Drives & Controls Magazine February 2023

47 www.drivesncontrols.com February 2023 NEW PRODUCTS n NSK has announced a range of four-point contact ball bearings with strong outer-ring-guided brass cages that support high speeds and running accuracy. A 35-degree contact angle helps the QJ series bearings to achieve longer operating lives thanks to the resulting high axial load capacity, thus cutting downtime and maintenance costs. Applications include pumps, compressors, robot gearboxes and servomotors. The single-row angular contact bearings have an inner ring that splits into halves. Users can separate the outer ring from the inner ring for easy handling. The bearings can handle significant axial loads in both directions, making them suitable for carrying pure axial loads, or combined loads where the axial load is high. A single compact bearing can replace a face-to-face or back-to- back arrangement of conventional bearings, saving space. The special internal design, combined with precision- machined brass cages, results in high limiting speeds, good dimensional and running accuracy, and a narrow axial clearance range. Other attractions include low heat generation, vibration and noise. NSK Europe 07407326874 www.nskeurope.com Belden has introduced a portfolio of Single Pair Ethernet (SPE) products, designed to optimise Ethernet connections in harsh environments. The products support real-time communications between network devices, enterprise backbones and the cloud. The SPE portfolio includes: IP65/IP67-rated circular M8/M12 patch cords; IP20-rated PCB jacks, and receptacles for industrial field device connections; and various other cordsets. Simple SPE network topologies allow seamless connections from sensors to the cloud, with gateways becoming optional. They support bandwidths up to 10Gbits/s and provide IP65/67 protection against mechanical shock, vibration, dust, chemicals and extreme temperatures. High flexibility and 30% tighter bending ratios make SPE cordsets easy to commission and can help to overcome space constraints. The cordsets contain 55% less metal and plastic than standard Ethernet cordsets, improving their carbon footprint without sacrificing performance. The cables have 30% smaller outer diameters and can be half the weight of existing products. Belden www.belden.com/products/ connectors/industrial- connectors/Single-Pair- Ethernet-SPE-Connectors Thomson Industries has introduced a line of miniature leadscrews and nuts that include 2, 3 and 4mm diameter versions. The leadscrews are available with either standard or anti- backlash lead nuts to optimise positional accuracy, friction and repeatability. The anti-backlash nut design reduces friction between the nut and screw threads to optimise efficiency while eliminating play between the leadscrew and nut. Users can specify a variety of lead options and end machining capabilities for flexibility in final assembly and precision at a miniature scale. For ease of mounting and integration, there are oversized end machining options, such as journals, and a new integrated coupler design, which allows users to mount the leadscrew onto various shaft diameters without needing additional couplings. Thomson Industries 01271 334500 www.thomsonlinear.com/en/ products/lead-screws/ mini-lead-screws Rugged SPE cables have 30% smaller bending ratios Miniature leadscrews tackle the smallest applications Ball bearings offer high speeds, long lives and easy handling Sick has announced a new generation of large-bore hollow- shaft incremental encoders spanning shaft diameters up to 42mm in rugged, 81mm-diameter housings. Starting with 30 or 42mm diameter bores, the shaft size of the DGS80 encoders can be reduced using insulated collets to ensure secure connections. The plastic collets can also isolate the bearings frommotor currents, ensuring long lives. Sick says that the IP65- protected encoders will “open up countless options for speed measurement in machine, web and conveyor designs,”while their compact housings makes them ideal for replacing existing encoders. Users do not need to engineer cumbersome connections to smaller encoder shafts; the same encoder can be adapted to many machine designs. The encoders reduce potential combinations to a short list of part numbers, reducing stockholding. The encoders are suitable for AC asynchronous motor feedback applications, and can measure speeds up to 3,600 rpm with a resolution of up to 8,192 pulses per revolution. Two slotted encoder stator couplings allow users to bolt the encoder at the right position onto any machinery, avoiding the need for custom mounting brackets and cutting installation times. The couplings also allow flexible mounting to AC motor drive shafts. Once mounted, a clamping ring makes it easy to tighten the encoder in place using a single set-screw. Supply voltages are 5–30V, for either HTL and TTL outputs, facilitating integration into most machine control systems and eliminating the need to choose between different voltage ranges. There is a choice of cable and connector options including M12, MS10pin, M23 and cable, as well as six encoder resolutions. Sick (UK) 07928 809035 www.sick.com Hollow-shaft encoders reduce the need for stock