Stafford Hinge Shaft Collars provide the same holding power as standard two-piece collars but feature a triple-link hinge and a captive clamping screw to eliminate parts, fumbling, and lost screws. Designed for easy installation in tight spaces, these hinged shaft collars are also ideally suited for applications requiring frequent repositioning and maintenance.

Available in steel and two grades of stainless steel (including clamping screw), Hinge Collars are offered in 25 sizes from 3/8" to 4" I.D. and 16 metric sizes from 6 mm to 50 mm. They have a smooth bore for protecting expensive shafts, will not crush thin-wall tubing, and have the same axial holding power as conventional collars.

Hinge Shaft Collars are also available as custom designs built to your specifications.

WM Berg stocks a vast array of bearings to suit every design need, such as: The Ball, Needle Roller, Sintered bronze, Oil-less, Teflon, Thermoplastic, Thrust, Roller Thrust, Spherical and Linear ball.

Sizes range from 1/8" (3mm) to 1" (25mm) diameter. Ball Bearings are offered in ABEC-0 through ABEC-7 qualities. Our shafting can be obtained in inch or metric, threaded, with rough cut, saw cut or machined ends, made to any length within 1/16" and special end configurations upon request.

We carry Split Hub, Shaft, Threaded Shaft, and Squeeze Clamps in assorted sizes. Our Gear, Sprocket, Dial, Dual Gear, and Phase Adjustable Hubs are available in both pin and clamp hub styles.

About Berg:

Since 1967, W.M. Berg has consistently set the standard of excellence as the world's leading provider of miniature precision mechanical components. Started as a privately-held family business, Berg is now part of Rexnord Industries, a world leader in controls and automation.

W.M. Berg always has one goal in mind: to furnish the products and information you need, when you need them, with the quality you expect.

• Most standard product in quantities up to 25 pieces are available in 1-2 days.
• Most custom product in quantities up to 25 pieces are available in 2-4 weeks.
• Our on-time delivery to customer want date is currently better than 95%.
• Customer service available from 8AM – 8PM EST.

Please click on the links to the right for more information or request a quote today!

Thrust Bearings

Precision thrust ball bearings allow smooth rotation under high axial loads and low speeds. Both rings and balls are manufactured from 52100 chrome steel and oil-lubricated to ensure low friction operation and long life. Ball cages are manufactured from brass or stainless steel. For applications that require high axial loads and relatively low speeds.

Collar Bearings

Clamp type collar has split extended inner on one side and removable collar with setscrew for easy clamping to shafts. Double rubber seals assure maximum protection for the bearing. Permanently grease-lubricated for long life. Manufactured from 52100 chrome steel. Meets industry standard ABEC 1 specifications (except for bore).

Dynaroll Corporation is a worldwide leader in high precision ball bearings and bearing related sub-assemblies for use in medical devices, medical robotics, surgical equipment, office products, automotive, semi-conductor, and many other industries. At Dynaroll we pride ourselves on excellent customer service, quality, on-time delivery, and economical solutions to precision bearing-based applications. Dynaroll has an extensive state-of-the-art inspection lab and testing lab to ensure the highest quality bearings.

Our capabilities include:

• Precision Bearings and Sub-Assembly Design
• Bearing Selection
• Mounting and Fitting
• Precision Tolerances
• Torque Testing & Bearing Analysis
• Re-Lubrication Facilities

E mail us to request an electronic pdf of specs/dimensions/drawings, or click on the Product Details web link on the right

Flangette ball bearings are easy to mount, permanently grease-lubricated for long life, and protected with double rubber seals. This clamp type bearing has split extended inner on one side and removable collar with setscrew for easy clamping to shafts.

Manufactured from 52100 chrome steel. Flange is two-piece stamped steel casing over a spherical O.D. collar ball bearing. Meets industry standard ABEC 1 specifications (except for bore).

ISO QUALITY Certifications

• ISO 9001:2000
• ISO 13485:2003
• ISO 14001:2004
• OSHAS 18001:1999
• PPAP
• FDA Critical

Dynaroll Corporation

is a worldwide leader in high precision ball bearings and bearing related sub-assemblies for use in medical devices, medical robotics, surgical equipment, office products,automotive, semi-conductor, and many other industries. At Dynaroll we pride ourselves on excellent customer service, quality, on-time delivery, and economical solutions to precision bearing-based applications. Dynaroll has an extensive state-of-the-art inspection lab and testing lab to ensure the highest quality bearings.

To learn more click on the web link on the right or e mail us your inquiries

Nexen has a family of servo motor brakes that are spring-engaged and equipped with a split hub, clamp collar for attachment to the servo motor shaft. With superior torque outputs, these brakes provide rugged durability for dynamic stopping applications. Nexen's servo motor brakes offer consistent long-lasting performance with no maintenance needed. The servo motor brakes deliver at least 20-50% more torque than competitive brakes and provide safe, simple operation.

The easy-to-use, flange-mounted Nexen servo motor brakes solve many of the problems associated with brake motors. Use them with standard motors for brake motor functionality and off-the-self availability. Nexen offers servomotor brakes in a variety of input and output flange/shaft combinations, all designed to increase the safety of your machines.

Features and benefits include:

• Simple installation with split hub, shaft collar

• Spring engaged, air released

• True pilot mounting

• High torque when compared to electric brakes

• Zero backlash for precision holding

• Bidirectional braking

• Long facing life

• Cool operation, high efficiency, less energy consumption

• Designed for horizontal or vertical applications

• Strong enough to stall a servomotor

• Quick, safe emergency stopping and holding

• Remains engaged and holds load during motor change-outs

• Ideal for use with linear ball-screw stages and belt drives

• Field serviceable

• Low inertia

• Output flange replicates motor flange

• Quick exhaust valve included

• High torsional rigidity

• High overhung load capacity

• Meets IP67 dust and waterproof standards

Dynapar announces the introduction of the M53, a modular commutation encoder with low profile for easy mounting onto stepper and servo motors. The encoder also features a high 120^oC temperature rating that won't limit motor performance, allowing manufacturers to keep from de-rating torque specs. Unlike some competitive modular encoders, the M53 features a direct-read phased array ASIC that provides 2500 PPR (Pulses Per Revolution). The M53 is also available with commutation tracks for 4, 6, or 8 pole brushless motors.

Compact Modular Design

Unlike traditional modular encoders that require special tools or shims for gapping the encoder disc, the M53 uses an innovative built-in gapping mechanism that requires no special tools or parts that can get lost or damaged. The compact mounting depth is made possible through the use of surface-mount components along with the custom ASIC. With an industry-standard Size 21 mounting pattern the encoder is perfectly suited for use on NEMA 23 and 34 size motors. When ordered with the low-profile cover, the encoder is rated for IP50 environmental protection.

Easy Motor Integration

With the ability to accommodate motor shafts from ¼ to ½-inch including metric sizes, the M53 is suitable for use with a variety of motors. A split-collar hub and up to 30 degrees of housing rotation for index or commutation alignment make for quick and easy motor installation, and the choice of cable or connector termination makes the M53 even more flexible for the motor user.

Price and Availability

The M53 commutation encoder is built to order and immediately available for the general market. List pricing starts at $159. For custom OEM applications and volume pricing, contact a Dynapar representative at 800-873-8731.