
GIICLGIICL Drum Gear Coupling (narrow / basic type), JB/T 8854.2-1999
GIICL Drum Gear Coupling YONGJING

GIICL is a curved-tooth (drum) gear coupling of the narrow (basic) type to JB/T 8854.2-1999 (superseding JB/ZQ 4378-1986). The short distance between the gear rings gives a compact design with low inertia, but also a smaller permissible radial displacement than the wide GICL type. Per Yongjing data the rated torque is 400 N·m – 5,000 kN·m; the coupling is bidirectional and either outer gear sleeve may be the driving end. For reliable grease retention and fewer parts the plant recommends a sealing end cover made integral with the internal gear ring. GOST counterpart: MZ gear couplings per GOST 5006-94 / GOST R 50895-96.
Specifications
- Rated torque
- 400 N·m – 5,000 kN·m (Yongjing data)
- Design
- narrow (basic) type — short gear-ring spacing, compact, low inertia (Yongjing data)
- Radial misalignment
- lower allowance than the wide GICL type (Yongjing data)
- Angular misalignment
- up to 1°30′ — design value of the JB/T 8854 series; not stated on the Yongjing site
- Rotation
- bidirectional; either hub may be the driving end (Yongjing data)
- Lubrication
- grease; the plant recommends an integral sealing cover / gear ring
- Standard
- JB/T 8854.2-1999 (superseding JB/ZQ 4378-1986)
- GOST counterpart
- GOST 5006-94, GOST R 50895-96 (MZ gear couplings)
Applications
- Rolling mill main drives
- Mill and crusher drives
- Crane mechanisms
- Heavy-duty conveyors
- Shaft lines with limited axial space
We will select the right size for your task and prepare a quotation under a direct SDS contract.







