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Oct . 13, 2025 12:45 Back to list

CKZ-C Series Wedge type One Way Clutch Bearing | High Torque


Why Wedge-Type One-Way Clutch Bearings Still Matter in 2025

If you run conveyors, sorters, or compact gearboxes, you know the quiet heroes are the clutches. The CKZ-C Series Wedge type One Way Clutch Bearing is one of those components that just has to work—no drama. And, to be honest, that’s exactly why engineers keep specifying wedge/sprag-style units: high torque density, low backlash, and simple integration.

Origin: No. 3, Area B, Bearing Industry Mass Entrepreneurship Park, Beihuan Road, Linxi County, Xingtai City, Hebei Province
CKZ-C Series Wedge type One Way Clutch Bearing | High Torque

What it is (and why it’s different)

The DC type is a wedge retainer one-way clutch bearing—without an inner ring and without an outer ring—meant to run directly on your shaft and in your housing. That’s lean. It saves space, cuts bill-of-materials, and—surprisingly—can lower inertia in fast indexing. In practice, the wedges lock the rotation in one direction and overrun freely in the other. Many customers say it’s a “fit-and-forget” backstop for light-to-medium duty conveyors.

Industry snapshot

Two trends keep popping up: compactness (AGVs, micro-fulfillment conveyors) and maintenance-light designs. Wedge clutches hit both: high torque per millimeter and simple grease lubrication. In fact, several OEMs are standardizing on CKZ-C Series Wedge type One Way Clutch Bearing units for retrofit kits because the no-ring format adapts to existing shafts.

Typical technical specs

TypeDC wedge retainer, no inner/outer rings
Torque capacity (approx.)≈10–450 N·m depending on size; real-world use may vary
Overrunning speedUp to ≈6,000 rpm (application- and lubrication-dependent)
BacklashLow; typically ≤0.2–0.4°
Operating temperature-20 to 120 °C (grease), consult for higher
MaterialsGCr15/100Cr6 bearing steel; wedge cage in steel or PA66
Hardness≈HRC 60–64 (raceways/wedges)
Service life (indicative)L10 10,000–20,000 h per ISO 281 assumptions
ComplianceISO 9001, RoHS; fits ISO mounting practice

Process flow and quality

  • Materials: vacuum-degassed GCr15 (ASTM A295 52100 equivalent); spring steel for wedge energizers.
  • Heat treatment: through-hardening, sub-zero stabilization; target hardness verified per ISO 6508-1.
  • Grinding: precision OD/ID and wedge contact profiles; micro-finish for consistent locking.
  • Assembly: controlled preload on wedges; cleanliness-focused assembly area.
  • Testing: torque hold test (sample lot), overrunning drag, runout, and dimensional checks (ISO fits).
  • Life methodology: ISO 281 for bearing elements, ISO 76 for static conditions; application duty cycles adjusted.

Where it’s used

Backstopping on inclined conveyors, indexing tables, light gearbox overrunning, carton packaging lines, textile winders, and small e-mobility drivetrains. One integrator told me their sorter downtime dropped after switching to CKZ-C Series Wedge type One Way Clutch Bearing because “it just doesn’t slip under shock.”

Vendor snapshot (informal comparison)

Vendor Torque range Lead time Customization Certifications
BTZ (CKZ-C) ≈10–450 N·m Around 2–4 weeks Wedge count, cage, lube, shaft fit ISO 9001, RoHS
Global Brand A ≈15–500 N·m 3–6 weeks Broad, but pricier ISO 9001/14001
Regional Supplier B ≈8–300 N·m Stock-dependent Limited Varies

Customization notes

  • Cage material: steel or PA66; low-noise grease for high-speed overrunning.
  • Wedge count and spring force to tune torque and backlash.
  • Surface finish recommendations for shaft/housing to meet locking reliability.
  • Food-grade lubrication available for hygienic machinery.

Quick case snapshots

Food conveyor backstop: Medium incline line; swapping to CKZ-C Series Wedge type One Way Clutch Bearing reduced rollback incidents to zero over six months (shift data from plant maintenance). Parcel sorter indexer: High starts/stops; PA66 cage variant ran noticeably quieter, operators reported fewer vibration alarms.

Note: Specs above are indicative; always confirm with the vendor’s datasheet and your load/speed profile.

References

  1. ISO 281: Rolling bearings — Dynamic load ratings and rating life.
  2. ISO 76: Rolling bearings — Static load ratings.
  3. ISO 6508-1: Metallic materials — Rockwell hardness test.
  4. ASTM A295: High-Carbon Anti-Friction Bearing Steel.
  5. ISO 9001: Quality management systems — Requirements; EU RoHS Directive 2011/65/EU.
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