AVAILABLE IN: Voltage: 24 V dc Static Torque: 5 – 80 lb-in. Bore Size: 0.25 in. – 0.50 in. Shaft-mounted clutch Couplings are designed for inline loads. Standard voltage is 24V DC, other voltages and dissimilar bore combinations are available for special order. SDP/SI www.sdp-si.com/products

AVAILABLE IN: Voltage: 24 V dc Torque Range: .06 – 115 lbf in. Length: 2.10 – 5.53-in. Magnetic Particle Brakes are ideal for tension control applications and high cycle applications such as labeling machines for the food and drug industry. Their operating torque range is broad and can be very accurately controlled. Standard catalog units […]

AVAILABLE IN: Materials: Nylon Bore Size: 6 mm – 20 mm Outer Diameter: 40 mm – 52 mm Length: 48 mm – 56 mm Two- and Three-Piece Junior Couplings are curved tooth gear couplings made of nylon. Designed to compensate for axial, radial, and angular misalignment, they are lightweight and maintenance-free. SDP/SI www.sdp-si.com

AVAILABLE IN: Materials: Aluminum, Brass, Steel Bore Size: 0.1248-in. (3mm) – 0.8750-in. (16mm) Outer Diameter: 0.50-in. (12.7mm) – 3.00-in. (76.2mm) Mechanical Slip Clutches are offered in a variety of configurations and sizes. Slip clutches are available as standard catalog items in both inch and metric sizes. The standard line of slip elements provides a wide […]

AVAILABLE IN: Materials: Acetal Bore Size: 1/8-in. (2mm) – 3/8-in. (10mm) Outer Diameter: 1/4-in. (6.3mm) – 5/8-in. (15.9mm) Length: 3/4-in. (19mm) – 4 13/32-in. (111.8mm) Plastic universal joints are inexpensive, dampen vibration, electrically insulating, and are well suited for low-torque applications. We offer a wide variety of sizes and styles as standard catalog items. We […]

AVAILABLE IN: Materials: Acetal, Brass, Stainless Steel Bore Size: 0.125-in. (2mm) – 0.6250-in. (14mm) Outer Diameter: 0.25-in. (6.3mm) – 0.625-in. (25.41mm) Length(closed): 1.5-in. (38.1mm) – 10.1-in. (256mm) Stainless steel telescoping universal joints are offered in a number of sizes and are heat and corrosion-resistant. Telescoping miniature universal joints feature zero backlash and accommodate 1/4 axial […]

AVAILABLE IN: Materials: Stainless, Steel, Steel, Zinc Bore Size: 0.0938-in. (2.5mm) – 0.6250-in. (20mm) Outer Diameter: 3/16-in. (4.76mm) – 1-in. (32mm) Length: 1-in. (25.4mm) – 7.30-in. (185mm) Single and double-joint stainless steel and alloy steel universal joints are offered with a variety of bore sizes. Miniature universal joints feature zero backlash, sealed-in lubrication, and low […]

AVAILABLE IN: Materials: Stainless Steel Bore Size: 0.1248. – 0.2498-in. Outer Diameter: 0.75-in. Length: 0.87-in. SDP/SI Precision Multi-jawed Coupling is a rigid coupling that accommodates minimal shaft misalignment. The helical gear coupling enables a positive connection between two shafts that can be disconnected or connected at any time when stopped. SDP/SI www.sdp-si.com/products/Couplings

Universal joints are used to transmit power, motion, or both. Cardan joints or Hooke joints are the most common and consists of two yokes, one on each shaft, connected by a cross-shaped intermediate member called the ”spider”. The angle between the shafts is called the operating angle. It is usually constant during operation, but not […]

Flexible Couplings have the ability to compensate for shaft misalignment and are designed to accommodate various types of load conditions. No one type of coupling can provide the universal solution to all coupling problems; hence many designs are available, each possessing construction features to accommodate one or more types of application requirements. SDP/SI offers many […]

AVAILABLE IN: Materials: Acetal Bore Size: 1/8-in. (2mm) – 3/8-in. (10mm) Outer Diameter: 1/4-in. (6.3mm) – 5/8-in. (15.9mm) Length: 3/4-in. (19mm) – 4 13/32-in. (111.8mm) Plastic universal joints are inexpensive, dampen vibration, electrically insulating, and are well-suited for low-torque applications. We offer a wide variety of sizes and styles as standard catalog items. We can […]

AVAILABLE IN: Materials: Aluminum, Stainless Steel, Steel Bore Size: 0.094-in. (2mm) – 1.00-in. (12mm) Outer Diameter: 1/4-in. (6.35mm) – 2 1/4-in. (31.8mm) Length: 0.37-in. (20mm) – 3.50-in. (58mm) SDP/SI Helical Couplings, or beam couplings, are another type of flexible coupling allowing for axial motion, angular misalignment, and parallel offset. This coupling design features one-piece construction […]

AVAILABLE IN: Materials: Brass, Bronze, Stainless Steel, Nickel, Steel, Aluminum, Neoprene, Nylon, Zinc Bore Size: 0.0625-in. (1mm) – 1.750-in. (45mm) Outer Diameter: 0.250 in. (6.4mm) – 3.700-in. (94mm) Length: 0.480-in. (14.2mm) – 3.55-in. (90.3mm) SDP/SI Bellows Couplings are flexible couplings designed to accommodate various types of load conditions. SDP/SI Hi-Flex Bellows Couplings are used for […]

Vibration and shock-absorbing products from SDP/SI can control vibration and reduce noise levels in everyday machinery. In many machines, the vibration is not part of its regular or intended operation and function, but rather it cannot be avoided. The task of vibration isolation is to control this unwanted vibration so that its adverse effects are […]

AVAILABLE IN: Materials: Aluminum, Brass, Steel Bore Size: 0.1248-in. (3mm) – 0.8750-in. (16mm) Outer Diameter: 0.50-in. (12.7mm) – 3.00-in. (76.2mm) Mechanical Slip Clutches are offered in a variety of configurations and sizes. Slip clutches are available as standard catalog items in both inch and metric sizes. The standard line of slip elements provides a wide […]

AVAILABLE IN: Voltage: 24 V dc Static Torque: 5 – 80 lb-in. Bore Size: 0.25-in. – 0.50-in. Shaft-Mounted Clutch Couplings are designed for inline loads. Standard voltage is 24V DC, other voltages and dissimilar bore combinations are available for special order.   SDP/SI www.sdp-si.com/products/Brakes-and-Clutches/index.php

Stock Drive Products/Sterling Instrument (SDP/SI) expands their selection of flexible couplings to include the single disk type couplings (short type), series S50XHSM… and the double disk type couplings (standard length type), series S50XHWM… The disk-type flexible couplings are an economical option while providing greater torque capability and improved performance in a reduced size. The compact […]

Due to rapid growth in the industrial automation market producing an urgent need for premium quality parts and services, Stock Drive Products/Sterling Instrument (SDP/SI) is launching a series of frameless motors as a drop-in solution for robotics applications. Designed to be pressed into a machine’s housing, the SDP/SI NH1-D series Frameless Brushless Motors provide a […]

Stock Drive Products/Sterling Instrument (SDP/SI) has launched a series of Integrated Motors to simplify motion system design. Replacing multiple components with a compact all-in-one motor and electronics package, Integrated Motors simplify motion system design while providing many advantages. “Doing speed, position and torque closed-loop control with separate brushless motor and driver/controller technologies can be challenging,” […]

Nidec Motion Control is pleased to announce a newly formed Distribution Partnership with Designatronics. Nidec Motion Control specializes in the development and manufacturing of power-dense, standard and custom servo motors, fractional and subfractional gearmotors, as well as a wide array of motor controllers. Designatronics, through its SDP/SI brand is a one-stop source for mechanical components, […]

Stock Drive Products/Sterling Instrument (SDP/SI) has debuted several new series of high-gain couplings. These Antivibration Flexible Couplings are designed for use with high gain servomotors. When a servomotor drives a mechanism, as in applications such as semiconductor manufacturing equipment, blood analyzers or high-speed printers, a change in direction causes a phenomenon called hunting. Hunting is […]