Selection

Description Selection Method Reference Page

Determine gearbox ratio Gearbox ratio = Motor speed / Fan speed _

Determine gearbox size Motor power < Mechanical rating (From table) / 2* Page 4, 6

Thrust load Actual thrust load # < Allowable thrust load on Fan shaft (From Table) Page 8

High speed rotation speed Standard high speed rotation range 1500 ~ 1750 r/min _

* AGMA / CTI recommends a minimum Service factor of 2.0 for gear drives in cooling tower fan service when driven by electric motor or steam turbine. # Actual thrust load = Fan thrust load (downward thrust load due to rotation of the fan in clockwise direction + Fan-weight.

Lubricant Specification

Viscocitymm²/s(cSt)

0at 40 C PremiumTraxol

BharatPetroleum

IndianOil

Hindustan Petroleum

BPEnergol

Castrol SPARAN Mobilgear Shell Omala Oil

CepsaEngranajes

KlüberoilGEM 1

Aral Chevron Gear

Compound

Tribol

ISO VG460AGMA 7EP

- AmocamOil 460

ServomeshSP 460

ParthanEP-460

GR-XP460

AlphaMW 460

Spartan EP 460

Mobilgear634

Omala460

HP 460 460 DegolBG 460

EP 460 Trebol1100/460

ISO VG460AGMA 7S

-ServoSynGear Plus

460

- - - - - - - KlubersynthGH6 - 460

- - --

ISO VG320AGMA 6EP

Traxol G32

AmocamOil 320

ServomeshSP 320

ParthanEP-320

GR-XP320

AlphaMW 320

Spartan EP 320

Mobilgear632

Omala320

HP 320 320 DegolBG 320

EP 320 Trebol1100/320

ISO VG220AGMA 5EP

AmocamOil 220

ServomeshSP 220

ParthanEP-220

GR-XP220

AlphaMW 220

Spartan EP 220

Mobilgear630

Omala220

HP 220 220 DegolBG 220

EP 220 Trebol1100/220

ISO VG320AGMA 6S

-ServoSynGear Plus

320

- - - - - - - KlubersynthGH6 - 320

- - --

ISO VG220AGMA 5S

-ServoSynGear Plus

220

- - - - - - - KlubersynthGH6 - 220

- - --

If the gear drive is started when the ambient temperature is below –7°C (20°F), use a lube oil heater when mineral oil is used.

Approximate weight & Oil capacity

Net. weight without oil

(kg)

Net. weight without oil

(kg)

PC114 80 105 3.5 PC214 150 180 8

PC116 105 135 4.5 PC216 220 260 13

PC118 150 180 6 PC218 300 350 17

PC120 190 230 8 PC220 410 470 23

PC122 250 320 10 PC222 530 610 26

PC125 330 410 12 PC225 700 820 34

PC128 450 550 20 PC228 920 1070 50

PC132 600 700 24 PC232 1280 1440 72

PC135 840 970 35 PC235 1840 2000 90

PC140 1110 1250 50 PC240 2450 2630 120

PC145 1520 1680 68 PC245 3390 3560 160

Approx. Weight & Oil quantity

Unit Size

Shipping weight

(kg)

*Oil quantity

(lit)

UnitSize

Shipping weight

(kg)

*Oil quantity

(lit)

Outputspeed range r/min

-7 to +10 +10 to +25 +25 to +50

1000-700 VG 220 VG 320 VG 460

700-400 VG 220 VG 320 VG 460

400-70 VG 320 VG 460 VG 460

Recommended ISO Grade

Ambient Temp °C

* Oil Quantity mentioned above are for reference only. The exact quantity of oil depends on the oil dipstick.

3

Notes : 1. Key and keyways for shaft confirm to IS 2048 / DIN 6885-1 / ISO/R773. 2. Shaft centre hole at high speed shaft confirm to DIN 332/2 Form DS (with threads) 3. For Air breather and drain plugs, a pipe extending from the gearbox to outside the fan stack should be prepared by customer. This pipe is not under the scope of Premium-Stephan supply. 4. Provision for temperature probe, vibration probe etc. and Oil level switch can be supplied upon request.

Notes : 1. Key and keyways for shaft confirm to IS 2048 / DIN 6885-1 / ISO/R773. 2. Shaft centre hole at high speed shaft confirm to DIN 332/2 Form DS (with threads) 3. For Air breather and drain plugs, a pipe extending from the gearbox to outside the fan stack should be prepared by customer. This pipe is not under the scope of Premium-Stephan supply. 4. Provision for temperature probe, vibration probe etc. and Oil level switch can be supplied upon request.

* Oil Quantity mentioned above are for reference only. The exact quantity of oil depends on the oil dipstick

12 11 10 9 8 7 6 5 4 3 2 1

9 8 7 6 5 4 3 2 1