Text Box: Text Box: Text Box:
Text Box:

U.S. RUBBER CORPORATION  211 NORTH LOOP 336 E.,  CONROE TX  77301       SALES 800-872-587

U.S. RUBBER CORP.

GRAIN SERVICE PREFERRED CONVEYOR BELTING

US Rubber Corp’s Grain Handling belt provides exceptionally low electrical resistance while maintaining a maximum level of oil resistance ensuring a high level of performance in the tough operating conditions at grain handling facilities.  Our heavy duty Load Star poly/nylon fabric provides exceptional resistance to bolt pull-out along with very low elongation resulting in reduced downtime and extended belt life.   

Manufactured in the USA

Page 5

Rounded Rectangle: Site Index Rounded Rectangle: Home
Rounded Rectangle: Previous
Rounded Rectangle: Next

GRAIN SERVICE CONVEYOR BELTS

GRAIN SERVICE PREFERRED  (SCORF)

 

A premium Static conductive, Oil Resistant, Flame retardant compound designed to provide reliable service to all grain markets.

 

These rubber compounds have superior oil resistance. The rubber meets ASTM D378-10-13-2 requirements.  They also meets OSHA static conductive requirements.  Recommended service temperature -30 to 200 degrees F.

 

US Rubber Corp. manufactures all name retardant belting to requirements set forth by the code of Federal Regulations, Title 30, Section 18.65 part (2-G), administered by the Mine Safety and Health Administration ASTM D378 committee.

 

The static conductivity of these compounds exceeds the requirements as set forth by OSHA; tested by ISO 284 and EN13462-1 procedures.

 

U.S. Rubber Corp. Flame Retardant / Anti-static belting products are certified by Mine Safety and Health Administration:  Corporate designation 28/81.

U.S. RUBBER CORP.

U.S. RUBBER CORPORATION  211 NORTH LOOP 336 E.,  CONROE TX  77301       SALES 800-872-3587

CONVEYOR BELTING

GRAIN SERVICE PREFERRED

Manufactured in the USA

Text Box: Fastener selection is based on belt thickness, pulley diameters and working tension of the belt. Please refer to fastener manufacturer's specifications for proper fastener selection.

U.S. RUBBER CORP.

LOAD STAR SPECIFICATIONS

U.S. RUBBER CORPORATION  211 NORTH LOOP 336 E.,  CONROE TX  77301       SALES 800-872-3587

U.S. RUBBER CORP.

LOAD STAR SPECIFICATIONS

U.S. RUBBER CORPORATION  211 NORTH LOOP 336 E.,  CONROE TX  77301       SALES 800-872-3587

· Minimum pulley diameters are dependent on the type of splice, fastener used, belt tension and belt tension required.

· Troughabilly and Load Support can be dependent on cover gauges and compounds used.

· Impact rating is based on the use of proper rubber impact idlers or bed plus proper loading and transfer conditions. Rating  are based on 10% lumps and 90% fines or sized material up to 4" lumps.  If proper impact idlers or beds are not used, impact rating is downgraded by half or less depending upon the conditions.

LOAD STAR

FABRIC STYLE

 

LOAD STAR 110

 

LOAD STAR 125

 

LOAD STAR 150

SPECIFICATIONS

BELT STYLE

 

2-220

3-330

4-440

 

2-250

3-375

4-500

 

2-300

3-450

4-600

5-750

Number of Plies

 

 

2

3

4

 

2

3

4

 

2

3

4

5

Working Strength PIW

Mechanical

 

220

330

440

 

250

375

500

 

300

450

600

750

Rating pounds PIW

Vulcanized

 

220

330

440

 

250

375

500

 

330

500

660

830

Approx. Carcass Gauge

 

 

.116

.165

.215

 

.128

.186

.247

 

.160

.206

.280

.354

Approx. Carcass Wt. PlW/ft

 

 

.060

.080

.115

 

060

.092

.130

 

.105

.115

.152

.192

Average Cover Wt. per 1/16"

Gauge PIW/ft.

 

.033

.033

.033

 

.033

.033

.033

 

.033

.033

.033

.033

Impact Rating (Foot-Pounds)

 

 

460

665

875

 

490

728

1031

 

680

994

1310

1497

CONVEYOR BELT CRITERIA

 

 

 

 

 

 

 

 

 

 

 

 

 

MINIMUM PULLEY DIAMETER

 

 

 

 

 

 

 

 

 

 

 

 

 

81-100% TENSION

 

16"

18"

24"

 

16"

18"

24"

 

16"

22"

28"

30"

61-80% TENSION

 

14"

16"

20"

 

14"

16"

20"

 

14"

18"

22"

24"

UP TO 60% TENSION

 

10"

12"

16"

 

12"

14"

18"

 

12"

16"

20"

20"

MINIMUM BELT  WIDTH  FOR EMPTY BELT TROUGHING

 

 

 

 

 

 

 

 

 

20 Degree Idlers

 

16"

24"

30"

 

16"

24"

30"

 

18"

24"

30"

36"

35 Degree Idlers

 

18"

24"

30"

 

18"

24"

30"

 

24"

30"

36"

36"

45 Degree Idlers

 

30"

30"

36"

 

24"

30"

36"

 

24"

30"

36"

42"

MAXIMUM BELT  WIDTH  FOR LOAD SUPPORT

 

 

 

 

 

 

 

 

 

20 Degree Idlers

0-40

#/CU.FT.

 

54"

66"

 72"

 

54"

72"

72"

 

72"

72"

72"

72"

 

41-80

#/CU.FT.

 

42"

60"

72"

 

48"

60"

72"

 

60"

66"

72"

72"

 

81-120

#/CU.FT.

 

42"

54"

72"

 

42"

54"

72"

 

54"

60"

72"

72"

 

Over 120

#/CU.FT.

 

36"

48"

60"

 

36"

48"

60"

 

48"

54"

66"

72"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

35 Degree Idlers

0-40

#/CU.FT.

 

48"

60"

72"

 

48"

60"

72"

 

60"

66"

72"

72"

 

 

 

41-80

#/CU.FT.

 

42"

54"

66"

 

42"

60"

60"

 

54"

60"

72"

72"

 

 

 

81-120

#/CU.FT.

 

36"

48"

60"

 

42"

54"

60"

 

48"

54"

66"

72"

 

 

 

Over 120

#/CU.FT.

 

30"

42"

54"

 

30"

42"

54"

 

42"

48"

60"

66"

45 Degree Idlers

0-40

#/CU.FT.

 

48"

54"

72"

 

48"

54"

72"

 

60"

60"

72"

72"

 

 

 

41-80

#/CU.FT.

 

36"

48"

60"

 

36"

48"

54"

 

48"

54"

66"

72"

 

 

 

81-120

#/CU.FT.

 

30"

42"

54"

 

30"

48"

54"

 

42"

48"

60"

66"

 

 

 

Over 120

#/CU.FT.

 

30"

36"

48"

 

NR

36"

48"

 

36"

42"

54"

60"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ELEVATOR BELT CRITERIA

 

 

 

 

 

 

 

 

 

 

 

 

 

ELEVATOR TENSION RATINGS (PIW)

 

190

280

370

 

200

290

385

 

260

390

520

645

MINIMUM PULLEY DIAMETERS

 

 

 

 

 

 

 

 

 

 

 

 

 

81-100% Tension

 

18"

18"

24"

 

16"

18"

24"

 

18"

22"

30"

36"

61-80%     Tension

 

16"

16"

20"

 

14"

16"

22"

 

16"

20"

24"

30"

Up to 60% Tension

 

12"

14"

18"

 

12"

14"

20"

 

14"

18"

20"

24"

MAXIMUM BUCKET PROJECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

100# 'CU.FT.l" OR LESS

 

 

 

 

 

 

 

 

 

 

 

 

 

Spaced Industrial

 

6"

7"

10"

 

7"

8"

10"

 

7"

9"

10"

11"

Continuous Industrial

 

5"

7"

l 0"

 

6"

8"

10"

 

7"

9"

12"

14"

LOAD STAR 200

 

LOAD STAR 250

 

LOAD STAR 300

 

LOAD STAR 300

2-400 

3-600  

4-800

5-1000

6-1200

 

2-500

3-750

4-1000

 

2-600

3-900

4-1200

5-1500

 

2-800

3-1200

4-1600

2

3

4

5

6

 

2

3

4

 

2

3

4

 5

 

2

3

4

400

600

800

1000

1200

 

500

750

1000

 

600

900

1200

1500

 

800

1200

1600

440

660

880

1100

1320

 

550

825

1100

 

660

990

1320

1650

 

880

1320

1760

.163

.225

.300

.379

.453

 

.200

.280

.380

 

.240

.370

.510

.660

 

.300

.450

.630

.105

.115

.152

.194

.235

 

.108

.152

.206

 

.130

.200

.276

.358

 

.164

.244

.341

.033

.033

.033

.033

.033

 

.033

.033

.033

 

.033

.033

.033

.033

 

.033

.033

.033

805

1000

1135

1220

1290

 

915

1115

1165

 

930

1130

1240

1300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18”

24”

30”

36”

42”

 

24”

30”

36”

 

22”

36”

42”

45”

 

 

 

 

16”

20”

24”

30”

36”

 

20”

24”

30”

 

18”

30”

33”

40”

 

 

 

 

14”

18”

20”

24”

30”

 

18”

20”

24”

 

16”

26”

30”

33”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24”

30”

36”

42”

48”

 

30”

36”

42”

 

30”

42”

48”

54”

 

 

 

 

30”

30”

36”

42”

48”

 

36”

36”

42”

 

30”

42”

48”

54”

 

 

 

 

30”

36”

42”

48”

54”

 

36”

42”

48”

 

36”

48”

54”

60”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

66”

72”

72”

72”

72”

 

72”

72”

72”

 

72”

72”

72”

72”

 

 

 

 

60”

72”

72”

72”

72”

 

66”

72”

72”

 

72”

72”

72”

72”

 

 

 

 

54”

72”

72”

72”

72”

 

60”

72”

72”

 

60”

72”

72”

72”

 

 

 

 

48”

60”

72”

72”

72”

 

54”

60”

72”

 

54”

60”

72”

72”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

66”

72”

72”

72”

72”

 

72”

72”

72”

 

72”

72”

72”

72”

 

 

 

 

60”

60”

72”

72”

72”

 

66”

66”

72”

 

60”

72”

72”

72”

 

 

 

 

54”

60”

72”

72”

72”

 

60”

66”

72”

 

54”

72”

72”

72”

 

 

 

 

48”

54”

60”

66”

72”

 

54”

60”

72”

 

48”

60”

72”

72”

 

 

 

 

60”

72”

72”

72”

72”

 

66”

66”

72”

 

72”

66”

72”

72”

 

 

 

 

54”

54”

72”

72”

72”

 

60”

66”

72”

 

54”

60”

72”

72”

 

 

 

 

48”

54”

60”

72”

72”

 

54”

54”

72”

 

48”

60”

72”

72”

 

 

 

 

42”

48”

54”

60”

72”

 

48”

48”

72”

 

42”

54”

72”

72”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

345

520

690

870

1030

 

425

630

850

 

520

755

1015

1215

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

22”

26”

36”

42”

48”

 

26”

32”

42”

 

24”

36”

45”

54”

 

 

 

 

20”

24”

30”

36”

42”

 

24”

28”

36”

 

22”

30”

38”

48”

 

 

 

 

18”

22”

24”

30”

36”

 

22”

26”

30”

 

20”

28”

33”

42”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10”

11”

12”

12”

 

10”

11”

12”

 

10”

11”

12”

12”

 

 

 

 

12”

14”

16”

20”

 

11”

14”

16”

 

13”

16”

18”