Ba25 Dxg One Way Sprag Clutch with Lever Arm
Complete Freewheels BA XG and BC XG
with sprag lift-off X and grease lubrication
Data Sheet
Product Name | Quality Complete Sprag Freewheels BA..XG BC..XG Series Used As Backstops |
Item | BA...XG BC...XG |
Weight | 5-260 kg |
Norminal Torque | 400-42500 Nm |
Width | 77-276 mm |
Bore Size | 30-150 mm |
Outer Diameter | 106-411 mm |
Material | GCr15 |
Precision | P6 |
Application | Gearboxes,reducers and other industrial machines |
Features
Complete Freewheels BA XG and BC XG with lever arm are sprag freewheels with sprag
lift-off X and grease-lubricated ball bearings. The sprag lift-off X ensures wear-free freewheeling operation when the inner ring rotates at high speed. The freewheels BA XG have an end cover and are fitted to shaft ends.
The freewheels BC XG are arranged on
through shafts or shaft ends. The freewheels BA XG and BC XG are used as:
Backstops
for applications with high speed freewheeling operation.
Nominal torques up to 42 500 Nm. Bores up to 150 mm.
Different Freewheel Sizes of BA...X BC...X You May Choose
Freewheel Size | Type | Nominal Torque MN Nm | Sprag lift-off at inner ring speed min-1 | Max. speed Inner ring freewheels min-1 | Bore d | A mm | C mm | D mm | E mm | H mm | K mm | L mm | N mm | O mm | P mm | Q mm | R mm | S for Screw | Weight kg |
Standard | max. mm |
mm | mm | mm |
BA20 | BC20 | DXG | 400 | 750 | 2500 | 30 | | | 30 | 110 | 90 | 106 | 8 | 80 | 2,5 | 77 | 11 | 104 | 19,5 | 65 | 70 | M 10 | 5 |
BA25 | BC25 | DXG | 650 | 700 | 2350 | 35 | 40 | | 40 | 126 | 100 | 126 | 8 | 90 | 2,5 | 93 | 11 | 125 | 19,5 | 75 | 80 | M 12 | 8 |
BA30 | BC30 | DXG | 1 100 | 630 | 2350 | 45 | 50 | | 50 | 155 | 120 | 151 | 10 | 120 | 3,5 | 102 | 16 | 140 | 27,5 | 95 | 100 | M 16 | 12 |
BA40 | BC40 | SXG | 1 400 | 430 | 2200 | 45 | 55 | 60 | 60 | 190 | 150 | 181 | 12 | 160 | 5,5 | 116 | 22 | 160 | 37,5 | 130 | 120 | M 16 | 20 |
BA45 | BC45 | SXG | 2 300 | 400 | 2200 | 55 | 65 | 70 | 70 | 210 | 160 | 196 | 14 | 175 | 7,5 | 130 | 26 | 176 | 41,5 | 140 | 130 | M 16 | 25 |
BA52 | BC52 | SXG | 4 900 | 320 | 2200 | 65 | 75 | 80 | 80 | 230 | 190 | 216 | 14 | 200 | 4,5 | 150 | 26 | 208 | 41,5 | 160 | 150 | M 20 | 35 |
BA55 | BC55 | SXG | 6 500 | 320 | 2000 | 75 | 85 | 90 | 90 | 255 | 200 | 246 | 15 | 210 | 3,5 | 170 | 29 | 228 | 49,5 | 170 | 160 | M 20 | 50 |
BA60 | BC60 | SXG | 14 500 | 250 | 1800 | 85 | 95 | 100 | 105 | 295 | 220 | 291 | 20 | 250 | 8,5 | 206 | 35 | 273 | 60,5 | 200 | 190 | M 24 | 91 |
BA70 | BC70 | SXG | 21 000 | 240 | 1650 | 120 | | | 120 | 335 | 260 | 321 | 25 | 280 | 14,5 | 215 | 39 | 291 | 65,5 | 225 | 210 | M 24 | 115 |
BA 100 | BC 100 | UXG | 42 500 | 210 | 1450 | 150 | | | 150 | 420 | 380 | 411 | 45 | 345 | 31,5 | 276 | 60 | 372 | 80,5 | 280 | 270 | M 30 | 260 |
Application example
Complete Freewheel BA 52 SXG as a backstop on a radial fan. The backstop prevents a reverse rotation of the fan shaft from air flow or from an incorrectly polarized drive motor. By pulling out the holding pin in the lever arm, the shaft can be turned in both directions in order to carry out maintenance work. With the high shaft speed, the type with sprag lift-off X is used; the sprags work in freewheeling operation without contact and hence are wear-free.
Mounting
The backdriving torque is supported by the lever arm with holding pin. The holding pin engages in a slot or bore in the frame of the machine. It must have 0,5 to 2 mm play in the axial
and radial directions. If the holding pin is removed, the shaft can be turned in both directions.
The tolerance of the shaft must be ISO h6 or j6. The freewheels BC XG are supplied ready for installation. In the case of freewheels BA XG, the inner ring must be secured axially with a retainer plate.
Example for ordering
Freewheel size BC 45 type with sprag lift-off X, grease lubrication and 65 mm bore:
BC 45 SXG, d = 65 mm
When ordering, please also specify the freewheeling direction of the inner ring when
viewed in direction X:
counterclockwise free or
clockwise free
Company Information
Changzhou Suma Precision Machinery Co., Ltd(Changzhou Tianniu Clutch Factory)is a manufacturer specialized in Producing Various cam clutch, one way bearing, one way clutch, backstop clutch, overrunning clutch and other bearings with high technology.
We are following "Best Quality, Best Price, Fast Delivery, Best Serves" to make all of our old and new customers satisfied.
Our Advantages
1. Advanced producing equipment.
2. Strict requirement for the raw material
3. Complete&perfect process flow
4. Good quality of each batch of the product
5. Different grades of price for different quality
FAQ:
Q: Why do we choose your company?
A: We always insist quality first. We have our bearing factory, therefore we have advantage in quality control and price of one way clutch bearing.
Q:What is the delivery time?
A: Most of the bearing we have stock. For small quantity, we will arrange delivery within 15 days.
Q: What is your payment term?
A: Our payment term include L/C, T/T, Western Union, Paypal etc.
Q: Can you send bearing samples first?
A: Yes, we can send bearing samples of one way clutch bearing to check quality first.
If you have any needs,pls contact me at any time!