Cam-Slider Combination Bearing

Cam-Slider Combination Bearing

A patented bearing design that integrates the inner and outer rings of a deep groove ball bearing with crank-slider mechanism components (connecting rod and eccentric cam) into a single precision-machined unit. The world's first bearing of this type, now the preferred choice of market-leading embroidery machine manufacturers across Asia, Europe, and the Americas — delivering higher speed, greater load capacity, and lower noise than any conventional solution.

• Structure: Deep groove ball bearing + connecting rod + eccentric cam, integrated
• Speed Gain: ≥70% higher max RPM vs. needle roller bearing solution
• Contact Type: Ball (point contact) — low friction, low heat
• Wall Thickness: Thicker rings than thin-wall bearings — no fatigue failure
• Ball Size: Enlarged rolling elements — significantly higher load capacity

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Speed Without Compromise

The Cam-Slider Combination Bearing uses ball-type rolling elements (point contact), which generate significantly less friction than needle rollers (line contact). In verified applications, maximum operating speed increased by over 70% compared to conventional needle roller bearing setups — allowing equipment to run faster while consuming less energy and producing less heat.

In traditional crank-slider designs using needle roller bearings, the high friction from line contact creates a speed bottleneck. Equipment operating speed is limited by the bearing, and prolonged operation leads to excessive heat buildup and noise.

Higher Load, Longer Life

By integrating the bearing rings with crank-slider components, the inner and outer rings achieve sufficient wall thickness and structural rigidity. Combined with enlarged rolling elements (balls), load capacity is significantly increased compared to thin-wall bearing solutions — directly extending service life and reducing maintenance cycles.

Thin-wall deep groove ball bearings commonly used in crank-slider mechanisms have thin rings that are prone to metal fatigue under cyclic loading. Their small rolling elements also limit load capacity and impact resistance, resulting in shorter service life and frequent replacement.

Quieter, Cooler Operation

Point contact between balls and raceways produces substantially less friction than needle roller line contact. This means lower operating temperatures, reduced noise levels, and less energy consumption — enabling equipment to run longer without overheating and creating a better working environment.

Needle roller bearings in crank-slider assemblies generate considerable friction heat during continuous operation. This not only limits runtime and accelerates lubricant degradation, but also contributes to elevated noise levels that affect the overall equipment experience.