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TB Woods 3J78 Sure-Flex Plus Type J flange for Size 3 elastomeric sleeve couplings with 7/8" finished bore. Sintered carbon steel construction with setscrew locking and 3/16" x 3/32" keyseat. Rated for 78 in-lb continuous torque at up to 9,200 RPM. Pairs with any matching TB Woods Type J flange and an EPDM, Neoprene, Hytrel, or Urethane sleeve.
MODEL 3J78
Contact supplier for technical support on: 888-829-6637
$11.57 Each
Prices are subject to change
FREE SHIPPING ON ORDERS OVER $100
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Typically Ships in: 1 day
Returnable:No
Bore size
7/8 in
Bore size (in)
7/8
Bore tolerance
+.0005 to +.0015
Bore tolerance (in)
+0.0005 to +0.0015
Component WR2 (lbs ft2)
0.0009
Component WR²
0.0009
Construction type
Finish bore with keyway
Coupling size
3
Dimension (in) (C)
51/64
Dimension (in) (D)
2 1/16
Dimension (in) (H)
1 1/2
Dimension (in) (S)
3/16
Dimension (in) (T)
25/64
Dimension (in.) (E)
13/32
Flange diameter
2.062
Horsepower Rating at 100 RPM
1
Keyseat (in)
3/16 x 3/32
Keyseat size
3/16 in x 3/32 in
Length through bore
0.796875
Material type
Sintered carbon steel
Max angular gap misalignment
0.035 in
Max angular misalignment
1°
Max compatible bore size
0.875
Max parallel misalignment
1
Max RPM
9200
Max speed
9200
Min compatible bore size
0.375
Outside diameter
2.0625
Power rating at 100 RPM
0.09 kW
Screw size
Setscrew
Screw type
Flange, Type J
Set screw distance
0.1875
Setscrew length
0.25
Setscrew length (in)
1/4
Setscrew size, location
1/4 20 UNC, One over KS and at 90 Degrees
Setscrew torque requirement
3
Setscrew Torque Requirment (ft lbs)
3
SF flange length
0.390625
SF hub diameter
1.5
SF hub length
5
Torque
78 in-lb
Torque rate
78 in/lbs
Shaft Couplings and Collars The TB Woods 3J78 SF Flange is a high-performance shaft coupling designed for reliable power transmission in various industrial applications. Engineered with precision, this coupling provides exceptional durability and efficiency, making it an ideal choice for demanding environments.
Key Features
| Robust Design | Crafted to withstand high torque loads, the 3J78 SF Flange ensures reliable operation in critical applications. |
|---|---|
| Compatibility | Designed for seamless integration with standard shafts, facilitating easy installation and maintenance. |
| Material Excellence | Manufactured from high-quality materials to enhance strength and longevity, minimizing wear and extending service life. |
| Precision Engineering | Features tight tolerances and accurate dimensions, ensuring optimal alignment and minimizing vibration during operation. |
| Versatile Applications | Suitable for a wide range of industries including food and beverage, energy, and material handling. |
Applications
| Industrial Machinery | Ideal for connecting drive motors to various types of equipment, ensuring smooth power transfer. |
|---|---|
| Material Handling Systems | Perfect for conveyor systems and automated processes where reliability is crucial. |
| Pump and Fan Drives | Optimizes performance in applications requiring consistent speed and torque control. |
Benefits
| Enhanced Performance | Delivers efficient power transmission with minimal energy loss, optimizing operational efficiency. |
|---|---|
| Durability | The robust construction provides resistance to wear and tear, reducing the frequency of replacements. |
| Cost-Effective | Reduces maintenance costs and downtime, boosting productivity in industrial operations. |
SKU: 832766
Didn’t use yet
I really didn’t use them yet but the belts I received were actually Carlisle belts which are made by Timken. I had ordered a belt that I knew was Carlisle at the same time to try out the difference brands and it was the same belt. The only difference was the TB Woods belt was $10 more per belt so you might as well just buy the Carlisle/ Timken directly.
Read more
#117854
Brand
Dodge
Model
022704
#249650
Brand
Martin Sprocket
Model
3J 7/8
| Brand | Maxi-Lift |
| Model | NE18X8 P W |
| Brand | Tingley |
| Model | S78022-4XL |
| Brand | Coilhose |
| Model | 26L3-M |
| Brand | MROSupply Fasteners |
| Model | FSTPCK-396180 |
SKU: 832766
Didn’t use yet
I really didn’t use them yet but the belts I received were actually Carlisle belts which are made by Timken. I had ordered a belt that I knew was Carlisle at the same time to try out the difference brands and it was the same belt. The only difference was the TB Woods belt was $10 more per belt so you might as well just buy the Carlisle/ Timken directly.
Read moreDisclaimer: The return policy information shown below is merely a copy of the text as stated in TB Wood's Terms and Conditions.
File: http://documents.mrosupply.com/file_uploads/TB%20Woods%20Terms%20and%20Conditions.html
3. Claims for refunds or replacements must be made to the factory. Products may be returned only after written approval and a returned goods authorization number has been received from Customer Service or Application Engineering. Return shipments must be prepaid (Refer to Returned Goods Policy). Final decision about refund or replacement rests solely with TB Wood's Incorporated.
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Disclaimer: The return policy featured below is for distributors only. Also, it is merely a copy of the text from TB Wood's Distributor Policy and Procedures.
File: http://documents.mrosupply.com/file_uploads/TB%20Woods%20Distributor%20Policies%20and%20Procedures.pdf
Returned Goods
The policy for returning products for defects in workmanship or materials is covered under the “Product Reliability” section.
Distributors and, occasionally, OEMs may want to return products that are overstocked or slow moving. Prior approval and a returned goods authorization number must be obtained from Customer Service or Application Engineering. This number must be referenced on the returned goods shipment. It allows us to identify the contents of the shipment, the Distributor who originated it and the reason for return. Freight must be prepaid.
Products returned for reasons other than factory authorized stock adjustments must have approval from Customer Service or Application Engineering and a returned goods authorization number. They must be sent by prepaid freight and will be subject to a 15% restocking charge. There will be additional charges as necessary for re-boxing and refurbishing. Returned goods must have been manufactured and/or sold by TB Wood’s Incorporated and must be in salable condition. They will be inspected at the factory and if reconditioning is necessary it will be charged to the Distributor. We reserve the right to reject unsalable products.
No products will be accepted for return or exchange if they are obsolete.