Products
Rotary Motion Control
All Rotary Motion Control
Rotary Indexers
Rotary Indexers
Roller Pinion Gears
Geared Bearings
Gears
Precision Brakes
Ball Screw Brakes
Shaft Brakes
Servomotor Brakes
Gearheads
Gearheads
Rotary Motion Control
Rotary Motion Control including Rotary Indexers, Roller Pinion Gears, Precision Brakes and Harmonic Gearheads.
Rotary Indexers
Based on Nexen’s innovative Roller Pinion technology, Nexen Ring Drive (Compact Precision Ring Drive and Precision Ring Drive) systems come complete with a precision grade bearing and drive mechanism in a rigid housing to simplify the selection process. With all the features of our other advanced Roller Pinion System technology, Nexen's Ring Drives open up new design possibilities for the next generation of machines.
Rotary Indexers
Based on Nexen’s innovative Roller Pinion technology, Nexen Ring Drive (Compact Precision Ring Drive and Precision Ring Drive) systems come complete with a precision grade bearing and drive mechanism in a rigid housing to simplify the selection process. With all the features of our other advanced Roller Pinion System technology, Nexen's Ring Drives open up new design possibilities for the next generation of machines.
Rotary Indexers
Based on Nexen’s innovative Roller Pinion technology, Nexen Rotary Indexer Systems come complete with a precision grade, high capacity bearing and drive mechanism in a rigid housing.

With options for high speed, high torque and zero backlash, Nexen Ring Drives can be optimized for every application. With accelerations up to twice as high as other indexing technologies, Nexen Ring Drive systems provide more productivity while boasting low maintenance, high efficiency and long life.
Roller Pinion Gears
Nexen’s patented rack and roller pinion design maintain high repeatable accuracy with zero backlash over longer distances with quieter operation - even at high speeds.
Geared Bearings
Nexen's Geared Bearing solution is ready to be integrated into a machine with its full ring gear and a high-capacity cross-roller bearing.

Based on Nexen's innovative Roller Pinion technology, the Roller Pinion System Geared Bearings come complete with a precision zero backlash gear mounted on a precision grade, high capacity bearing. Geared Bearings can be incorporated into any precision rotary motion control application with a number of possible sizes and gear ratios, all with zero backlash.
Gears
Nexen's Roller Pinion Gear System (RPG) is based on an innovative pinion consisting of bearing-supported rollers and a unique tooth profile. Gears, Gear segments and geared bearings can be configured to meet the application needs.

This unique drive system provides high positional accuracy, zero backlash, no cumulative error, low-velocity ripple, high speeds, rigidity, low noise, low maintenance, corrosion resistance, and long life. This opens up new machine design possibilities and provides the capability to achieve much higher performance levels.
Precision Brakes
Nexen’s Ball Screw / Shaft Brake / Servomotor Brake is a high-torque, spring-engaged, air-released brake. It serves as a redundant safety brake in the event of a mechanical defect in the drive line, particularly in the Z-axis. These brakes provide high accuracy for holding the position in power-off situations.
Ball Screw Brakes
The Nexen Ball Screw Brake is a high-torque, spring-engaged brake acting on the machined end of a ball screw. It serves as a primary or redundant safety brake to prevent back driving if a power loss or mechanical defect occurs in the driveline.
Shaft Brakes
Nexen's Shaft Brake has several bore sizes available, offering an off-the-shelf, zero-backlash braking solution for shaft-holding applications. These spring-engaged, air-released brakes offer outstanding holding for consistent, long-lasting performance.
Servomotor Brakes
Nexen’s Eclipse® spring-engaged, air-released servomotor brakes offer a powerful, high-torque and no-slip holding option. The Eclipse Servo Motor brake is installed between the motor and the linear device, providing improved safety with low inertia.
Gearheads
Nexen’s Harmonic Gearhead is the perfect combination of size and precision. When combined with Nexen’s Poller Pinion System, a true backlash-free solution from the motor to the driven load can be achieved. Machine designers will have up to a 70% reduction in length over standard gearheads, gaining increased space in a design.
Gearheads
Nexen’s Harmonic Gearhead is the perfect combination of size and precision. When combined with Nexen’s Poller Pinion System, a true backlash-free solution from the motor to the driven load can be achieved. Machine designers will have up to a 70% reduction in length over standard gearheads, gaining increased space in a design.
Gearheads
Harmonic Gearheads offer true zero backlash, high reduction ratios of 50/80/100/120:1, and high load capacity in a very compact package. Gearheads utilize the best cross-roller-bearing technology for the highest rigidity and load capacities.
Linear Motion Control
All Linear Motion Control
Roller Pinion Racks
Roller Pinion Racks
Linear Precision Brakes
Profile Rail Brakes
Rod Locks
Roller Pinion Racks
Nexen’s Roller Pinion System (RPS) patented rack and roller pinion design maintains high repeatable accuracy with zero backlash over longer distances with quieter operation - even at high speeds.
Roller Pinion Racks
Nexen’s Roller Pinion System (RPS) patented rack and roller pinion design maintains high repeatable accuracy with zero backlash over longer distances with quieter operation - even at high speeds.
Roller Pinion Racks
Nexen’s patented rack and pinion system with bearing-supported rollers engaging two rack teeth simultaneously, allowing for greater efficiency, longer life and outstanding accuracy.
Linear Precision Brakes
Nexen’s Profile Rail Brakes and Rod Locks are compact and powerful, delivering precision holding and locking at an affordable price.
Profile Rail Brakes
Nexen’s linear profile guide rail brakes use spring force to secure the load in holding applications. Superior response time and high force for stopping and holding in e-stop and power-off situations. Each rail brake clamps directly onto the guide rail to provide positive braking and holding in all axes, with no effect on bearing surfaces
Rod Locks
Nexen’s Spring Engaged, Air Released Rod Locks offer precision holding with guide rod systems and NFPA or ISO cylinders. A large clamping surface ensures consistent performance, ideal for accurate positioning.
Power Transmission
All Power Transmission
Clutches
Friction Clutches
Tooth Clutches
Friction Brakes
Rotary Brakes
Drum Brakes
Caliper Brakes
Friction Clutch-Brakes
Friction Clutch-Brakes
Torque Limiters
Pneumatic Torque Limiters
Mechanical Torque Limiters
Tension Control
Tension Control Brakes
Tension Control Clutches
Web Controls
Clutches
Multiple or single-position tooth clutches are positive engagement devices having open or nickel-plated, enclosed housings. Tooth clutch designs include a pilot-mount version (accepts sprockets or couplings), a flange-mount version that connects to bearing-supported devices and integral sprocket versions. Air-engaged tooth clutches produce up to 60,000 in-lbs. torque. Spring engaged tooth clutches, with up to 72,000 in-lbs. torque, are the ultimate holding device. Single and double-flex couplings, specifically designed for high-torque tooth clutches, are used for inline shaft connections.
Friction Clutches
Nexen’s single-disc, self-adjusting Clutches mount on a driving or driven shaft. They cover transmitted horsepower ratings from fractional to 25 hp, torque ratings to 5000 in-lb with thermal capacities to 2.5 thermal horsepower, and maximum operating speeds to 3600 rpm. Most are available in Sheave, Pilot, or Coupling Mount versions.
Tooth Clutches
Available in a variety of Single or Multiple Position Models, as well as a Sprocket Tooth design, there are Standard and Metric Models available. Most can be used with a Single or Double Flex Coupling Assembly for in-line coupling applications.
Friction Brakes
Friction brakes have a stationary pad (friction facing) and a rotating wear surface. Common configurations include drum brakes, caliper disc brakes and shaft-mounted brakes with an integral disc and rotor. Friction brakes provide controlled deceleration, stopping, holding, and tension control. Air and spring-engaged versions are available in all brake configurations.
Rotary Brakes
Air or spring-engaged, shaft-mounted friction brakes come with tapered bores to accept QD bushings or straight, bored and keyed-to-size disc hubs. Bushings are available to reduce the size of the standard, straight-bore models. Air-engaged brakes are used for stopping, holding, controlled deceleration, and tension control. Spring-engaged brakes are excellent stopping and holding devices. Multiple sizes provide torque up to 10,000 in-lbs.
Drum Brakes
Nexen's drum brakes are actuated with a diaphragm-sealed actuator that forces a brake shoe on a drum surface to provide the braking torque. Brake drums are bored and keyed to fit standard shafts. The brake shoes are clamped on the outside of the drum to provide brake torque up to 3750 in-lbs. Hinge top models offer a convenient feature to change rolls when the brake is used in tension control applications.
Caliper Brakes
Caliper brakes are used in controlled deceleration, cyclic stopping, holding, emergency stops, and tension control applications. Nexen offers a wide variety of caliper brake designs, including air actuated/spring-released, spring engaged/air-released, and spring engaged/hydraulic-released models. Several disc diameters up to 24-inches are offered to provide torque up to 50,000 in-lbs. Multiple calipers can be used on a single disc to increase torque and accommodate various disc thicknesses.
Friction Clutch-Brakes
Nexen’s Friction Clutch-Brakes combines the features of a Friction Clutch with a Friction Brake into a single unit. Standard models offer pilot mount, sheave mount and pilot mount with coupling half options. Pilot Mount units are available in various standard bores sizes with customization possible with bushings and couplings.
Friction Clutch-Brakes
Nexen’s Friction Clutch-Brakes combines the features of a Friction Clutch with a Friction Brake into a single unit. Standard models offer pilot mount, sheave mount and pilot mount with coupling half options. Pilot Mount units are available in various standard bores sizes with customization possible with bushings and couplings.
Friction Clutch-Brakes
Conveniently packaged clutches and brakes for a start and stop applications. Clutch-brake combinations have mounting features that make them adaptable to NEMA and IEC motor frames. All clutch-brakes operate on static air pressure.
Torque Limiters
A torque limiter protects mechanical equipment or its work from damage by mechanical overload. A torque limiter may limit the torque by slipping a friction plate clutch or disconnecting the load entirely. The action of a torque limiter is useful to limit any damage to the machine or product due to mechanical failures or product jams in the machine and is typically installed on the output side of gear reducers to protect the gear set.
Pneumatic Torque Limiters
Nexen’s pneumatically engaged, single-position torque limiters are the best overload protection devices available. The “TL” Series units are ball/detent clutches equipped with overload sensors.
Mechanical Torque Limiters
Nexen’s Torque Limiters protect the drive and driven components from damage associated with torque overloads caused by material jams, operator error, or various unforeseen reasons that pose a significant threat to machine downtime.
Tension Control
Precise tension control is vital to any web or strip-fed operation, and the product must be fed under tension, processed under tension and wound up again under tension. Tension controllers are an integral part of maintaining this set tension. Nexen tension controllers range from simple systems with diameter feedback (open loop) to dancer control systems and the highest precision systems using web tension sensor feedback (closed loop).
Tension Control Brakes
Nexen’s Tension Control brakes offer precise control over the full operating range – from the high torque needed to manage a large roll, to the lower torque requirements for more delicate materials and demanding applications.
Tension Control Clutches
Nexen's line of Modular Tension Control Clutches is designed to be the most flexible, maintenance-free pneumatic units available for continuous winding operations. Ruggedly built to endure the continuous drag and high heat load that tension control demands, yet extremely sensitive and responsive to a wide range of torque requirements.
Web Controls
Nexen’s Web Controllers are a closed-loop, load cell-based tension control products which use torque to control the tension of paper, film, foil, or fabric in all zones of web processing machines.
NexSafe™ Safety Certified
All NexSafe™ Safety Certified
Servomotor Brakes
Servomotor Brakes
Profile Rail Brakes
Profile Rail Brakes
Rod Locks
Rod Locks
NexSafe™ Safety Certified
NexSafe™ Functional Safety certified Rod Locks, Rail Brakes and Servomotor Brakes provide a verified, reliable solution that machine builders can depend on. With ISO 13849-1 Functional Safety Certification by Intertek©, these brakes are capable of Categories B through 4 and Performance Levels PLa through PLe. With spring-engaged air-released functionality, these products are default to lock, ideal for emergency stopping and holding applications.
Servomotor Brakes
NexSafe Safety Certified Servomotor Brakes are powerful, high-torque brakes installed between the servo motor and the gearbox. Multiple engagement springs, an integrated clamp collar with backup keyways, and up to three operating mode sensors for feedback ensure confident, safe emergency stopping and holding.
Servomotor Brakes
NexSafe Safety Certified Servomotor Brakes are powerful, high-torque brakes installed between the servo motor and the gearbox. Multiple engagement springs, an integrated clamp collar with backup keyways, and up to three operating mode sensors for feedback ensure confident, safe emergency stopping and holding.
Servomotor Brakes
Nexen’s Spring Engaged, Air Released Servomotor Brakes are available safety certified to comply with international safety standard ISO 13849-1. Category Level up to 4 and Performance Level up to e, can be achieved using NexSafe™ products in recommended configuration.
Profile Rail Brakes
Nexen’s Rail Brakes Series of linear profile guide rail brakes uses spring force to secure the load in holding applications. Superior response time, high force for stopping, and holding in e-stop and power-off situations. Each RB brake clamps directly onto the center of the guide rail to provide positive braking and holding in all axes, with no effect on bearing surfaces. These profile rail brakes hold position accurately by reducing drive train backlash and elasticity.
Profile Rail Brakes
Nexen’s Rail Brakes Series of linear profile guide rail brakes uses spring force to secure the load in holding applications. Superior response time, high force for stopping, and holding in e-stop and power-off situations. Each RB brake clamps directly onto the center of the guide rail to provide positive braking and holding in all axes, with no effect on bearing surfaces. These profile rail brakes hold position accurately by reducing drive train backlash and elasticity.
Profile Rail Brakes
Nexen’s Spring Engaged, Air Released Rail Brakes are safety certified to comply with international safety standard ISO 13849-1. Category Level up to 4 and Performance Level up to e, able to be achieved using NexSafe™ products in recommended configuration.
Rod Locks
Nexen’s Static Rod Locks deliver precision holding with virtually no backlash, providing high accuracy in demanding applications. These spring-engaged, air-released units come in both ISO and NFPA sizes. The Rod Lock’s large clamping surface ensures high clamping/holding force, and Nexen offers models for use on a pneumatic cylinder or as a stand-alone unit on a guide rod. The design is sealed and features a natural brushed aluminum finish or a corrosion-resistant, anodized finish.
Rod Locks
Nexen’s Static Rod Locks deliver precision holding with virtually no backlash, providing high accuracy in demanding applications. These spring-engaged, air-released units come in both ISO and NFPA sizes. The Rod Lock’s large clamping surface ensures high clamping/holding force, and Nexen offers models for use on a pneumatic cylinder or as a stand-alone unit on a guide rod. The design is sealed and features a natural brushed aluminum finish or a corrosion-resistant, anodized finish.
Rod Locks
Nexen’s Spring Engaged, Air Released Rod Locks are safety certified to comply with international safety standard ISO 13849-1. Category Level up to 4 and Performance Level up to e, can be achieved using NexSafe™ products in recommended configuration.

With superior performance, these spring-engaged, air-released units supplement air cylinders and guide rods for holding in power-off/e-stop situations. High clamping forces ensure positive holding with minimal air required for release.
Accessories
All Accessories
Pneumatic Control Accessories
Pneumatic Control Accessories
Linear Couplings
Linear Couplings
Pneumatic Control Accessories
Nexen offers a number of Pneumatic Accessories for our line of products.
Pneumatic Control Accessories
Nexen offers a number of Pneumatic Accessories for our line of products.
Pneumatic Control Accessories
Nexen offers a number of Pneumatic Control Accessories for our products that allow for easy connections, servicing, and trouble-free performance.
Linear Couplings
Nexen’s Linear Couplings protect valuable equipment by controlling misalignment in linear motors, ballscrew actuators, pneumatic cylinders, and rods or sensors.
Linear Couplings
Nexen’s Linear Couplings protect valuable equipment by controlling misalignment in linear motors, ballscrew actuators, pneumatic cylinders, and rods or sensors.
Linear Couplings
Nexen's Linear Coupling help prevent binding or premature wear, Providing zero backlash misalignment control between linear actuators, ballscrew actuators, pneumatic cylinders, and rods or sensors.
Resources
Contact

Rotary Brakes

About our Rotary Friction Brakes

Rotary Brakes have a hub/shaft and integral friction disc, and facing for ease of installation are available with either spring or air engagement and shaft, flange, or foot mounting styles.

Nexen has been producing industrial clutches, brakes, and web tension control products for over 50 years and remains the leader in pneumatic power transmission components worldwide. Millions of people see, touch or use items produced with equipment that requires one or more Nexen products daily.

Customers span every industry – from multinational corporations to small businesses – and range from design engineers to plant maintenance personnel. Regardless of industry or profession, the reason for using Nexen products remains the same: they are simple, durable, high-quality products our customers can trust.

Contact a Nexen Engineer

Resources & Videos

Rotary Brake Technical Data

Rotary Brake Application Examples:

Compare our Rotary Brakes

SPRING Engaged, SHAFT Mount


	SSE	TSE	SE
Torque	Maximum Static Brake Torque: up to 904 Nm [8000 in-lb]	Maximum Static Brake Torque: up to 904 Nm [8000 in-lb]	Minimum Static Brake Torque: up to 226 Nm [2000 in-lb]
Purpose	Shaft Mount Brake	Shaft Mount Brake	Motor Brake for NEMA C-Face Motors.
Braking	Power-Off Holding, High Cyclic Dynamic	Power-Off Holding, High Cyclic Dynamic	Power-Off Holding, Non-Cyclic Emergency Only Dynamic
Mounting Flange	Anti-Rotation: Slot for Optional Pin/Bracket. Brake Mounting: No Flange Mounting Allowed. Shaft Supports Brake.	Anti-Rotation: Slot for Optional Bracket. Brake Mounting: No Flange Mounting Allowed. Shaft Supports Brake.	Anti-Rotation: Optional Bracket Accessory. Brake Mounting: Two Flanges with Pilots. Shaft or Flange Supports Brake.
Hub	Keyed Female Through Bore	Keyed Female Through Bore	Keyed Female Through Bore
Available Hub Bore Diameters	1.375 up to 3.438 in, 20 to 100 mm	0.563 to 3.938 in, 19 to 80 mm	0.625 to 1.375 in
Housing	Open, Optional Guard	Open, Optional Guard	Open
Mounting Position	Can be Mounted in Any Position	Can be Mounted in Any Position	Not for Vertical Mount Applications

AIR Engaged, SHAFT Mount


	Micro & B-275 Clutches with Brake Adapter	S Brake	T Brake	DPB
Torque	Maximum Static Brake Torque: up to 11 Nm [100 inlbs]	Maximum Static Brake Torque: up to 1582 Nm [14000 inlbs]	Maximum Static Brake Torque: up to 1582 Nm [14000 inlbs]	Maximum Static Brake Torque: up to 4067 Nm [36000 inlbs]
Purpose	Shaft Mount Brake Made from a Micro or B-275 Clutch with a Brake Adapter to Fix the Output	Shaft Mount Brake	Shaft Mount Brake	Shaft Mount Brake
Braking	Holding, High Cyclic Dynamic, Slipping	Holding, High Cyclic Dynamic, Slipping	Holding, High Cyclic Dynamic, Slipping	Holding, High Cyclic Dynamic, Slipping
Mounting Flange	Anti-Rotation: Flange without Pilot, Slot for Pin/Bracket. Brake Mounting: Shaft Supports Brake.	Anti-Rotation: Slot for Optional Pin/Bracket. Brake Mounting: No Flange Mounting Allowed. Shaft Supports Brake	Anti-Rotation: Slot for Optional Pin/Bracket. Brake Mounting: No Flange Mounting Allowed. Shaft Supports Brake.	Anti-Rotation: Flange without Pilot. Brake Mounting: Shaft Supports Brake.
Hub	Keyed Female Through Bore	Keyed Female Through Bore	Tapered Bore to Accept Customer-Supplied QD Bushing	Tapered Bore to Accept Customer-Supplied QD Bushing
Available Hub Bore Diameters	0.375 in, 10 mm	1.000 to 3.438 in, 16 to 75 mm	0.563 to 3.938 in., 19 to 80 mm	2.375 to 4.000 in, 0.750 to 4.000 in (available)
Housing	Open	Open, Optional Guard	Open, Optional Guard	Open
Mounting Position	Can be Mounted in Any Position	Can be Mounted in Any Position	Can be Mounted in Any Position	Not for Vertical Mount Applications

SPRING Engaged, FOOT Mount, MOTOR or REDUCER Mount


	EMB	FMBES	FMBS	SE	FMBES-EM	MB
Torque	Min Holding Torque: 14 to 125 Nm [124 to 1106 in-lb]	Static Torque: 22.6 to 101.7 Nm [200 to 900 in-lb]	Min Static Torque: 122 to 203.4 Nm [1080 to 1800 in-lb]	Minimum Static Brake Torque: 1.3 to 226 Nm [100 to 2000 in-lb]	Static Torque: up to 101.7 Nm [900 in-lb]	Minimum Static Brake Torque: 50.8 to 293.8 Nm [450 to 2600 in-lb]
Purpose	Motor Brake for 0.5 to 20 hp NEMA TC Flange C-Face Motors as well as 0.25 to 7.5 kW IEC B5 Flange Motors	Motor Brake for 56 C to 215TC NEMA C-Face Motors	Ideal for High-Cycle Applications	Motor Brake for NEMA C-Face Motors.	Motor Brake for 56 C to 215TC NEMA C-Face Motors	Motor Brake for Double Shafted NEMA C-Face Motors
Braking	Power-Off Holding, Non-Cyclic Emergency Only Dynamic	Power-Off Holding, High Cyclic Dynamic	Power-Off Holding, High Cyclic Dynamic	Power-Off Holding, Non-Cyclic Dynamic	Power-Off Holding, High Cyclic Dynamic	Power-Off Holding, Non-Cyclic Dynamic
Input Side Flange	NEMA & IEC Flange with Pilot	NEMA or IEC Flange with Pilot. Optional Foot Mount Accessory.	NEMA or IEC Flange with Pilot. Optional Foot Mount Accessory.	NEMA or IEC Flange with Pilot. Optional Foot Mount Accessory. Optional Anti-Rotation Bracket Accessory.	NEMA or IEC Flange with Pilot.	NEMA or IEC Flange with Pilot
Output Side Flange	NEMA or IEC Flange with Pilot	NEMA or IEC Flange with Pilot. Optional Foot Mount Accessory	NEMA or IEC Flange with Pilot. Optional Foot Mount Accessory.	NEMA or IEC Flange with Pilot. Foot Mount Accessory. Optional Anti-Rotation Bracket Accessory.	None	None
Input Side of Hub	Keyed Female Bore with Set Screw. Keyed Female Bore with Clamp Collar Available.	Keyed Female Bore with Set Screw	Keyed Female Bore with Clamp Collar	Keyed Female Through Bore. No Set Screw.	Keyed Female Bore with Set Screw	Keyed Female Through Bore with Set Screw. Note: Brake and Hub are Ordered Separately
Output Side of Hub	Keyed Male Output Shaft	Keyed Male Output Shaft	Keyed Male Output Shaft	None. Optional Output Shaft Accessory	None	None
Available Input Bore/Output Shaft Diameters	0.625 to 1.625 in, 14 to 38 mm	0.625 to 1.375 in	0.875 to 1.625 in	0.625 to 1.375 in	0.625 to 1.375 in	0.500 to 1.875 in
Housing	Enclosed	Enclosed, with corrosion resistance & water protection	Open, Optional Guard	Open	Enclosed, with corrosion resistance & water protection	Enclosed
Mounting Position	Can be Mounted in Any Position	Can be Mounted in Any Position	Can be Mounted in Any Position	Not for Vertical Mount Applications	Can be Mounted in Any Position	Not for Vertical Mount Applications
Manual Release	None	Manual Release Feature	None	Manual Release Feature	Manual Release Feature	None

AIR Engaged, FOOT Mount, MOTOR or REDUCER Mount


	MBU
Torque	up to 248 Nm [2,198 in-lb]
Purpose	Motor Brake for 0.5 to 10 hp NEMA TC Flange C-Face Motors
Braking	Holding, High Cyclic Dynamic, Slipping
Input Side Flange	NEMA or IEC Flange with Pilot. Optional Foot Mount Accessory, Optional MIU Input Adapter.
Output Side Flange	NEMA or IEC Flange with Pilot. Optional Foot Mount Accessory
Input Side of Hub	Keyed Female Bore. Keyed Male Output Shaft as an Accessory
Output Side of Hub	Keyed Output Shaft
Available Input Bore/Output Shaft Diameters	0.625 to 1.375 in
Housing	Open, Optional Guard
Mounting Position	Can Be Mounted in Any Position

SPRING Engaged, FLANGE Mount Brakes


	ZSE	DFB & QFB
Torque	Minimum Static Brake Torque: up to 300 Nm [2,655 in-lb]	Maximum Static Brake Torque: up to 18,620 Nm [164,800 in-lb]
Purpose	Flange or Housing Mounted Brake, Zero Backlash	Flange or Housing Mounted Brake
Braking	Power-Off Holding, Non-Cyclic Emergency Only Dynamic	Power-Off Holding, Non-Cyclic Dynamic
Mounting Flange	Anti-Rotation: Flange without Pilot. Brake Mounting: Flange without Pilot Supports Brake.	Anti-Rotation: Flange with Pilot. Brake Mounting: Flange with Pilot Supports Brake, no Bearings
Hub	Keyed Female Through Bore with Clamp Collar	Keyed Female Through Bore, or Keyless Blank Female Through Bore
Available Hub Bore Diameters	0.500 to 2.938 in, 25 to 75 mm	1.000 to 5.438 in
Housing	Open	Open
Mounting Position	Can be Mounted in Any Position	Not for Vertical Mount Applications

AIR Engaged, FLANGE Mount Brakes


	4H with Flange Output Clutch with Brake Adapter	DFE & QFE
Torque	Maximum Static Brake Torque: up to 1,130 Nm [10,000 inlbs]	Maximum Static Brake Torque: up to 34,121 Nm [302,000 in-lb]
Purpose	4H Clutch with Flange Brake Adapter to Fix the Output. No Output Bearing.	Flange or Housing Mounted Brake
Braking	Holding, High Cyclic Dynamic	Holding, Non-Cyclic Dynamic
Mounting Flange	Anti-Rotation: Flange without Pilot. Brake Mounting: Shaft Supports Brake. Output Flange Supports Output. No Bearings in Output.	Anti-Rotation: Flange with Pilot, Brake Mounting: Flange Supports Brake, no Bearings.
Hub	Keyed Female Through Bore	Keyed Female Through Bore, or Keyless Blank Female Through Bore (Requires Finish Machining)
Available Hub Bore Diameters	0.875 to 2.188 in, 25 to 40 mm	1.000 to 6.500 in
Housing	Open	Open
Mounting Position	Can be Mounted in Any Position	Not for Vertical Mount Applications

Required Components and Accessories for our Rotary Brakes

Listed below are some of the Required Components and Accessories for Rotary Brakes. Use the filters above to find the complete list of Required Components and Accessories on the product page.

Required Components

3-Way Valve

Accessories

Motor Brake Adapters
Guards
Torque Pin Brackets
Torque Arms
Control Kits
Filters
Flow Control Valves
Lubricator
Mufflers
Quick Exhaust/shuttles
Regulators
Restrictor Valves
Dancer Controllers
Diameter-Based Tension Controls
Load Cell-Based Tension Controls
Adapter Shafts
Output Drive Units
Mounting Adapters
Input Units

Applications

Nexen's Rotary Brakes are easy to install and are integral in applications that need:

Accurate positioning
Controlled deceleration
Cycling/Indexing
Stopping/Holding
Unwind tension control

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Help with your application

Note: The technical data on this website is subject to change without notice. Please contact Nexen for help with your application, appropriate sizing, and configuration.

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Rotary Motion Control

Rotary Indexers

Rotary Indexers

Rotary Indexers

Roller Pinion Gears

Geared Bearings

Gears

Precision Brakes

Ball Screw Brakes

Shaft Brakes

Servomotor Brakes

Gearheads

Gearheads

Gearheads

Roller Pinion Racks

Roller Pinion Racks

Roller Pinion Racks

Linear Precision Brakes

Profile Rail Brakes

Rod Locks

Clutches

Friction Clutches

Tooth Clutches

Friction Brakes

Rotary Brakes

Drum Brakes

Caliper Brakes

Friction Clutch-Brakes

Friction Clutch-Brakes

Friction Clutch-Brakes

Torque Limiters

Pneumatic Torque Limiters

Mechanical Torque Limiters

Tension Control

Tension Control Brakes

Tension Control Clutches

Web Controls

NexSafe™ Safety Certified

Servomotor Brakes

Servomotor Brakes

Servomotor Brakes

Profile Rail Brakes

Profile Rail Brakes

Profile Rail Brakes

Rod Locks

Rod Locks

Rod Locks

Pneumatic Control Accessories

Pneumatic Control Accessories

Pneumatic Control Accessories

Linear Couplings

Linear Couplings

Linear Couplings

Engagement Method

Mounting Style

About our Rotary Friction Brakes

Required Components and Accessories for our Rotary Brakes

Applications

More Information