Gears & Reducers

Boston Gear spur gears are designed to transmit motion and power between parallel shafts. The different styles offered include spur, gear rack, pinion wire, stem pinions, and internal gears, and most come with a selection of bore diameters, keyways, and setscrews to accommodate a wide variety of application requirements. They are available in plastic, non-metallic, brass, steel, and cast iron and are manufactured in a variety of styles, including plain, web, web with lightening holes, and web with spokes. Many are available with or without hubs.Boston Gear manufactures both 14 1/2° and 20° PA, involute, full-depth system gears. While 20° PA is generally recognized as having a higher load-carrying capacity, 14 1/2° PA gears are used extensively because of lower backlash and smoother, quieter operation. Just ask your CSR which is best for you. And remember that spur gears and rack are available via our Guaranteed Same Day Shipment Program.

The E6.2H 5000 Air Circuit Breaker is engineered for applications requiring reliable circuit protection with a rated current of 5000 A and a maximum voltage of 690 V AC. This model integrates the Ekip Hi-Touch LSI release mechanism, ensuring effective operation in both open and closed positions, and includes four auxiliary contacts for enhanced functionality. With an electrical durability rated for up to 440 V for 3000 cycles and for 500 to 690 V for 2000 cycles, this circuit breaker is capable of handling up to 10 cycles per hour. Its mechanical durability is rated at 12000 cycles, accommodating 60 cycles per hour, thus ensuring longevity and reliability in demanding environments. Notable specifications include a rated short-circuit breaking capacity of 100 kA across various operational voltages and a rated impulse withstand voltage of 12 kV, compliant with IEC 60947-2 standards. The product maintains a power loss of 850 W and features a neutral pole current at 50% of the rated current. In terms of physical dimensions, the breaker has a net width of 929 mm, height of 425 mm, and depth of 383 mm, with a total weight of 134 kg. This ensures compatibility with existing installations while providing robust performance. For environmental compliance, the product adheres to RoHS directives and has a recyclability rate of 76.7%, aligning with modern sustainability practices. The designation code for this product is 1SDA073248R1.

The E6.2V 4000 is a three-pole air circuit breaker designed for use in systems requiring a reliable current interruption solution. With a rated operational voltage of 690 V AC and a rated current of 4000 A, this unit is equipped with an Ekip Dip LI release type, ensuring precise operation under varying electrical conditions.It features a robust electrical durability rated for up to 440 V at 4000 cycles, and up to 690 V at 4000 cycles, enabling its use in diverse applications. The short-circuit performance level is rated at V, providing a reliable safety margin in protective settings. The unit can withstand significant short-circuit conditions with a rated ultimate short-circuit breaking capacity (Icu) of 150 kA at various voltages, ensuring robust protection for installations.Dimensions of the product include a net width of 803 mm, height of 425 mm, and depth of 383 mm, with a total weight of 120 kg. This enables integration into standard electrical cabinets without compromising space. The device also supports a mechanical durability of 12000 cycles, affirming its longevity in demanding environments.Furthermore, the E6.2V 4000 adheres to environmental standards, featuring a recyclability rate of 76.7% as per EN45555. It is compliant with relevant safety and environmental directives, including RoHS and REACH.

The E1.2C 1600 serves as a vital component for the SACE Emax 2 circuit breaker system, featuring a four-pole configuration and solid-state release technology. This unit is designed for alternating current (AC) operations, ensuring reliable performance in various industrial applications.With a rated current of 1600 A and a maximum operational voltage of 690 V AC, this breaker is capable of handling significant load requirements. It exhibits an electrical durability of up to 3000 cycles at 440 V and 6500 cycles at voltages between 500 V and 690 V, facilitating frequent operation. The device also supports a mechanical durability rating of 20,000 cycles, allowing for extended use in demanding environments.In terms of safety, the E1.2C 1600 provides a rated short-circuit breaking capacity of 50 kA across various voltage levels, ensuring protection against electrical faults. It complies with IEC standards, including a rated impulse withstand voltage of 12 kV, making it suitable for rigorous applications.The product's dimensions are as follows: a net width of 348 mm, a height of 363.5 mm, and a depth of 271 mm, with a total weight of 20 kg. This compact design allows for easy integration into existing systems. Additionally, the E1.2C 1600 is designed with environmental considerations in mind, featuring a recyclability rate of 76.4% and compliance with RoHS directives.This model, designated as E1.2 and version W, is ideal for use in IT networks, ensuring effective circuit protection for transformers, generators, and installations.

The E1.2B 630 Air Circuit Breaker is engineered for robust performance in AC environments, offering a rated current of 630 A and a rated operational voltage of 690 V AC. This model is equipped with front terminals and is designed with solid-state release technology, specifically the Ekip Touch LI release system, ensuring precise control and monitoring capabilities.With a mechanical durability rating of 20,000 cycles and electrical durability rated for up to 8,000 cycles at voltages between 500 and 690 V, this device supports continuous operation at high standards. It maintains a short-circuit performance level of B, confirming its reliability in critical applications.The rated short-time withstand current is specified at 42 kA for 1 second, supporting various operational scenarios including transformer and generator protection. Additionally, the E1.2B 630 complies with IEC standards, ensuring safety and compatibility across different systems.This circuit breaker is designed to enhance sustainability, with a recyclability rate of 77.6% according to EN45555 standards and an environmental product declaration available for further transparency.

The E6.2H 4000 is an air circuit breaker designed for robust electrical protection, accommodating a rated current of 4000 A and a maximum operational voltage of 690 V AC. This model includes four auxiliary contacts and operates with a solid-state release system, specifically the Ekip Hi-Touch LSIG, ensuring reliable performance in demanding applications.With an impressive electrical durability rated for 10,000 cycles at 440 V and 4000 cycles at voltages from 500 V to 690 V, this breaker supports 10 cycles per hour under specified conditions. Its mechanical durability extends to 12,000 cycles at a rate of 60 cycles per hour. The breaker maintains a power loss of 309 W during operation.In terms of short-circuit performance, the rated service short-circuit breaking capacity can reach 100 kA across various voltage levels, ensuring comprehensive protection in case of fault conditions. The rated ultimate short-circuit breaking capacity (Icu) also sustains 100 kA for voltages up to 690 V AC.This product conforms to IEC standards and includes a tight connection with a torque of 70 N·m. Its dimensions are 888 mm in width, 371 mm in height, and 270 mm in depth, weighing 125 kg. The Designation Code for this air circuit breaker is E6.2.

The E6.2V 6300 Air Circuit Breaker is designed for reliable current interruption in AC applications. This device features a three-pole structure with a rear flat horizontal terminal connection and is equipped with Ekip Hi-Touch LSIG release technology.With a rated current of 6300 A and a rated operational voltage of 690 V AC, this circuit breaker ensures effective protection against overloads and short circuits. The unit offers a rated service short-circuit breaking capacity of 150 kA across various voltage levels, ensuring robust performance in demanding environments. Its mechanical durability is rated at 12,000 cycles, supporting 60 operations per hour, while the electrical durability is rated for 2,000 cycles at specified voltages.Dimensions of this circuit breaker are as follows: 762 mm in width, 371 mm in height, and 270 mm in depth, with a net weight of 109 kg. The product also adheres to environmental standards, boasting a recyclability rate of 76.7% according to EN45555, alongside certifications for RoHS compliance.For easy installation, a recommended screwdriver size of M12 is suggested, and the device includes four auxiliary contacts for enhanced functionality. The product complies with IEC standards and is suitable for IT networks up to 690 V.

The air circuit breaker, designated as E6.2H/f 5000, is configured with a fixed four-pole design and is equipped with a solid-state release, specifically the Ekip Dip LSIG. Operating in an AC environment, it supports a rated operational voltage of 690 V and has a rated current of 5000 A. The product demonstrates notable electrical durability with cycles rated at 3000 for voltages up to 440 V and 2000 for voltages between 500 V and 690 V. Additionally, it features a neutral pole current of 100% and supports a substantial short-circuit breaking capacity of 100 kA across various operational voltages. With a mechanical durability of 12,000 cycles, the device is built for long-lasting performance. The dimensions of the circuit breaker are 1014 mm in width, 371 mm in height, and 270 mm in depth, with a net weight of 140 kg. The terminal connections are designed for rear flat horizontal mounting with bolt-type terminals, requiring a tightening torque of 70 N·m. This model adheres to IEC standards and is suitable for IT networks at 690 V, ensuring compliance with current regulations. Furthermore, this product contributes to sustainability through its 76.7% recyclability rate, in line with EN45555 standards, and is validated for zero waste to landfill. The environmental product declaration supports its compliance with both RoHS and REACH directives, ensuring the safety and sustainability of its materials.

The Twist-Lock® flanged receptacle is designed for 30A, 3-phase Y 120/208V AC applications, featuring a 4-pole, 5-wire grounding scheme. It complies with NEMA L21-30R standards and is encased in durable white nylon.Constructed with a clear polycarbonate terminal retainer and nickel-plated steel for the terminal clamp, this device ensures reliable connections. The body contact carrier and flanged casing are made from natural white nylon, while the brass components enhance conductivity and durability.With a dielectric voltage withstand capacity of 2,000V minimum and certification for current interrupting at full rated current, this receptacle is built to handle demanding electrical requirements. It operates effectively within a temperature range of -40°C to 75°C, accommodating terminal sizes from #10 AWG to #16 AWG.This device meets various flammability ratings, ensuring safety in diverse environments. The flanged receptacle is applicable in settings requiring robust electrical connections and is suitable for both indoor and outdoor use, given its moisture resistance rating of IP20.

The E6.2H/f 6300 model is a fixed, four-pole air circuit breaker designed for AC applications, equipped with a solid-state release mechanism known as Ekip Touch LSI. This device operates effectively at a rated current of 6300 A and a maximum operational voltage of 690 V AC.With an electrical durability rating of up to 440 V for 2000 cycles and 500 to 690 V for the same number of cycles, this breaker also supports a mechanical durability of 12,000 cycles. The unit guarantees short-circuit breaking capabilities that reach 100 kA across various voltage levels, ensuring reliable protection in demanding environments. The product conforms to IEC standards and is classified under the ETIM 9 system as a power circuit-breaker suitable for transformer and generator installations.Measuring 1014 mm in width, 371 mm in height, and 270 mm in depth, the E6.2H/f 6300 weighs 140 kg, making it suitable for various installations where space and weight considerations are critical. The rear flat horizontal terminal connection type with a tightening torque of 70 N·m allows for straightforward integration into existing systems.Additionally, this breaker is designed with environmental sustainability in mind, achieving a recyclability rate of 76.7% in compliance with EN45555 standards. The product is supported by ABB EcoSolutions initiatives and is validated for zero waste-to-landfill targets.

The E6.2H 6300 is an air circuit breaker designed for reliable electrical protection in various applications. With a rated current of 6300 A and a rated operational voltage of 690 V AC, it supports effective safeguarding of electrical installations. This model features a solid-state release mechanism and includes four auxiliary contacts, ensuring comprehensive operational flexibility. The breaker is rated for a short-circuit breaking capacity of 100 kA across multiple voltage levels, which guarantees robust performance under fault conditions. Constructed to withstand significant electrical and mechanical stress, the E6.2H 6300 offers an electrical durability of 2000 cycles at voltages up to 690 V and a mechanical durability rated for 12,000 cycles. Its dimensions include a net width of 762 mm, height of 371 mm, depth of 270 mm, and a weight of 109 kg. This product complies with various international standards, ensuring its suitability for industrial applications. It is also designed with environmental considerations in mind, featuring a recyclability rate of 76.7% according to EN45555 standards. The Designation Code for this product is E6.2, underscoring its classification within the SACE Emax series.

The E6.2V/f 5000 model is an air circuit breaker designed for AC applications, featuring a fixed four-pole configuration. It incorporates terminals arranged in a rear horizontal layout and is equipped with an Ekip Touch LI release mechanism. The device supports a rated current of 5000 A and provides electrical durability at voltages up to 690 V, with operational capability across a range of 220 V to 690 V.This breaker is built for high performance, offering a rated service short-circuit breaking capacity of 150 kA at various voltages, ensuring reliable circuit protection. Additionally, it has a mechanical durability rating of 12,000 cycles, capable of handling up to 60 cycles per hour, which indicates its suitability for demanding environments.The product's dimensions include a net width of 1014 mm, height of 371 mm, and depth of 270 mm, with a net weight of 140 kg. Its design adheres to IEC standards and is classified under ETIM 9 as a power circuit-breaker for transformer, generator, and installation protection. Notably, it offers a recyclability rate compliant with EN45555, contributing to eco-friendly practices.

The E1.2C 1000 is an air circuit breaker designed for three-pole applications, integrating the Ekip Touch LI solid-state release mechanism. It operates efficiently at rated currents up to 1000 A and supports electrical durability of up to 8000 cycles at voltages ranging from 440 V to 690 V AC.This circuit breaker achieves a mechanical durability rating of 20,000 cycles, making it suitable for frequent operational demands. It is equipped with four auxiliary contacts and is designed to manage short-circuit performance levels classified as Level C.In terms of electrical specifications, it provides a rated impulse withstand voltage of 12 kV in accordance with IEC 60947-2 and supports a rated short-time withstand current of 42 kA for 1 second. The product is compliant with various standards, ensuring reliability and safety in industrial applications.With a net weight of 18 kg and dimensions of 278 mm in width, 363.5 mm in height, and 271 mm in depth, this breaker is built for effective integration into control systems. Its design aligns with ABB EcoSolutions, promoting a recyclability rate of 77.6% and supporting sustainability initiatives.

The E6.2H 6300 Ekip Hi-Touch LSIG is designed for use in air circuit breakers, specifically the SACE Emax 2 series. This component operates with a rated current of 6300 A and is capable of handling operational voltages of up to 690 V AC. It incorporates a solid-state release that enhances its electrical durability, rated for 2000 cycles under voltage conditions up to 440 V, and 2000 cycles for voltages between 500 V and 690 V, with an operational limit of 10 cycles per hour.This four-pole device supports a neutral pole current at 50% of its rated capacity. The unit has a total power loss of 1550 W and is compliant with IEC standards, ensuring reliable performance under various electrical conditions. The rated service short-circuit breaking capacity is consistent across a range of voltages, providing a 100 kA capacity at multiple standard voltages including 400 V and 690 V.With a mechanical durability rating of 12000 cycles, this product is engineered for high performance, accommodating 60 cycles per hour. It features a compact design with net dimensions of 929 mm in width, 425 mm in height, and 383 mm in depth, weighing 134 kg. The Ekip Hi-Touch LSIG release type enhances the safety and operational reliability of the circuit breaker.Additionally, it meets environmental standards, with a recyclability rate of 76.7% according to EN45555, and is validated for zero waste to landfill initiatives. The product's classification includes ETIM 9 as a power circuit-breaker suitable for transformer, generator, and installation protection.

The E2.2H 800 model features a three-pole configuration and is equipped with the Ekip Touch LSIG solid-state release for reliable performance in AC environments. The product is capable of handling rated currents up to 800 A and operates effectively at a voltage rating of 690 V AC. It ensures high electrical durability, with a cycle rating of 15,000 under specified conditions, and a mechanical durability of 25,000 cycles.With a short-circuit breaking capacity of up to 100 kA for various voltage levels, including 400 V and 415 V, this circuit breaker meets stringent operational demands. It also supports a maximum short-time withstand current of 85 kA for 1 second and 66 kA for 3 seconds, reflecting its robust design standards.In terms of dimensions, the device measures 317 mm in width, 425 mm in height, and 383 mm in depth, weighing 48 kg. The product's design adheres to IEC standards, ensuring compatibility and safety across installations. Its environmental credentials are notable, with a recyclability rate of 79.3% in accordance with EN45555, contributing to sustainability goals.

The E1.2B 1250 is a fixed four-pole air circuit breaker designed for effective circuit protection. With a rated current of 1250 A and operational voltage of 690 V AC, it is capable of handling significant electrical loads. The device features solid-state release technology, specifically the Ekip Hi-Touch LSI, ensuring precise control and reliability in performance.In terms of durability, the breaker supports a mechanical lifespan of 20,000 cycles and an electrical durability of 8,000 cycles at 440 V and 6,500 cycles at 500-690 V. The rated short-circuit breaking capacity is consistently rated at 42 kA across various operational voltages, which ensures robust protection against faults.Dimensions for the device are 280 mm in width, 296 mm in height, and 183 mm in depth, weighing 16 kg. It is designed with front terminal connections and requires a tightening torque of 45 N·m for secure installation. The product adheres to IEC standards and is suitable for IT networks up to 690 V.Additionally, the E1.2B 1250 incorporates eco-design principles, achieving a recyclability rate of approximately 76.4% and supports extended product lifetime services. This model is classified under ETIM 9 as a power circuit-breaker for transformer, generator, or installation protection.

The E6.2H 5000 is a fixed four-pole air circuit breaker equipped with a solid-state release mechanism, specifically the Ekip Touch LI version, suitable for AC applications. It operates within a rated current of 5000 A and a rated voltage of 690 V AC. The device is designed to handle a rated short-circuit breaking capacity of 100 kA across various voltage levels, ensuring robust protection for electrical installations.This circuit breaker is notable for its mechanical durability, rated at 12,000 cycles, and electrical durability, with cycling capabilities defined for voltages up to 440 V at 3,000 cycles and 500 to 690 V at 2,000 cycles. It features a neutral pole current rating of 50%, enabling efficient operation in diverse configurations.Installation is facilitated through a rear flat horizontal terminal connection type, utilizing bolt terminals with a recommended tightening torque of 70 N·m. The product dimensions include a net width of 888 mm, height of 371 mm, and depth of 270 mm, with a total weight of 125 kg. Compliance with IEC standards ensures that this circuit breaker meets the necessary safety and operational requirements.Additional environmental considerations include a recyclability rate of 76.7% in accordance with EN45555, supporting sustainable practices. The E6.2H 5000 is classified under multiple standards, including ETIM 9: EC000228, and is suitable for use in IT networks at 690V.

The E2.2S 1600 is an air circuit breaker designed for effective electrical protection in various applications. This model features three poles and is equipped with rear horizontal terminals, facilitating straightforward installation and connectivity. The solid-state release mechanism enhances operational reliability and performance.With a rated current of 1600 A and a maximum operational voltage of 690 V AC, the circuit breaker is built to handle significant electrical loads. It achieves a short-circuit breaking capacity of 85 kA across multiple voltage levels, ensuring robust protection against short circuits. The electrical durability is rated for up to 12,000 cycles at 440 V and 10,000 cycles at 500 to 690 V, accommodating frequent operational demands.This circuit breaker also adheres to international standards such as IEC, highlighting its compliance with industry requirements. The product is classified under the designation code E2.2, further defining its specifications within the SACE Emax 2 product line. Its construction allows for a mechanical durability of 25,000 cycles, making it suitable for high-demand environments.Environmental considerations have also been addressed, with a recyclability rate of 79.3% and compliance with relevant directives such as RoHS. The product meets the criteria for zero waste to landfill, contributing to sustainable practices in its lifecycle.

The E4.2N 3200 is a fixed three-pole air circuit breaker equipped with a solid-state release system, specifically the Ekip Hi-Touch LSIG. This device operates at a rated current of 3200 A and a maximum rated operational voltage of 690 V AC, making it suitable for various industrial applications. It includes four auxiliary contacts and is designed for high electrical durability, rated for 7000 cycles at voltage levels up to 440 V.With a mechanical durability rated for 20000 cycles, this circuit breaker ensures long-term reliability under frequent operation. Notably, it provides a rated short-circuit breaking capacity of 66 kA across multiple voltage settings, which enhances its performance in critical fault conditions. The product meets IEC standards and features a rated impulse withstand voltage of 12 kV according to IEC 60947-2.The terminal connection type is rear flat horizontal, secured with bolts and a tightening torque of 70 N·m. The product dimensions are 384 mm in width, 371 mm in height, and 270 mm in depth, with a total weight of 56 kg. The E4.2N has been designed with an emphasis on recyclability, achieving a rate of 77.4% in accordance with EN45555 standards.For additional information, the Designation Code associated with this product is E4.2. This model is compliant with RoHS regulations and is designed to support zero waste to landfill initiatives.

The E2.2H 2500 air circuit breaker is configured with four poles and is equipped with a solid-state release system, specifically the Ekip Touch LSIG. It operates at a rated current of 2500 A and is suitable for voltages up to 690 V AC. This model supports horizontal rear terminal connections, utilizing bolts for secure installation with a tightening torque of 70 N·m.It has an electrical durability rating of 8000 cycles at 440 V and 7000 cycles at 500 to 690 V, with a mechanical durability of 20,000 cycles. The product’s rated short-circuit breaking capacity is 100 kA across various voltage ratings, ensuring robust protection in electrical installations.Dimensions include a width of 366 mm, height of 371 mm, and depth of 270 mm, with a net weight of 53 kg. The unit is compliant with IEC standards and features an environmental product declaration.