CAT 237-5474 Brake Pedal Roller

CAT 237-5474 is a Caterpillar genuine single-flange track roller (bottom roller) for use with the tracked travel systems of mini excavators/skid steer loaders. The following are precise original specifications and application information, excluding replacement Cat® parts…

Core Technical Parameters

Item Details
Part Model CAT 237-5474 (Single Flange Track Track Roller)

Product Type: Single flange track track roller, integrating roller body, shaft, seal ring, and grease chamber, suitable for rubber track/steel track systems

Material: Roller body is 42CrMo alloy forged steel, hardened to 52–56 HRC; shaft is 40Cr tempered steel, hardness 28–32 HRC; seal ring is nitrile rubber (NBR), suitable for engineering machinery operating conditions

Key Dimensions: Roller diameter 120 mm (4.724 in), mounting width 156.4 mm (6.157 in), shaft diameter 38 mm, flange diameter 145 mm, fillet radius r=3 mm

Rated Parameters: Rated static load 120 kN, suitable operating temperature -25℃ ~ +100℃, maximum linear speed 2.5 m/s, grease capacity 0.25 L
Unit Weight Approximately 4.2 kg (9.259 lbs)

Tolerances: Roller diameter tolerance h6, shaft diameter tolerance m6, surface roughness Ra ≤ 1.6 μm, radial runout ≤ 0.1 mm

Lubrication: Pre-filled with extreme pressure lithium-based grease (NLGI 2), with a built-in sealing system to prevent mud and water intrusion and ensure long-term lubrication effectiveness.

Structure and Core Features:

Single flange positioning structure: The flange is used for track guidance to prevent track deviation, suitable for small equipment with compact track spacing, improving walking stability, and suitable for light-duty operations such as municipal and landscaping applications (Cat®…).

Alloy forged steel roller body: 42CrMo forged steel is quenched to improve surface hardness and wear resistance, withstands radial loads transmitted by the track, and is suitable for frequent start-stop and vibration conditions.

Integrated sealing and lubrication: Nitrile rubber sealing ring + dust lip design effectively isolates external impurities; pre-filled grease ensures long-term lubrication and reduces maintenance frequency.

Integrated Shaft Design: The 40Cr tempered steel shaft provides sufficient support strength and has a clearance fit with the roller body, ensuring smooth rotation and reducing friction loss.

Compatible Models and Application Scenarios

Compatible Equipment: CAT 301.7CR/302.7CR mini excavators, 226B3/242D skid steer loaders, and other small tracked equipment.

Core Purpose: Supports equipment weight, reduces friction between tracks and the ground, guides track movement, and ensures smooth and efficient operation of the walking system. Suitable for light-load working environments such as municipal engineering, landscaping maintenance, and small-scale infrastructure construction.