vbelt tech man print - welcome to nirlon. for multiple drive, use as many v-belts required for...

Registered No. 125-95

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HALLMARK OF EXCELLENCERvA

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QSRACCREDITED

BY

BeltSize

PitchLengthIn (mm)

C-96 2490

C-97 2520

C-98 2550

C-99 2570

C-100 2600

C-101 2620

C-102 2650

C-103 2670

C-104 2700

C-105 2720

C-106 2750

C-107 2770

C-108 2800

C-109 2820

C-110 2850

C-111 2880

C-112 2900

C-113 2930

C-114 2950

C-115 2980

C-116 3000

C-117 3030

BeltSize

BeltSize

PitchLengthIn (mm)

PitchLengthIn (mm)

C-118 3050

C-119 3080

C-120 3100

C-121 3130

C-122 3150

C-123 3180

C-124 3210

C-125 3230

C-126 3260

C-127 3280

C-129 3330

C-130 3360

C-131 3380

C-129 3330

C-130 3360

C-131 3380

C-132 3410

C-133 3430

C-134 3460

C-135 3490

C-136 3510

C-137 3540

C-138 3560

C-139 3590

C-140 3610

C-141 3640

C-142 3660

C-143 3690

C-144 3710

C-145 3740

C-146 3760

C-147 3790

C-148 3820

C-149 3840

C-150 3870

C-151 3890

C-152 3920

C-153 3940

C-154 3970

C-155 3990

C-156 4020

C-157 4040

C-158 4070

C-159 4090

BeltSize

PitchLengthIn (mm)

C-160 4120

C-161 4150

C-162 4170

C-163 4200

C-164 4220

C-165 4250

C-166 4270

C-167 4300

C-168 4320

C-169 4350

C-170 4370

C-171 4400

C-172 4420

C-173 4450

C-174 4480

C-175 4500

C- 176 4530

C-177 4550

C-178 4580

C-179 4600

C-180 4630

BeltSize

BeltSize

PitchLengthIn (mm)

PitchLengthIn (mm)

C-181 4650

C-182 4680

C-183 4700

C-184 4730

C-185 4760

C-186 4780

C-187 4810

C-188 4830

C-189 4860

C-190 4880

C-191 4910

C-192 4930

C-193 4960

C194 4980

C-195 5010

C-196 5030

C-197 5060

C-198 5090

C-199 5110

C-200 5140

C-202 5190

C-204 5240

C-205 5260

C-206 5290

C-208 5340

C-210 5390

C-212 5440

C-215 5520

C-218 5590

C-220 5640

C-222 5690

C-224 5750

C-225 5770

C-228 5850

C-230 5900

C-232 5950

C-234 6000

C-235 6030

C-236 6050

C-237 6080

C-238 6100

22 x 14 mmSECTION -C


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BeltSize

PitchLengthIn (mm)

C-240 6150

C-242 6200

C-243 6230

C-245 6230

C-247 6330

C-250 6410

C-252 6460

C-255 6530

C-256 6560

C-258 6610

C-260 6660

C-262 6710

C-265 6790

C-268 6860

C-270 6910

C-272 6960

C-275 7040

C-277 7090

C-280 7170

BeltSize

BeltSize

PitchLengthIn (mm)

PitchLengthIn (mm)

BeltSize

PitchLengthIn (mm)

D-95 2490

D-98 2570

D-100 2620

D-110 2875

D-118 3080

D-120 3130

D-122 3180

D-124 3230

D-125 3250

D-126 3280

D-128 3330

D-130 3380

D-132 3430

D-134 3480

D-136 3530

D-138 3580

D-140 3640

D-142 3690

D-144 3740

D-147 3810

D-148 3840

BeltSize

BeltSize

PitchLengthIn (mm)

PitchLengthIn (mm)

D-150 3890

D-152 3940

D-154 3990

D-155 4020

D-156 4040

D-158 4090

D-160 4140

D-162 4190

D-165 4270

D-166 4300

D-168 4350

D-170 4400

D-171 4420

D-172 4450

D-173 4470

D-175 4520

D-176 4550

D-177 4570

D-178 4600

D-180 4650

D-182 4700

D-184 4750

D-186 4800

D-188 4850

D-190 4910

D-191 4930

D-192 4960

D-195 5030

D-196 5060

D-197 5080

D-200 5160

D-204 5260

D-205 5290

D-208 5360

D-210 5410

D-215 5540

D-216 5570

D-218 5620

D-220 5670

D-223 5740


32 x 19 mmSECTION -D

C-284 7270

C-285 7300

C-290 7420

C-292 7470

C-294 7520

C-296 7570

C-298 7630

C-300 7680

C-304 7780

C-306 7830

C-308 7880

C-310 7930

C-315 8060

C-324 8290

C-328 8390

C-330 8440

C-340 8690

C-345 8820

C-350 8950

C-358 9150

C-360 9200

C-375 9580

C-418 10670

C-500 12760

C-550 14030

C-598 15250

C-350 8950

C-358 9150

C-360 9200

C-375 9580

C-418 10670

C-500 12760

C-550 14030

C-598 15250

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BeltSize

PitchLengthIn (mm)

D-224 5770

D-225 5790

D-226 5820

D-228 5870

D-230 5920

D-238 6120

D-240 6180

D-243 6250

D-244 6280

D-246 6330

D-248 6380

D-250 6430

D-255 6560

D-258 6630

D-260 6680

D-262 6730

D-265 6810

D-268 6890

D-270 6940

D-276 7090

D-278 7140

D-280 7190

D-282 7240

D-285 7320

D-287 7370

D-290 7450

D-292 7500

D-298 7650

D-300 7700

D-302 7750

D-303 7780

D-314 8050

D-315 8080

D-317 8130

D-320 8210

D-324 8310

BeltSize

BeltSize

PitchLengthIn (mm)

PitchLengthIn (mm)

BeltSize

PitchLengthIn (mm)

E-180 4660

E-195 5050

E-210 5430

E-220 5680

E-225 5810

E-230 5930

E-238 6140

E-250 6440

E-268 6900

BeltSize

BeltSize

PitchLengthIn (mm)

PitchLengthIn (mm)

E-278 7150

E-290 7460

E-298 7660

E-318 8170

E-328 8420

E-330 8470

E-344 8830

E-358 9190

E-360 9240

32 x 19 mmSECTION -D

38 x 23 mmSECTION -E

D-328 8410

D-330 8460

D-336 8610

D-340 8720

D-350 8970

D-358 9170

D-360 9220

D-368 9430

D-390 9990

D-394 10090

D-396 10140

D-398 10190

D-408 10440

D-418 10700

D-435 11130D-450 11510D-478 12220D-538 13740D-598 15270

E-368 9440

E-375 9620

E-394 10100

E-398 10200E-418 10710E-478 12230E-496 12690E-538 13760E-551 14090E-598 15280

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Proper belt tension is vital to the operation of the drive and the life of V-Belts. To ensure optimum V-belt drive operation, it is

recommended to check the tension in the belts by measuring the deflection force value (N) with the help of a tension

measuring device.

The belt tension in most drives can be checked with adequate reliability by means of Nirlon V-Belts Tension Tester.

1. Measure the span length of the belt in mm. (Ref. sketch).

2. Tie a string / thread on the two pulleys along the length of belts and mark center of the span on the belt.

3. Calculate 1.5% of the span (say x) for belt length less than 1000 mm & 1.0% of the span for belt length more than

1000 mm. Adjust lower ring on the tension tester on millimeter scale to coincide, “x” mm with the lower side of the

ring.Adjust lower side of the upper ring at 0.00 N.

4. Place tension tester at the centre of the span of the belt. Apply force with the help of tension tester perpendicular to the

span till the lower surface of the lower ring touches the string,

5. Read the deflection force value (N) on the Newton scale by taking reading at the lower side of the upper ring.

6. Compare the deflection force value (N) with the values given in the table ‘A’, The deflection force value (N) should lie

between the min. and max. values given in the table ‘A’.

7. Deflection force less than minimum recommended value in the range indicates an under-tensioned drive &

deflection force higher than maximum recommended value indicates an over-tensioned drive.

TENSION MEASUREMENT PROCEDURE

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MAINTENANCE & INSTALLATION OF V - BELTS

1. Ensure perfect alignment of pulleys.

2. The grooves should be free from burrs, sharp edges, rust, oiland grease. To prevent this guard should be provided.

3. Belts used in multiple drive should be of same manufacturer.

4. Do not pry or roll V-belts into the pulley grooves, if doneso, the belts get damaged internally as a result of whichbelt life is affected. Using drive take-up allowance enable thebelts to be easly mounted on the pulleys.

RIGHT WRONG

Same manufacturer.

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5. For multiple drive, use as many V-belts required for betterservice life and low maintenance cost. For best result one should use Nirlon set free belts. The whole set should be replaced if one belt fails. Nirlon beltsshould not be lubricated.

7. Pulley should be checked whether it is manufactured asper international standards or not, and should also be checkedfor worn out sheave. Bearings should also be checked for lubrication.

8. If the groove angle is too large, the canvas cover is quicklyworn out along the lower side walls and if possible, the upper canvas gets worn out.

6. A Change in ride out indicates uneven belt wear or wornsheaves. Change belt/sheave with new set.

LIKE THIS NOT THIS NOT THIS

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vbelt tech man print - welcome to nirlon. for multiple drive, use as many v-belts required for...

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