Cam Followers

Cam followers, also known as cam rollers, cam follower bearings, or track followers, are a type of specialist roller bearing used in mechanical cam and roller track systems. They are designed to run directly on cams, rails, or tracks and are commonly used to guide or support moving machine elements. In cam mechanisms, cam followers enable controlled motion transfer by following a predefined cam profile.

Cam followers are commonly used in industries such as manufacturing, automation, packaging, and material handling. They are integral to machinery including conveyor systems, automated assembly lines, robotic arms, and cam-driven equipment, where consistent motion, load capacity, and operational reliability are essential.

Operating Principle of Cam Followers

Cam followers operate by rolling along a cam profile or track surface, maintaining continuous contact through a hardened outer ring. As the cam rotates or the track moves, the cam follower guides or supports motion according to the defined mechanical path.

Internal rolling elements reduce friction between the outer ring and the inner race, allowing the cam rollers to carry radial loads efficiently while minimising wear. Depending on the design, cam followers may also accommodate limited axial loads and minor misalignment, supporting reliable operation in repetitive or high-cycle motion systems.

Integrated seals and factory-applied lubrication help protect the cam follower bearing from contamination and retain lubricant during operation. These features are particularly important in automated and continuous-duty environments, where consistent performance and long service life are required.

Types of Cam Rollers

Cam rollers are available in a variety of types designed to suit different mechanical applications and load requirements. Cam rollers can generally be categorised by mounting style or internal rolling elements:

By Mounting Style

• Stud Cam Followers: Stud cam followers feature a cylindrical outer ring mounted on a threaded stud, allowing direct installation into machine frames or levers. They are widely used in conveyors, cam-driven systems, and automated equipment where space-saving installation and easy adjustment are required. Stud sizes, stud lengths, and internal bearing designs vary depending on load and application requirements.
• Yoke Cam Followers: Yoke cam followers have a central bore and are mounted on a shaft or bolt, typically secured with washers or retaining rings. This design supports higher radial loads than stud types and is commonly used in presses, material handling systems, and heavy-duty track-guided applications where rigidity and reduced bending stress are critical.

By Internal Rolling Elements

• Needle Roller: Cam rollers with long, thin rollers for high load capacity in compact designs. Found in robotics, packaging machinery, and space-constrained applications.
• Ball Bearing Cam Followers: Uses steel or ceramic balls to reduce friction and allow smooth rotation. Perfect for high-speed, low-load applications like assembly lines.
• Cylindrical Roller: Cam rollers with cylindrical rollers providing greater contact area for heavy loads. Widely used in industrial machinery, presses, and conveyors for durability and high radial capacity.

Industrial Applications of Cam Follower Rollers

Cam follower rollers are critical components in machinery that convert rotary motion into linear motion. Their robust design and variety of configurations make them suitable for a wide range of industrial applications.

• Manufacturing Production Lines: Cam followers are widely used in automated production lines, including assembly robots, stamping presses, and conveyor systems. They ensure precise motion control, durability, and smooth operation in high-speed manufacturing environments.
• Food and Beverage: In food and beverage processing, cam followers facilitate motion in packaging machines, conveyor belts, and bottling equipment. Stainless steel or corrosion-resistant variants with sealed designs are often selected to meet hygiene requirements and withstand washdown environments.
• Aerospace: Aerospace applications demand extreme precision and reliability. Cam followers are employed in flight simulators, testing rigs, and manufacturing equipment to handle complex motion while maintaining tight tolerances.
• Logistics and Warehousing: Automated storage and retrieval systems, conveyor networks, and sorting machines benefit from cam followers for smooth, accurate motion. They support high-load operations and reduce maintenance needs in continuous-use systems.
• Construction and Mining: Heavy-duty cam followers are used in construction and mining machinery, including cranes, excavators, and material handling equipment. Their strength and durability allow them to operate reliably under harsh conditions and high radial loads.

Key Specifications to Consider When Choosing Cam Followers

When shopping for cam followers or cam rollers, make sure you look at these specifications to select the appropriate unit for your application.

• Dimensions: Dimensions of the cam follower such as outer diameter, outer ring width, stud diameter or bore size, and overall length must match the available mounting space and track geometry to ensure correct load distribution and stable operation.
• Load Ratings: Load ratings, including dynamic and static radial capacity, define the cam follower’s suitability for continuous motion, intermittent loading, or shock loads. These ratings should be evaluated alongside operating speed and duty cycle.
• Sealed vs Unsealed Design: Sealing and lubrication options influence performance in contaminated or humid environments. Sealed designs help extend the service life of the cam follower, while lubrication type and relubrication capability affect the frequency of maintenance required.
• Material: Material and surface treatment choices, such as carbon steel or stainless steel construction and protective coatings, should be selected based on corrosion exposure, cleaning processes, and operating conditions.

How to Order Cam Followers in Singapore

Find the right cam followers in Singapore for industrial machinery, automation systems, or manufacturing equipment. At RS, we provide high-quality cam rollers from trusted suppliers and manufacturers such as INA, SKF, and NTN. Explore our catalogue to source cam followers, ball bearings, and dial indicators for precise motion control, accurate alignment, and smooth operation across a wide range of mechanical and industrial applications.

Ordering is straightforward. Select the cam followers and accessories you need, add them to your basket, and complete your purchase securely online. For full details on delivery times, costs, and coverage across Singapore, refer to our Delivery Information page.