is made possible by a special contact design which incorporates a circular-arc groove so even in uneven levels, smooth linear motion is achieved. The GSR range is ideally suited to applications in which high installation accuracy is needed.

FBW - Slidepack Series

We provide different ranges of models in the FBW – Slidepack Series. These models are designed to enable an infinite linear motion system. They operate via integrated balls which run smoothly on the precision-pressed rail. The FBW ranges are compact and lightweight for ease of use. These cost-effective ranges go through nitriding processing to improve wear resistance of the slider and the rail. The FBW-H slidepack provides a thicker rail to increase rigidity. Please visit our website to view images and dimensions of the FBW-Slidepack Series.

FBL Series Slidepacks

The FBL Series features inner and outer rails which are manufactured from precision roll forming steel plates with two rolls of balls between the rails. The FBL Series is thin and compact in design to create limited linear motion. The balls are spaced equally in the precision pressed cage to eliminate friction between the balls. The clearance and motion is optimally conditioned so that even mounting the unit on achieves smooth motion with little noise. Please see drawings and dimensions on our website or contact the team for further information or advice.

SSR - Radial Type

The SSR range is dimensionally equivalent to and interchangeable with the SR range. It incorporates THK’s innovative Caged Ball™ technology. These models feature balls which roll in four rows of a precisely ground raceway on an LM rail and an LM block. The end plate attached to the ball cage and LM block causes the trains of balls to circulate. The Cages Ball™ technology reduces friction between the balls and thus reduces bearing stress and relative contact velocity – both of which limit heat generation as well as to eliminate metallic noise during use.

SHS - Four Way Equal Load

The SHS ranges feature balls that roll in four rows of precision-ground raceways on an LM and rail and LM block. The end plate, which is attached to the ball cage and LM block, causes the trains of the balls to circulate. These models feature four trains of balls all arranged so that the contact angle is at 45 degrees. This allows each train to bear equal loads in all four directions (radial, reverse-radial and both lateral directions). The SHS – Four Way Equal Load ranges also feature THK’s Caged Ball™ technology. Please visit our website to view diagrams and dimensions. For technical advice and information, please call us at Midland Engineering Services Ltd.

SHW - Caged Ball (TM), Wide 4-Way Equal Load

The SHW range is ideally suited to applications where space is limited and rigidity under Mc moment is required. The range conforms to that of the HRW Series and uses wide rails and a low centre of gravity much like the HRW range. Featuring THK’s Caged Ball™ technology, the SHW range is available in various dimensions – please see images and technical specifications on our website. The type of LM guide used in this range can be used in any position due to the rows of balls which are all arranged at 45 degrees. The same load rating is therefore applied to the LM block in each of the four installation directions.

SNR/SNS (Radial & 4-Way Equal Load) Series Slides

The SNR and SNS series slides ranges of radial and four-way equal load models are the caged ball versions of THK’s NR and NRS series slides. The raceways in both SNR (radial type) and SNS (four-way equal) LM blocks are cut into deep grooves that have a radius which is closer to that of the balls in the conventional designs. This is created via special equipment an advanced cutting techniques. Benefits of the SNR and SNS Series include high vibration and impact resistance and the ability to bear ultra-heavy loads. Please see images and dimensions on our website.

LT Ball Spline

The LT ball splines feature four or six trains of load bearing balls which hold either two or three crests on the spline shaft from both sides. This means that an appropriate preload can be applied easily. The retainer is made from synthetic resin and is built into the interior of the spline nut to hold the balls in place. Please see our website to view images and technical information including the various spline nut dimensions available.

LF Ball Spline

The LF ball splines feature in much the same way. The preloaded angular-contact design features two trains of balls which are arranged opposite each other to hold a crest on the spline shaft at a contact angle of 20 degrees. This reduces the angular backlash in the rotational direction to zero and increases rigidity. Please visit our website to view images and various spline nut dimensions available. Please contact our technical advisors for further information and advice regarding the LT and LF ball spline ranges.

RSR - Miniature Series

The RSR miniature series features an LM block that has been designed for use where space is an issue but yet still provides the required rigidity. The Type RSR can bear loads in any direction perpendicular to the LM rail longitudinal axis. Light moment loads can also be borne by a one-axis configuration. The advantage of the RSR Miniature Series is that it doesn’t have problems which involve dislocation of the cage which often occurs in similar equipment. Please see images and technical specifications online or, contact the team at Midland Engineering with your enquiries

RSH - Retained Miniature Series

The RSH Miniature Series features balls that are held in place by a retaining plate so that they don’t fall out if the LM block is removed from the rail. This compact range is ideally suited to high speed motions. Advantages include unlimited stroke length, and high rigidity in all directions when combined with large diameter balls. The RSH-Z type is a low-inertia model which achieves smooth movement and low running noise. Please see the different ranges on our website where images and dimensions can also be viewed.

VR - Cross Roller Slide Series

The VR series is a highly rigid, high-precision infinite linear motion system. It features a unique roller-holding mechanism which enables the realisation of an increased effective contact length for rollers. This model has been designed by combining the roller cage type R with a shortened roller pitch and dedicated rail type V (precision ground after undergoing heat treatment). Please visit our website to view the VR Series.

Caged Ball Series

THK’s new Caged Ball™ Series eliminates wear that is caused by the friction between the balls. This improves the grease service life and extends maintenance free periods. This technology also lowers noise and significantly increases high-speed performance. Please visit our website to view equipment that utilises the innovative Caged Ball™ technology.