Overview

Introducing a substantially expanded range of precision ring slides, ring segments, bearings and ancillary components to suit virtually every rotary and track system application. Not all motion needs are linear, which is where PRT2 (Precision Ring and Track), DTS, and commercial product lines come in. The PRT2 line offers rotary systems, while the DTS line offers actuated rotary systems. PRT2 was designed to solve rotary and continuous motion problems - Ring Slides for circular movement and Track Systems for combined linear and rotary motion applications.

• Low friction motion / zero play.
• Extensive range of Ring diameters up to 1501 mm as standard.
• Limitless variety of circuits available.
• Various carriage plate options.
• Stainless steel options.
• Simple and effective means of lubrication.
• Fully adjustable.
• Tolerant of debris.
• Tolerant of misalignment.
• Easy to install.
• Large hollow center to accommodate other components (ring slides)
• Precision flat surface for mounting ancillary components (ring discs)
• Gearcut options for ease of driving.
• High load support option at work station.
• Carriage Brake available.
• Floating Bearings available - axial movement of V position.

Ring systems are precision ground with hardened V faces for long life. Gear teeth may also be cut along the inner or outer diameter to provide means of actuation. Two types of rotary systems are possible - Rings may be mounted and held stationary with a carriage that moves along the ring, or as a moving object supported by fixed bearing assemblies. Concentric and eccentric bearing assemblies provide smooth and easy motion. The assembled rotary system is an ideal solution for rotary table applications. The rotary table can either be non-actuated, or driven using the geared teeth cut into the ring.

Slide rings and segments have hardened 70 degree V faces made from high quality steel. Rings and segments are precision ground with datum register faces - the precise machining allows for easy and accurate installation. Segments are cut from complete rings and stocked in 90 degree and 180 degree segments. Other sizes of segments are available upon request. Double Edge and Single Edge versions available. Gear teeth are available on the inner or outer diameter. Slide rings are ideal for custom rotary tables and medical equipment.

Curved segments are created from standard 90 and 180 degree segments. Each curved segment's ends are ground square in order to mate more easily with adjoining curved segments or straight slides.

Bearing Assemblies

PRT2 bearings are available in a range of 5 useful sizes and various formats to suit most design requirements. All bearings are lubricated for life internally. Available with Metal Shields for exclusion of particulates and low friction running or with Nitrile Seals to inhibit ingress of small particulates liquids. Available in stainless steel fitted with Nitrile Seals. Floating bearings available. Bearing formats include Through-hole fixing type or Blind hole fixing type, and Double Row or Twin type

To calculate the life of this type of rotary system, first obtain a value for the load factor LF by entering the values for LA, LR, and M in respect to the proposed duty, into the equation below, together with the maximum load capacities from the table above.

Two types of carriages are available, fixed center carriages and bogie carriages. Fixed center carriages are ideal for rings and segmented tracks. The fixed center carriage design follows track paths from straight to curved sections with ease. The fixed center carriage, however, will not follow "S" type bends, while the bogie carriages will follow any type of curve with smooth and easy motion. Both types of carriages are made from anodized aluminum and can be supplied fully assembled and adjusted to track segments.
 
The HepcoMotion Fixed Center Carriage with Clamping Brake provides a safe and simple method of locking the carriage in position to facilitate processes where a secure, stationary platform is required. The brake is intended for manual locking of a stationary carriage and is available in sizes 25, 44 and 76. The brake contains two opposing jaws which when tightened via the ratchet locking lever, secures the carriage in place. Unlike some other systems the resulting clamping force does not load the bearings or deflect the carriage even when a high force is applied. Due to the position of the brake on the carriage, it is not possible to traverse from a ring segment to a straight slide, therefore these carriages are not suitable for use with track systems and can only be used on ring slides and segments. Click here to download the product page.

To calculate the life of a rotary system using a standard carriage, first obtain the load factor LF by entering the values for L1, L2, M, MV and MS in respect of the proposed duty into equation [1] below, together with the maximum load capacities from the table above.

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