LLC Spetsremmash
Business hours
9:00 AM – 6:00 PM
+380933757875
+380983491736
Mechmachservises@gmail.com
Kovtunoled@gmail.com
Send a Drawing
UA
PL
LLC Spetsremmash

Full-Cycle Gear Manufacturing

We manufacture gears, gear shafts, gear rims, splined shafts and complete gear sets — from small precision components to gears with diameters up to 2000 mm.
Our in-house equipment includes gear hobbing, gear shaping, bevel gear cutting, spline milling and grinding machines, supported by heat treatment, induction hardening and inspection equipment.
From blank preparation and tooth cutting to hardening, grinding and final inspection of the completed transmission.
Request a Quote
ALMOST THE FULL RANGE OF INDUSTRIAL GEAR TRANSMISSIONS

We Manufacture:

spur gears; helical gears; double-helical gears; gear shafts; gear rims; gear couplings; external gears; internal gears; sun and ring gears for planetary transmissions; straight bevel gears; circular-tooth bevel gears; spiral bevel gears; Zerol gears; hypoid gears; worm wheels; external splined shafts; replacement gear components according to drawings or samples.
Module range: 0.1 to 22
Diameters: 10 mm to 2000 mm

GEAR MACHINING EQUIPMENT

  • Heavy-Duty Gear Hobbing Machine KOLOMNA 5A342P
    Our main heavy-duty gear hobbing machine for large-diameter gear components.
    Maximum gear diameter:
    up to 2000 mm
    Maximum module:
    up to 20
    Table diameter:
    Ø1800 mm
    Maximum workpiece weight:
    up to 20,000 kg
    Used for large gears, gear rims and components of heavy industrial gearboxes.

    Ø2000 • module 20 • table Ø1800 • up to 20 t
  • High-Precision Gear Hobbing Machine 53A50
    High-accuracy gear hobbing machine for medium-sized components.
    Maximum spur gear diameter:
    500 mm
    Maximum module:
    up to 10
    Maximum tooth length:
    up to 350 mm
    Particularly suitable for serial production of spur and helical gears.

    Ø500 • module up to 10 • face width up to 350 mm • spur & helical gears

  • Precision Japanese Hamai H-102C
    Japanese high-precision horizontal gear hobbing machine for small precision gear components.
    Maximum diameter:
    approximately Ø120 mm
    Maximum hobbing length:
    up to 160 mm
    Maximum module:
    up to 2
    Particularly effective for small spur and helical gears, pinions and precision serial parts.

    Ø120 • L160 • module 2 • precision gear hobbing
  • Heavy-Duty Gear Shaper 5M161
    Heavy gear shaping machine for internal and external gears.
    Maximum installed workpiece diameter:
    up to 1250 mm
    Maximum working gear rim diameter:
    approximately 1000 mm
    Maximum module:
    up to 12
    Especially important for:
    • ring gears;
    • internal gears;
    • cluster gears;
    • planetary gearboxes.
    up to Ø1250 • gear rim Ø1000 • module 12 • internal gears
  • Precision Klingelnberg AGW 231
    Precision machine for sharpening gear hobs and grinding gear components.
    Maximum hob / gear diameter:
    approximately 250 mm
    Grinding length:
    up to 350 mm
    Module:
    up to 22
    In-house hob sharpening allows us to maintain stable tool geometry without depending on external subcontractors.

    Ø250 • module up to 22 • gear hob sharpening
  • Bevel Gear Cutting Machine 528C
    Heavy-duty machine for manufacturing large bevel gears with circular and spiral teeth.
    Maximum module:
    up to 16
    Depending on gear geometry, the machining diameter can reach approximately:
    Ø800 mm
    Suitable for large bevel and hypoid gear pairs used in industrial drives.

    up to Ø800 • module 16 • large bevel & hypoid gears

  • Gear Roll Tester 5A725
    Testing machine for bevel and hypoid gear pairs.
    Allows us to inspect:
    • contact pattern;
    • backlash;
    • meshing behaviour;
    • operating noise.
    It can also be used for selected cylindrical and worm gear applications.
    Maximum bevel gear diameter:
    approximately Ø500 mm, depending on the setup.

    pair rolling • contact pattern • backlash • noise inspection
  • Specialised Spline Milling Machine 5350V
    Specialised spline milling machine for long shafts.
    Distance between centres:
    up to 2000 mm
    Maximum spline diameter:
    approximately Ø150 mm
    Maximum module:
    up to 6
    Used for drive shafts, gearbox shafts and other long splined components.

    between centres 2000 mm • splines up to Ø150 • module 6 • long shafts
  • Specialised Spline Grinder KAPP RS203
    Specialised spline grinding machine for final machining of splined shafts and profiled components.
    On our equipment, we grind spline components up to:
    2000 mm long
    including parts after heat treatment.

    Spline grinding • L up to 2000 mm • shafts • profile surfaces
  • Heavy-Duty Gear Grinder WMW Niles ZSTZ 10H
    Heavy-duty gear grinding machine for finishing cylindrical gears after heat treatment.
    Maximum grinding diameter:
    up to Ø1250 mm
    Maximum module:
    up to 25
    Used to improve tooth profile accuracy and the quality of working surfaces on critical gear transmissions.

    Ø1250 • module up to 25 • gear grinding • large gears

HARDENING OPERATIONS

Depending on the component and technical requirements, the manufacturing route can include hardening operations to improve the durability and wear resistance of gears and shafts.

  • Local Hardening of Gear & Shaft Components

    Our in-house induction hardening system allows us to locally harden working surfaces of: shafts; journals; gear components; other industrial parts.
    The main advantage of induction hardening is the ability to create a hard, wear-resistant surface layer while retaining the required properties of the core.
    It is particularly effective for:
    • shafts;
    • gear shafts;
    • drive components.

  • Heat Treatment of Gears

    For gears and other components, we also perform furnace heat treatment.
    Depending on the material and technical requirements, the process may include:
    • heating for hardening;
    • through hardening.
    After heat treatment, critical surfaces can proceed to:
    • gear grinding;
    • spline grinding;
    • cylindrical grinding.

MANUFACTURING FROM A SAMPLE

When the original drawing has been lost, we can consider manufacturing replacement gear components from an existing sample.
We determine:
  • number of teeth;
  • module;
  • outside and pitch diameters;
  • helix angle;
  • helix direction;
  • spline parameters;
  • type of gearing;
  • fitting surfaces;
  • material and heat-treatment requirements;
  • spline grinding requirements;
  • gear grinding requirements.
View More...

COMPLETE GEAR MANUFACTURING CYCLE

From Raw Material to a Finished Gear Transmission

A typical manufacturing route may include:

1. Blank Preparation

Metal cutting, forging, casting or another type of initial blank.

2. Turning or Vertical Turning

Machining of: outside diameters;bores; faces; technological reference surfaces.

3. Milling / Boring

Machining of: keyways; holes; mounting surfaces; other structural features.

4. Gear Cutting

Depending on the design, we use:

Hamai • 53A50 • 5A342P • 5M161 • 525 • 528C or other specialised equipment

5. Heat Treatment

Induction hardening or furnace hardening.

6. Finish Machining

Final machining using:

WMW Niles ZSTZ 10H • KAPP RS203 • other grinding equipment

7. Inspection

Inspection of: geometry; fitting surfaces; coordinates; gear pair operation.

For bevel gears, the pair can also be tested on the 5A725, while dimensional and geometric inspection can be performed on the Sheffield Discovery D12.

8. Finished Part or Complete Gear Set

The result can be supplied as an individual finished component or a complete matched gear pair / transmission set.

QUALITY CONTROL

We inspect not only individual dimensions, but also the operation of the gear transmission itself.
Depending on the type of component, inspection may include:
  • diameters and fitting surfaces;
  • centre distances and coordinate dimensions;
  • gear tooth profile geometry;
  • runout;
  • relative position of surfaces;
  • spline profile inspection;
  • contact pattern of bevel or hypoid gear pairs;
  • backlash;
  • roll testing of the gear pair;
  • spline grinding inspection;
  • gear grinding inspection.
View More...

PARTS WE MANUFACTURE

Gears

From small precision gears to components with diameters up to:
Ø2000 mm

Gear Couplings

Components for drives, gearboxes and heavy industrial equipment.

Bevel & Hypoid Gear Pairs

Manufacturing of matched wheel-and-pinion sets followed by roll testing.

Splined Shafts

Spline milling and final grinding of parts up to:
2000 mm long

Planetary Gear Components

Manufacturing of: sun gears; planet gears; ring gears; components with internal gearing.

Gear Shafts

Complete manufacturing cycle including:
turning → gear machining → heat treatment → grinding

COMPLETE MACHINING

LLC Spetsremmash can perform further machining and heat-treatment operations in-house. After grinding, depending on the technical requirements, the part may proceed to:
  • CNC Wire EDM
    Precision machining on the Japanese Mitsubishi FA20 wire EDM machine.
  • CNC Milling
    Machining of planes, slots, contours and complex geometry.
  • Vertical Turning
    Machining of large-diameter gears and gear rims.
  • Heat Treatment
    Hardening, induction hardening, carburising, normalising, annealing and tempering.
  • Restoration & Cladding
    Restoration of worn surfaces followed by further machining to final dimensions.
  • CNC Turning
    Machining and finishing of fitting and rotational surfaces.
How We Work
We Receive Your Technical Requirements
Send us a drawing, 3D model, photographs or a description of the part.
If necessary, our specialists will clarify the material, tolerances, required quantity and other technical requirements.
We Develop the Manufacturing Process and Quotation
We review the documentation, determine the required operations and agree on the production time, price and order conditions.
Manufacturing
We perform all required blank preparation, machining, heat-treatment and finishing operations.
For complex projects, we can keep the customer informed about the key stages of production.
Final Inspection & Shipping
We perform final inspection, prepare the parts for shipment and agree on a suitable delivery method
Get a Quote for Your Part
Send us a drawing, 3D model or photographs of the part.
Please specify:
material; required quantity; main technical requirements.
We will analyse the task and prepare a manufacturing proposal.
Click to Attach
By clicking "Send Drawing", you consent to the processing of your personal data.
Contact Us
Phone:
+380 93 375 78 75
+380 98 349 17 36
Email:
Mechmachservises@gmail.com
Kovtunoled@gmail.com
Address:
49V Shakhtarska Street,
Novovolynsk, Volyn Region,
45400, Ukraine