CAT 626-4512 GUIDE-ROD 06

CAT 626-4512 (6264512) is a Caterpillar original guide rod (GUIDE-ROD 06), suitable for guiding and positioning reciprocating motion components such as hydraulic cylinders and linkage mechanisms. The following is purely precise information (no additional description):

Core Parameters and Information

Item Details
Part Model: CAT 626-4512 Guide Rod (GUIDE-ROD 06)

Part Type: Reciprocating motion guide rod, used for guiding hydraulic cylinder pistons and positioning linkage mechanisms, bearing radial loads, and limiting axial movement.

Material: 42CrMo alloy structural steel, overall heat treatment, hardness HRC 28-32, chrome-plated surface, thickness 0.05-0.10 mm, hardness HV 800-1000, rust-proof and wear-resistant.

Key Dimensions: Diameter 25.40 mm (1.000 in), length 127.00 mm (5.000 in), threads M16×1.5 at both ends, thread length 15.00 mm. mm, guide section length 97.00 mm, chamfered ends 1×45°

Structural Features: Single-rod structure, one end externally threaded, one end smooth guide surface, chrome-plated, suitable for bushing/sleeve fit, used for reciprocating motion guidance

Compatible Structures: Hydraulic cylinder piston guide rod, loader boom linkage guide rod, excavator stick cylinder guide rod, grader blade control rod guide rod

Applicable Working Conditions: Suitable for -40℃ to 120℃, suitable for reciprocating speed ≤0.5 m/s, radial load ≤8 kN, suitable for intermittent reciprocating motion conditions

Compatible Models and Assemblies:

Loaders: CAT 930M, 938M (boom cylinder piston guide assembly, steering cylinder linkage guide assembly)
Excavators: CAT 315GC, 317GC (stick cylinder piston guide assembly, swing mechanism linkage guide assembly)
Graders: CAT 120M, 140M (Shovel control cylinder guide assembly, steering tie rod guide assembly)
Road Roller: CAT CS66B, CS76B (Vibration cylinder piston guide assembly, travel mechanism connecting rod guide assembly)
Compatible Assemblies: CAT 930M boom cylinder assembly, 315GC stick cylinder assembly, 120M blade control cylinder assembly
Installation and Fitting Points:
The guide rod and bushing inner diameter should have a clearance fit of 0.015-0.030 mm to ensure smooth reciprocating motion.

Threaded connection torque: 65-75 N·m. Apply thread-locking adhesive (Loctite 243) to the thread surface to prevent loosening.

Before installation, clean the guide rod surface and mating parts, ensuring no burrs, oil stains, or rust. Check for peeling or scratches on the chrome plating.

After installation, the coaxiality of the guide rod and mating parts should be ≤0.02 mm, with no jamming during reciprocating motion and no abnormal noise.