YONGJINGbrakes & couplings from China
Ningbo Yongjingwei Transmission Equipment Co., Ltd.
Manufacturer of industrial couplings and cardan shafts. Gear, diaphragm and elastic couplings plus universal joint shafts for metallurgy, power generation and mechanical engineering.
Brakes & Couplings
GIICL Drum Gear Coupling
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.
- 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)
JM Diaphragm Coupling
JM is a diaphragm (disc) coupling: torque is carried by packs of metal diaphragms that compensate axial, radial and angular misalignment caused by installation tolerances, deformation under load and thermal expansion. The series was developed by Yongjing jointly with the Shanghai Research Institute of Materials; the plant builds five basic series and over a hundred sizes. Transmission efficiency up to 99.86 %, operating temperature −80…+300 °C, no lubrication, backlash or wear. JB/T 9147 series: JMI 25–160,000 N·m, JMII 40–180,000 N·m, bores 14–340 mm. No direct GOST; counterparts are Rexnord Thomas and KTR Radex-N.
- Rated torque
- JMI 25–160,000 N·m; JMII 40–180,000 N·m (JB/T 9147 series)
- Bore range
- 14–340 mm (JB/T 9147 series)
- Max. speed
- up to 6,000 rpm (JMI), up to 10,700 rpm (JMII) — JB/T 9147 series
- Transmission efficiency
- up to 99.86 % (Yongjing data)
- Misalignment
- axial, radial and angular; angular about twice that of gear couplings (Yongjing data)
- Operating temperature
- −80…+300 °C (Yongjing data)
- Maintenance
- no lubrication, no backlash or wear; the spacer-shaft version is removed without moving the machines (Yongjing data)
- Standard
- JB/T 9147; no GOST counterpart (Rexnord Thomas, KTR Radex-N)
ML/MLL Jaw Coupling
ML is a plum-blossom (jaw) elastic coupling to GB/T 5272: two jaw hubs with a spider element between them; when the shafts run out of line the spider deforms elastically and compensates the misalignment automatically. Per Yongjing data the rated torque is 25–31,500 N·m, permissible speed 950–15,300 rpm, operating temperature −35…+80 °C; the series suits frequent starts, reversing, medium and high speeds and duties with high reliability requirements. MLL is the brake-drum version: MLL-I split, MLL-II one-piece, 140–25,000 N·m at −20…+80 °C. GOST counterpart: spider couplings per GOST 14084-93 / GOST R 50894-96.
- Rated torque
- ML 25–31,500 N·m; MLL 140–25,000 N·m (Yongjing data)
- Permissible speed
- 950–15,300 rpm (Yongjing data)
- Elastic element
- spider clamped between the hub jaws and loaded in radial compression (Yongjing data)
- Operating temperature
- ML −35…+80 °C; MLL −20…+80 °C (Yongjing data)
- Misalignment compensation
- automatic, by elastic deformation of the spider (Yongjing data)
- Versions
- ML basic; MLL-I with split brake drum; MLL-II with one-piece brake drum (Yongjing data)
- Standard
- GB/T 5272
- GOST counterpart
- GOST 14084-93, GOST R 50894-96 (spider couplings); European equivalent KTR ROTEX
SWC Universal Joint Shaft
SWC is a cross-shaft universal joint shaft with an integral forged yoke. Its main advantage is large angular capacity: per Yongjing data the axis angle reaches 15–25° against about 10° for the SWP type, and transmission efficiency is 98–99.8 %. At the same swing diameter SWC transmits more torque than other coupling types, so it is used where the radial envelope is limited; running is smooth and quiet. The JB/T 5513 series covers 13 sizes with swing diameters 100–620 mm and rated torque 1.25–1,000 kN·m. Yongjing builds the SWC-WD, SWC-WH and SWC-BH versions. GOST counterpart: universal joint drives per GOST 13758.
- Rated torque
- 1.25–1,000 kN·m (JB/T 5513 series)
- Swing diameter
- 100–620 mm, 13 sizes (JB/T 5513 series)
- Axis angle
- up to 15–25° (SWC); about 10° for the SWP type (Yongjing data)
- Transmission efficiency
- 98–99.8 % (Yongjing data)
- Design
- cross-journal joint with integral forged yoke (Yongjing data)
- Versions
- SWC-WD (short non-telescopic), SWC-WH (welded non-telescopic), SWC-BH (welded telescopic) (Yongjing data)
- Connection
- flanged
- Standard
- JB/T 5513; GOST counterpart — universal joint drives per GOST 13758
GICL Gear Coupling
GICL is a curved-tooth (drum) gear coupling of the wide type to JB/T 8854.3-2001 (superseding JB/ZQ 4222-1986). The wide internal gear ring gives an increased misalignment capacity; the coupling is intended for horizontal coaxial shaft lines and runs in both directions — either outer gear sleeve may be the driving end. Per Yongjing data the rated torque is 630 N·m – 2,800 kN·m. The plant recommends the version whose sealing end cover is integral with the internal gear ring: fewer parts and better grease retention. Versions: GICLZ with spacer shaft and a brake-drum variant. GOST counterpart: MZ gear couplings per GOST 5006-94.
- Rated torque
- 630 N·m – 2,800 kN·m (Yongjing data)
- Design
- wide internal gear ring — increased misalignment capacity (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)
- Versions
- GICL basic, GICLZ with spacer shaft, brake-drum variant (Yongjing data)
- Lubrication
- grease; the plant recommends an integral sealing cover / gear ring
- Standard
- JB/T 8854.3-2001 (superseding JB/ZQ 4222-1986)
- GOST counterpart
- GOST 5006-94, GOST R 50895-96 (MZ gear couplings)
HL/HLL Elastic Pin Coupling
HL (new designation LX) is an elastic pin coupling to GB/T 5014. Per Yongjing data it transmits a rated torque of 250–180,000 N·m at an operating temperature of −20…+70 °C, suits frequent starts, has a simple design and long service life and tolerates noticeable axial shaft float. The HLL version carries a brake drum for shoe brakes, 560–35,500 N·m. The GB/T 5014 series covers 14 sizes LX1–LX14 with bores 12–340 mm, HT200 cast-iron or ZG35 cast-steel hubs and MC nylon pins. No direct GOST; the nearest class is MUVP per GOST 21424-93.
- Rated torque
- HL 250–180,000 N·m; HLL 560–35,500 N·m (Yongjing data)
- Bore range
- 12–340 mm (LX1–LX14 series per GB/T 5014)
- Max. speed
- 950–8,500 rpm (GB/T 5014 series)
- Material
- HT200 cast-iron or ZG35 cast-steel hubs, MC nylon pins (per GB/T 5014)
- Operating temperature
- −20…+70 °C (Yongjing data)
- Versions
- HL (LX) basic; HLL (LXZ) with brake drum for shoe brakes (Yongjing data)
- Standard
- GB/T 5014
- GOST counterpart
- none direct; nearest class MUVP per GOST 21424-93
WGP/WGS/WGT Gear-Type Universal Coupling
WGP, WGS and WGT are three versions of the WG-series curved-tooth (drum) gear coupling. WGP carries a brake disc for disc brakes: 800 N·m – 180 kN·m, operating temperature −20…+100 °C. WGT uses a spacer sleeve for shafts set slightly apart: 800 N·m – 1,400 kN·m, −20…+100 °C, high rigidity at low weight and easy repair. WGS is the telescopic version with a splined shaft that runs through the spherical external teeth of the driving end into the hollow output shaft of the gearbox, shortening the axial envelope of the machine: 315–1,600 kN·m, axis angle under load up to 1.5°; the gear sleeve is fitted forward (Z) or reversed (F). GOST counterpart: MZ gear couplings per GOST 5006-94.
- Rated torque
- WGP 800 N·m – 180 kN·m; WGT 800 N·m – 1,400 kN·m; WGS 315–1,600 kN·m (Yongjing data)
- Operating temperature
- −20…+100 °C (WGP, WGT) (Yongjing data)
- WGP
- with brake disc for disc brakes (Yongjing data)
- WGT
- with spacer sleeve for shafts set apart; high rigidity at low weight (Yongjing data)
- WGS
- telescopic version with splined shaft; axis angle under load up to 1.5° (Yongjing data)
- WGS assembly
- inner gear sleeve fitted forward (Z) or reversed (F); centring support near the driven end (Yongjing data)
- Standard
- WG-series gear couplings, JB/T 7001–7004; no standard is stated on the Yongjing site
- GOST counterpart
- GOST 5006-94, GOST R 50895-96 (MZ gear couplings)
TL Elastic Sleeve Pin Coupling
TL (new designation LT) is an elastic sleeve pin coupling to GB/T 4323, the most common general-purpose flexible coupling. Per Yongjing data it transmits a rated torque of 6.3–16,000 N·m at an operating temperature of −30…+80 °C, provides moderate damping and shaft misalignment compensation, and suits frequent starts and reversing duty. Torque is carried by steel pins with rubber sleeves; worn sleeves are replaced without moving the motor or gearbox. The GB/T 4323 series covers 13 sizes LT1–LT13 with bores 9–170 mm. Direct counterpart of MUVP couplings per GOST 21424-93 with the same torque series.
- Rated torque
- 6.3–16,000 N·m (Yongjing data)
- Bore range
- 9–170 mm (LT1–LT13 series per GB/T 4323-2002)
- Max. speed
- 800–6,600 rpm (steel hubs), 1,150–8,800 rpm (cast iron) — GB/T 4323-2002 series
- Misalignment
- installation: radial 0.1–0.3 mm, angular 0°15′–0°45′; maximum operating values are twice as high: radial 0.2–0.6 mm, angular 0°30′–1°30′ (GB/T 4323-2002 series)
- Elastic element
- steel pins with rubber sleeves (design per GB/T 4323); fitted and serviced without moving the machines
- Operating temperature
- −30…+80 °C (Yongjing data)
- Standard
- GB/T 4323 (LT designation)
- GOST counterpart
- GOST 21424-93 (MUVP)
ZL/ZLD Elastic Pin Gear Coupling
ZL (new designation LZ) is an elastic pin gear coupling to GB/T 5015: nylon pins transmit torque through a toothed profile, combining misalignment compensation with high load capacity. Per Yongjing data the rated torque is 100 N·m – 2,500 kN·m at an operating temperature of −20…+70 °C; the series is intended for medium and high power and is noted for its simple design, easy maintenance and long service life. The GB/T 5015 series covers 23 sizes LZ1–LZ23 with bores 12–850 mm; ZLD is the taper-bore version. In load terms the series spans the gap between MUVP per GOST 21424-93 and gear couplings per GOST 5006-94.
- Rated torque
- 100 N·m – 2,500 kN·m (Yongjing data)
- Bore range
- 12–850 mm (LZ1–LZ23 series per GB/T 5015)
- Max. speed
- 460–5,000 rpm (GB/T 5015 series)
- Elastic element
- nylon pins in toothed engagement (per GB/T 5015)
- Operating temperature
- −20…+70 °C (Yongjing data)
- Versions
- Yongjing offers ZL (LZ) basic and ZLD; per the GB/T 5015 series ZLD is the taper-bore and LZZ the brake-drum version
- Standard
- GB/T 5015
- GOST counterpart
- none direct; between MUVP GOST 21424-93 and MZ GOST 5006-94
FAQ — YONGJING
What equipment does SDS supply from YONGJING?
SDS delivers the full YONGJING product range including brakes & couplings. Detailed series, sizes and technical specifications are available on this page; full PDF catalogues can be downloaded from the Catalogues section.
In which industries is YONGJING equipment used?
YONGJING equipment is applied in metallurgy, power generation, mining & mineral processing and cement industry and other industries. We select a specific model for your duty cycle, load profile, working environment and ambient conditions.
What is the warranty and lead time for YONGJING?
Standard manufacturer warranty — 12 months from commissioning, no more than 18 months from shipment. Production lead time is 4–16 weeks depending on specification (the equipment is manufactured in China, Zhejiang Province, Ningbo). Delivery to Russia is by road transport. Detailed terms are on the Terms of Cooperation page.
How to order YONGJING equipment from SDS?
Send a technical request with operating parameters and requirements. Within one business day we prepare a technical-commercial proposal with firm pricing and delivery schedule. Default Incoterms — DDP (with EAEU certification and customs clearance included).
Need help with YONGJING?
An SDS engineer will size the unit for your load and quote it — usually within one business day.