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| The secret of our success at Tsubaki is the use of sophisticated computerized production techniques and a dedication to detail. Tsubaki RS Roller Chain bushings are specially produced for perfect concentricity and cylindrical accuracy. Tsubaki carburizes the pin surfaces using an advanced heat treating process. The link plates and rollers are shot- peened, and the surface areas between pins and bushings and between bushings and rollers are pre-lubricated. We then pre-load our roller chains continuously and accurately on multi-sprockets after assembly. The result is a great improvement in performance. We can confidently say that in terms of wear-life, durability, and maintenance cost Tsubaki RS Roller Chain clearly outperforms the competition. |
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| High performance roller chains and bush chains for drive and conveyor systems are available from stock. Every day new items are developed and applied for special applications successfully. We produce roller chains up to size 400 with 127 mm pitch, oilfield roller chains and marine-diesel roller chains. |
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| All standard roller chains undergo continuous quality assurance and quality inspection. Iwis chains are pre-stretched, have a highly effective initial lubrication and are extremely wear-resistant with a service life significantly above the average. |
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Power transmission roller chains
BS Series
Simplex (from 8mm to 76.20mm pitch)
Duplex (from 9.525 to 76.20mm pitch)
Triplex (from 9.525 to 76.20mm pitch)
ASA Series
Simplex (from 12.70mm to 63.50mm pitch)
Duplex (from 12.70mm to 63.50mm pitch)
Triplex (from 12.70mm to 63.50mm pitch)
Other types
Stainless steel chains
Extended pitch chains
Bush chains
Guide chains |
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RKB double row taper roller bearings can take up heavy loads.
The basic styles are two row converging TDI configuration and two row diverging TDO configuration.
RKB bearings in TDI configuration have a double cone assembly and two single cups and they are generally supplied with a cup spacer.
The cup spacer is face ground after accurate measurement of the distance to obtain a predetermined internal play. Spacers or components may not be interchanged.
RKB also produces the taper roller steep contact angle TDIS version with higher thrust capacity than the TDI type.
These TDIS bearings have combination of face slots (e.g. N, N1, N2) and bore key-way for locking the cone on the shaft.
Also helical groove in the bore and lubrication grooves in side faces of double cone and/or retention sleeve with annular groove and lubrication holes can be provided.
RKB bearings in TDO configuration have a double cup, two single cone assemblies and can be supplied with a shaft supported cone spacer.
The TDO style bearings are mainly used in a floating cup mounting. Additional features of a lubrication groove and oil holes in the double cup for simplified lubrication through the outer ring are included (suffix CD).
In the TDO type the contact angle diverges, so the rigidity of the shaft mounting is increased.
Bearing sets with steep contact angle and intermediate ring, pierced rollers and steel pin-type cage (TDOS design), bearing sets with extended inner rings which abut each other (TDONA and TDONASW designs), bearing sets with heavy wall cup (TNASWH design) and bearing sets with shields of pressed steel (TDO 4422 design) are also in RKB manufacturing program. |
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RKB four row taper roller bearings are installed as complete assemblies and take axial loads in addition to heavy radial loads.
For quick roll changes, they have a loose fit on the roll necks, but there is the disadvantage that the inner rings wander on their seatings causing wear. To reduce these negative effects they have a helical groov.
RKB produces these bearings in two base designs, TQO and TQI configuration.
The TQO type is composed in its standard configuration of two double cone assemblies, one central double cup, two single cups and factory adjusted cup and cone spacers.
Lubrication grooves and oil holes are provided.
The TQI type is composed in its standard configuration of one double cone assembly, two single cone assemblies and two double cups.
A four separated individual single cups configuration is also available.
It is also available the version with tapered bore (designation TQIT and TQITE).
In RKB sealed TQOS type sets, they have been developed to improve the lubrication in service.
The seals are produced in several designs depending on bearing size and application needs; the most common are the integrated lateral unitized seals (european version), the integrated lateral narrow seals (compact seal concept) and the loose flange lateral unitized seals (japanese version).
RKB seals have been redesigned in new type to increase seal durability and efficiency: these seals optimize the available space.
Phosphate treatment for rings, rollers and spacers (suffix PT4) is also available.
RKB produces special executions of TQO made of four single cups and two double cone assemblies (design without spacers). |
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RKB multi row have low cross section, high load carrying capacity, stiffness and are used for metal rolling equipment in mills.
They are of separable design that considerably simplifies mounting, maintenance and inspection.
They can tolerate moderate to high shaft speeds. The rollers and outer races are carefully matched to ensure the best load distribution.
Inner rings (designation L) are interchangeable with other assemblies (designation R).
They have cylindrical bore and some sizes are also available with tapered bore.
The use of them in metal rolling mills exposes them to very heavy stresses.The rings and rollers can be manufactured with very high quality case hardened carburizing alloy steels. Deep case depth and special heat treatment ensure superior size stability, fracture toughness and reliability.
Where the bearings are mounted with a loose fit on the roll neck, RKB multi row cylindrical roller bearings have C2 internal radial clearance and are supplied with a helical groove in the bore and/or lubrication grooves in the side faces of the bearing rings for the efficient lubrication (e.g. suffix AC).
RKB produces the multi row cylindrical roller bearings in several construction.
The various designs differ basically in the number of inner and outer rings, in the number of loose or integral flanges on the outer ring, in the cage type, in the number of rollers in the cage pocket.
Furthermore, on order RKB can produce the bearings sealed at both sides by radial rubbing seals or with wider inner ring.
They are produced with the normal precision grade for roll neck bearings, conform to class P6 for dimensional and running accuracy to ISO 492. |
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Description
Durable twin row tapered roller bearing with spring locking collar and variety of mounting styles.
Features/Benefits
Reduced length through bore allows installation in tight spots. Split cast iron housing with replacement bearing insert units available. Self-aligning.
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Self-Aligning Tapered Roller Bearing
Offers Important User Benefits
Cost Reduction!
Advantages Not Found in One-Piece Housing |
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Brand Name:
EBI
Country of Origin:
China (mainland)
Key Specifications/Special Features:
The range of model number:
1st generation hub unit
2nd generation hub unit
3rd generation hub unit
with ABS rings/ABS wire sensors/ABS hall type sensors.
Good life performance |
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XLBearings good at manufacturing auto wheel hub units. we have designed and made more than 100 items, if you need, please send email to me, I will send the product list to you by email.
This item no. is 512175 |
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The powerful wireless components from elero can also overcome complex control tasks: whether wireless retro-fitting of existing drives, control of roller shutters or sun protection via venetian blind switches or integrated light control.
Innovative products offer installers the possibility to optimise the advantages of using wireless technology for every installation site, and develop individual radio solution from this. |
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Nexen offers an advanced new technology that revolutionizes linear motion. The Roller Pinion System (RPS) provides zero backlash, very high positional accuracy, unlimited length, very high speeds, 99% efficiency, high rigidity, low noise, low maintenance, corrosion resistance, and long life. This opens up
new design possibilities and provides the capability to achieve much higher levels of performance in machine designs.
The RPS's unique design eliminates many of the limitations of current linear drive systems like:
Ball Screws: Limited by critical speed, maximum speed, cumulative error, vibration, thermal expansion, supplemental cooling, noise, low efficiency, maintenance, and life.
Traditional Rack and Pinion: Limited by low accuracy and speed, backlash, tooth fatigue, noise, high cost of dual and split pinion systems, high maintenance, and short life.
Belt Drives: Limited by low accuracy, backlash, low load capacity, short lengths, belt stretch, and low rigidity.
Linear Motors: Limited by low load capacity, high cost, strong magnetic fields, and liquid cooling.
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| Provides a low noise and judder-free transmission. Usable up to 95°C. Made out of 100 % polyacetal plastic. (POM) Available modules 0,5 , 1 , 1,5 and 2. Immediately from stock available so no waitingtime. |
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Machining
The cutting of the concave helical ring goes from module 0.5 to 24, from a diameter of 10 mm to 1400 mm.
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Dedicated to racks & pinions drive applications, the KRP+ design is based either on the use of one single unit or on the association of two top quality planetary reducers, mounted in parallel on the machine main frame.
When used as a SingleDRIVE, the KRP+ gives the benefit of an ultra high stiffness feed gearbox, dedicated to high performances rack & pinions drive systems.
When choosing the mechanical preload solution, the KRP+ become a DualDRIVE unit, which achieve the true backlash free feature by torsionally winding one pinion against the other through the rack.
Immediate benefits are to need only one motor, and to dramatically simplify the motor control.
When choosing the Electrical preload solution, the KRP+ is used as a TwinDRIVE unit, where the backlash is cancelled by the opposite torque balance between the two pinions, according with the two motors and drives remote control. |
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Dedicated to racks & pinions drive applications, the DRP+ design is based on the association of two top quality planetary reducers, mounted in parallel on an extra high stiffness universal frame.
When choosing the mechanical preload solution, the DRP+ become a DualDRIVE unit, which achieve the true backlash free feature by torsionally winding one pinion against the other through the rack.
Immediate benefits are to need only one motor, and to dramatically simplify the motor control.
When choosing the Electrical preload solution, the DRP+ is used as a TwinDRIVE unit, where the backlash is cancelled by the opposite torque balance between the two pinions, according with the two motors and drives remote control.
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powerful diversity
Modul 2 and 3 available
2 different rack qualities
PLV and PLE combinations possible |
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