T-Series Installation & Maintenance Guide

T-SERIES INSTALLATION & MAINTENANCE GUIDE

Tools Required:

Torque Wrench

Allen Wrenches

Straight Edge & Feeler Gauge

Dial Indicator or Laser Alignment Tool

BUILT TO PERFORM. DESIGNED TO LAST.

Technical Support 800-443-6613 Orders@Atra-Flex.com

Proper installation and maintenance are essential for reliable performance and extended coupling life.

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Atra-Flex: Installation & Maintenance Guide

T-Series: Installation Procedure

PREPARATION FOR MOUNTING HUBS: • Shaft and bore surfaces must be clean of burrs, nicks and dirt. • Shaft and bore dimensions should be checked for required fit.

MOUNTING THE RING HUB AND FLEX HUB: • Mount the Ring Hub and Flex Hub as illustrated, flush to the shaft ends if possible. If overhang is required, maintain a minimum of 1:1 shaft contact for slip fits, or 0.6:1 for interference fits of 0.0005 per inch or greater. Tighten setscrews. COUPLING ALIGNMENT • Before moving the equipment in place for alignment, the Drive Ring must be placed behind the winged section of the Flex Hub (lobe side of Drive Ring facing Ring Hub) to rest on small diameter of Flex Hub or shaft. If laser alignment is not an option, use a dial indicator to check the parallel and angular offsets. • Attach the dial indicator to the Ring Hub with the probe contacting the outside diameter of the Flex Hub. The probe should be perpendicular to shaft centerline for the parallel offset alignment check. • Rotate the Ring Hub 360° while checking the measurements of the probe at each of the 6 wings. The total indicated run out should not exceed (TIR). INSTALLING THE INSERT • Note: The insert may be one, two, or three piece depending on size and type. Once the alignment is complete, the insert can either be wrapped around, or placed inside the pockets of the Flex Hub. INSTALLING THE DRIVE RING: • Slide the Drive Ring over the Flex Hub, positioning the ring lobes over the insert lobes until you make contact with the Ring Hub. Insert one or two cap screws with lock washers through the Drive Ring and line up the cap screws with the threaded holes of the Ring Hub. Make sure the Drive Ring is fitted completely over the locator of the Ring Hub. Hand- tighten a few to get it started, then tighten down all six cap screws to the recommended torque (TT). • To check the angular offset, adjust the indicator probe to contact the face of the Flex Hub as near to the outside diameter as possible. Rotate the Ring Hub 360°, checking the readings at a minimum of three wings 120° apart. The difference between the minimum and maximum gap measurements taken at 12:00, 4:00, and 8:00 should not exceed (A). The (E) gap can then be set using the indicator or a feeler gauge at the narrowest points, ensuring the minimum (E) dimension is maintained. • Note: The (E-) axial tolerance should be reserved for thermal growth during operation. • Note: Increase (E) to a maximum of (E+) as needed if anticipated thermal growth exceeds axial tolerance (E-). • Spacer Type Coupling: (E) is measured from the face of the spacer body. The actual spacer body length is shortened from DBSE given to allow gap (E) by factory. • Floating Shaft Coupling: (TIR) = DBSE x (A) - Note: 1° @ 1.00” = .0175”

REPLACE COUPLING GUARD: Per OSHA requirements, all rotating equipment must be enclosed by a guard.

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Atra-Flex: Installation & Maintenance Guide

Alignment Tolerances

SIZE

T-0

T-1

T-2

T-3

T-4

T-5

T-6

T-7

T-8

T-9

T-10

T-11

T-12

GAP E

0.100 0.100 0.100 0.100 0.180 0.180 0.180 0.200 0.200 0.200 0.200 0.250 0.275 0.100 0.125 0.125 0.175 0.175 0.225 0.225 0.250 0.250 0.250 0.350 0.350 0.350 0.040 0.060 0.060 0.060 0.080 0.080 0.080 0.080 0.080 0.090 0.100 0.150 0.150 0.020 0.030 0.030 0.040 0.040 0.050 0.050 0.070 0.070 0.070 0.070 0.070 0.100 0.450 0.570 0.650 0.895 1.075 1.207 1.692 1.767 2.095 2.120 2.120 2.687 3.756 0.020 0.030 0.030 0.030 0.040 0.040 0.040 0.040 0.040 0.045 0.050 0.075 0.075

E + TIR

E -

PARALLEL O

O +/-

ANGULAR A °

2 °

1 °

D1 D3

2.950 3.960 4.800 6.290 7.800 9.765 11.900 13.600 14.625 18.020 19.950 23.250 28.500 2.050 2.820 3.500 4.500 5.650 7.350 8.515 10.065 10.435 13.780 15.710 17.875 20.988

TH-UNF

6-32 10-32

1/4

5/16

1/2

5/8

3/4

7/8

1-1/8 1-1/2

TT IN-LBS

210

415

1,900 1,900 3,500 3,500 6,200 8,500 12,300 15,500 46,500

RING HUB

DRIVE RING

GAP E @ 12:00

FLEX HUB

GAP E @ 8:00

GAP E @ 4:00

FLEX HUB

T-Series - Maintenance

Example: T5 = 5 x 0.050 = 0.250”

All couplings should be inspected at routine shutdowns or every six to twelve months (Or 4,500 to 9,000 operating hours), depending on the duty of the application. Remove the ring and unwrap the insert. Inspect the insert for signs of wear. Minor cracking or tearing of the belt portion of the insert will not affect coupling performance. If any cracks or tears are present in the lobes of the insert, the insert should be replaced. Normal wear appears as slight indentations in the insert lobes where the hub wings make contact. If the indents exceed approximately 0.050 X’s the size coupling, the insert should be replaced.

Up to ¼” deep indents would be permitted before insert replacement is needed on a T-5 coupling.

The alignment and gap (E dimension) of the two coupling halves should be rechecked, and adjusted if needed. The insert and ring can then be installed.

WARNING: ACCIDENTS INVOLVING ROTATING EQUIPMENT MAY RESULT IN LOSS OF LIFE, SERIOUS BODILY INJURY OR PROPERTY DAMAGE. THE PURCHASER OF THIS EQUIPMENT MUST ASSURE THAT THE EQUIPMENT IS PROPERLY ASSEMBLED, INSTALLED, SHIELDED, OPERATED AND MAINTAINED. THIS EQUIPMENT MUST NOT BE OPERATED AT CONDITIONS THAT EXCEED MANUFACTURER’S SPECIFICATIONS. PURCHASER MUST FOLLOW ALL FEDERAL, STATE AND LOCAL LAWS AND REGULATIONS COVERING THE SAFE OPERATION AND MAINTENANCE OF THE EQUIPMENT, WITHOUT LIMITATION, THE USDOL-OSHA “LOCKOUT/TAGOUT” PROCEDURE SET FORTH IN 29 CFR 1910.147. IT IS THE PURCHASERS RESPONSIBILITY TO IMPLEMENT AND FOLLOW ITS OWN SAFETY, MAINTENANCE, AND EMPLOYEE TRAINING PROGRAM REGARDING THE SAFE AND PROPER OPERATION AND MAINTENANCE OF THE EQUIPMENT. !

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EXCELLENCE THROUGH INNOVATION SINCE 1917 For over 100 years, Tsubaki has developed and manufactured the highest-quality products for power transmission and motion control. With a vast network of global production facilities, R&D Tsubaki remains committed to providing innovative solutions to customers’ problems for the next 100 years.

Corporate Headquarters U.S. Tsubaki Power Transmission, LLC 301 E. Marquardt Drive Wheeling, IL 60090 847.459.9500

Roller Chain Manufacturing 821 Main Street Holyoke, MA 01040 847.459.9500

Engineering Class Chain Manufacturing 1010 Edgewater Drive Sandusky, OH 44870 419.626.4560

Sprocket Manufacturing 1630 Drew Road Mississauga, ON L5S 1J6 847.459.9500

Cable & Hose Carrier Manufacturing 7100 W. Marcia Road Milwaukee, WI 53224 414.354.1994

Coupling Manufacturing

110 E. Garry Avenue Santa Ana, CA 92707 714.432.8411

Note: In accordance with the policy of U.S. Tsubaki Power Transmission, LLC to consistently improve its products, the specifications in this brochure are subject to change without notice. The logos, brand names or product names in this brochure are trademarks or registered trademarks of Tsubakimoto Chain Co. and its subsidiaries in Japan, the U.S. and other countries.

06/26

Rev. 2

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