Design & Drawing Capacity
Assembly drawing showing shaft details, tolerances & all mating details.
Sample housing machining drawing showing all details.
Hydrodynamic radial journal bearings
Hydrodynamic axial journal bearings
Calculation in accordance with DIN 31653
Complete calculation of axial bearing accordance with DIN 31653, part 1 to 3 for pressureless lubrication & pressure lubrication bearings. All operating data as stipulated in DIN 31653, such as operating temperatures, minimum lubrication gap width, power loss, oil throughput, etc are calculated.
Calculation in accordance with DIN 31654
Complete calculation of axial bearings in accordance with DIN 31654, part 1 to 3 for pressureless lubrication and pressure lubrication bearings. The type of lubricating feed (lubricating holes, lubricating grooves, lubricating pockets) is taken into account. All operating data stipulated in DIN 31654, such as operating temperature, minimum lubrication gap width, power loss, oil throughput , etc is calculated. Sample calculation output is attached for your reference.
| ANALYSIS OF HYDRODYNAMIC JOURNAL BEARINGS | ||
|---|---|---|
| Parameter | Symbol | Value |
| General Information | ||
| Analysis Standard | — | DIN 31652 |
| Bearing Type | — | Closed Bearing |
| Heat Transfer | — | By Lubricant |
| Lubrication Data | ||
| Oil Inlet Pressure (bar) | Pen | 2.00 |
| Speed (RPM) | n | 1500.00 |
| Type of Oil | — | ISO VG 68 |
| Kinematic Viscosity @ 40°C (mm²/s) | ν40 | 68.00 |
| Kinematic Viscosity @ 100°C (mm²/s) | ν100 | 8.80 |
| Directional Constant | m | 3.571 |
| Specific Density @ 15°C (kg/dm³) | ρ | 0.885 |
| Bearing Dimensions | ||
| Bearing Diameter (mm) | D | 225.00 |
| Bearing Width (mm) | B | 120.00 |
| Radial Force (N) | F | 46,000.00 |
| Bearing Clearance @ 20°C (mm) | S | 0.3400 |
| Shaft Material | ||
| Material | — | C45 (1) |
| Young's Modulus (N/mm²) | E | 206000.00 |
| Poisson's Ratio | ν | 0.300 |
| Coefficient of Expansion (1/°C) | α | 11.50 × 10⁻⁶ |
| Housing Material | ||
| Material | — | C45 (1) |
| Young's Modulus (N/mm²) | E | 206000.00 |
| Poisson's Ratio | ν | 0.300 |
| Coefficient of Expansion (1/°C) | α | 11.50 × 10⁻⁶ |
| Lubrication Arrangement | ||
| Arrangement | — | Two lubrication holes at 90° to the direction of load |
| Lubrication Hole Diameter (mm) | dH | 12.00 |
| Performance Results | ||
| Mean Surface Pressure (N/mm²) | P | 1.70 |
| Circumferential Speed (m/s) | U | 17.67 |
| Oil Inlet Temperature (°C) | t₁ | 40.00 |
| Oil Exit Temperature (°C) | t₂ | 59.06 |
CNC machining facility for housings shell & seals.
All finish machine operations of bearings, housings & seal is done on CNC machines only. Process for the same is
VMC Machine, Doosan Make
VTL Machine, Jyoti Make
CNC Horizontal Boring Machine, Kuraki make
Vertical machining Centre, 5 Axis, Johnford make
FACILITIES LIST :
| Sr. No. | Machine Description | Make | Specifications |
|---|---|---|---|
| 1 | CNC Vertical Turning Lathe | Jyoti 750 B |
|
| 2 | Vertical Machining Centre | Doosan DNM 650/50 II |
|
| 3 | CNC Horizontal Boring Machine | Kuraki, Japan |
|
| 4 | Vertical Turning Lathe | Sedin |
|
| 5 | Vertical Machining Centre, 5 Axis | Johnford DMC-1500H |
|
| 6 | Vertical Turning Lathe | Sedin |
|
| 7 | Turret Lathe | Kirloskar |
|
| 8 | Centre Lathe | Rajkot |
|
| 9 | Centrifugal Casting Machine | Own |
|
| 10 | Vertical Milling Machine | Graffenstaden | X : 1200 mm | Y : 450 mm | Z : 500 mm |
| 11 | Radial Drill Machine | Rajkot | Drilling Capacity : 40 mm |
| 12 | Melting Furnace | Konark |
|
| 13 | Overhead Crane | Weight Lifter | Capacity : 3 Ton |