BRAKE, CALIPER DISC 109528 for TDS11SA Gearbox Motor Assembly Introduction

Comprehensive Guide to the BRAKE, CALIPER DISC 109528 for TDS11SA Gearbox Motor Assembly

Introduction

The TDS11SA top drive drilling system, manufactured by Varco (now NOV), is one of the most widely used top drive systems in the oil and gas industry. With a rated load capacity of 500 tons and continuous torque output of 37,500 ft-lb at 125 rpm, this system delivers the power and reliability required for demanding drilling operations. At the heart of its braking system lies the BRAKE, CALIPER DISC 109528, a critical component that ensures safe and precise control.

Two hydraulic caliper disc brakes are mounted to the top end of each motor on the TDS11SA, serving to hold torque in the drill string and assist in positioning during directional work. This article provides a comprehensive overview of the 109528 brake caliper assembly and its replacement components, available through Evergrow under part number 164292.

Overview of the 109528 Brake Caliper Assembly

The 109528 ASSY CALIPER DISC BRAKE is specifically engineered for the TDS-11SA top drive system used in oil drilling rigs. This caliper features high-quality construction and a lightweight design(less than 10 kg), ensuring reliable performance in the demanding environments of oil and gas drilling industries.

Complete Component Breakdown

The 109528 brake caliper assembly consists of seven key components. Below is the complete parts list with both OEM and Evergrow part numbers for easy reference:

Component Details

1. Caliper, Disc Brake (109528 / 164292)

The main caliper body houses all braking components and provides the structural framework for the braking system. It must be inspected regularly for visible damage, corrosion, or leaks around the seals.

2. Friction Pads (109528-1 / 164292-1)

These are the consumable friction materials that create the necessary resistance against the brake disc (rotor) to slow down or stop the equipment. Two pads are required per caliper. Regular inspection of pad thickness is essential- pads below the minimum specification must be replaced immediately.

3. Seal Kit (109528-2 / 164292-2)

The seal kit contains all necessary seals to prevent brake fluid leakage and maintain hydraulic pressure within the caliper. Inspect seals for cracking, breakage, punctures, or aging.

4. Heavy Duty Spring (109528-3 / 164292-3)

Four heavy-duty springs are required per caliper. These springs ensure proper return action of the brake pads after braking pressure is released.

5. Screw, Return Spring (109528-4 / 164292-4)

Four return spring screws secure the heavy-duty springs in place, ensuring consistent spring tension and proper pad retraction.

6. Guide Pin (109528-5 / 164292-5)

Four guide pins allow the caliper to slide smoothly during engagement and release. If the caliper sticks on its guide pins, lubrication or replacement may be necessary.

7. Bleeder Valve (109528-6 / 164292-6)

The bleeder valve allows for the removal of air from the brake hydraulic system during maintenance and bleeding procedures.

Maintenance and Inspection Guidelines

Proper maintenance of the disc brake caliper is essential for safe and efficient drilling operations. The following inspection procedures are recommended:

Visual Inspection:

Check brake pad thickness- pads should be above the minimum thickness specification

Inspect the caliper for visible damage, corrosion, or leaks around seals

Examine the disc brake rotor surface for scoring, cracking, or warping

Caliper Function Check:

Verify that the caliper slides smoothly along its guide pins

Check piston movement- pistons should move in and out freely

Evergrow: Your Trusted Source for TDS11SA Brake Components

Linhai Evergrow Petroleum Equipment Co., Ltd. is a leading supplier of spare parts for NOV top drives, including the TDS11SA and TDS9SA models. With a focus on quality and reliability, Evergrow offers the complete 109528 brake caliper assembly and all its replacement components under the 164292 series part numbers.

Based in Xi'an, China, Evergrow serves customers across the USA, Russia, the Middle East, Turkey, and other global markets. Their product range extends beyond top drive parts to include complete pumps and spare parts for NOV Mission/MCM centrifugal pumps, as well as Canrig top drive parts.

Conclusion

The BRAKE, CALIPER DISC 109528 is an indispensable component of the TDS11SA gearbox motor assembly, providing the braking force necessary for safe and precise drilling operations. Whether you need a complete caliper assembly (164292) or individual replacement parts-from brake friction pads (164292-1) to bleeder valves (164292-6)-Evergrow offers comprehensive coverage for all your TDS11SA brake system needs.

Regular inspection and timely replacement of brake components are essential to maintain the safety, efficiency, and reliability of your top drive system. With Evergrow's quality parts and global supply capability, you can keep your drilling operations running smoothly with minimal downtime.

For more information or to place an order, contact Evergrow at:

Address: #11 Tangyan South Road, High-tech Zone, Xi'an, China

Phone: +86-18991929885

Email: sales@linhaievergrow.com

WhatsApp: +86-18991929885