High Load Linear Bushing | NB Slide Bush TOPBALL® | RFQ Sourcing Details
Bearings And Linear Motion · Quote on request
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Product specs
Buyer's Digest
Use this page as a product-first sourcing checkpoint before sending an RFQ. Category: Bearings And Linear Motion. Confirm application fit, capacity, materials, destination, lead time and compliance requirements before comparing suppliers.
Original product description
TOPBALL® Series The TOPBALL linear motion mechanism is a self-aligning high load capacity linear ball bushing incorporating many unique features that make it an excellent choice for a wide range of applications.
TOPBALL linear ball bushings are often used in automated factory equipment and industrial machines, optical and measuring instruments, and any other application that requires precision, light weight and low cost. Download Catalog Download CAD Category: Linear Bushings | NB Slide Bush NEW!
TOPBALL® ULTIMATE TOPBALL® Structure and Advantages Types TOPBALL® Ultimate TW-H Type 4 Times the Load, 64 Times the Life of NB’s Standard Slide Bush Series The NB TOPBALL Ultimate TW-H Type is added to the TOPBALL INCH Series ULTRA-HIGH PERFORMING LINEAR BALL BEARING The new optimized load plate and outer cylinder structure increases the TOPBALL Ultimate’s load ratings by 1.3 times and travel life by 2.2 times in comparison to the standard TOPBALL TW type.
This amounts to 4 times higher load rating and 64 times longer travel life in comparison to conventional NB SLIDE BUSH types. Structure and Advantages The TOPBALL Ultimate is currently available in inch sizes 12, 16, 20 and 24.
See how the TOPBALL Ultimate outperforms NB’s conventional TOPBALL bearings and others in the market.
TW 12H TW12H Competitor (N) (lbf) (N) (lbf) Number of Ball Circuits 10 10 MAX Basic Load Rating Dynamic C C Static C MIN Basic Load Rating Dynamic C C Static C * Rated load values above are based on ISO calculation method. Rated load for other manufacturers are calculated based on actual measurements.
TW 16H TW16H Competitor (N) (lbf) (N) (lbf) Number of Ball Circuits 10 10 MAX Basic Load Rating Dynamic C C Static C MIN Basic Load Rating Dynamic C C Static C * Rated load values are based on ISO calculation method. Rated load for other manufacturers are calculated based on actual measurements.
TW 20H TW20H Competitor (N) (lbf) (N) (lbf) Number of Ball Circuits 10 10 MAX Basic Load Rating Dynamic C C Static C MIN Basic Load Rating Dynamic C C Static C * Rated load values are based on ISO calculation method. Rated load for other manufacturers are calculated based on actual measurements.
TW 24H SIZE 24 TW24H Competitor (N) (lbf) (N) (lbf) Number of Ball Circuits 10 10 MAX Basic Load Rating Dynamic C C Static C MIN Basic Load Rating Dynamic C C Static C * Rated load values are based on ISO calculation method. Rated load for other manufacturers are calculated based on actual measurements.
TOPBALL® Ultimate Types and Specifications The TOPBALL Ultimate is currently available in the 12, 16, 20 and 24 sizes. See the chart below for dimensional information and part number structures.
Download Brochure Key Benefits At-a-Glance TOPBALL products incorporate many features not found on conventional bushings, including: Self-aligning load plates To avoid problems caused by mounting or machining errors, or by shaft deflection, TOPBALL load plates feature tapered ends that compensate for slight misalignments.
This ensures more accurate performance with fewer adjustments when installing the product. Floating seals A floating seal helps maintain alignment while also ensuring the TOPBALL load plate remains consistently in .
Best of all, this is done without affecting the shape or length of the bushing, making TOPBALL bearing and linear pillow blocks suitable for miniaturized designs.
Adjustable clearance Configure the TOPBALL linear ball bushing bearing to the specific requirements of your application by using its adjustable load plates to set the desired clearance level between ball and shaft components.
Together, these unique features provide TOPBALL linear pillow block bearings with many key benefits, including: Longer travel life Likewise, higher load capacities also translate to longer travel life. Compared to conventional linear ball bushings, TOPBALL products offer up to 27 times the travel life.
Higher load capacity The precisely ground load plates allow TOPBALL to deliver rated capacity up to three times higher than conventional linear ball bushings. Higher speed TOPBALL is suitable for use in many high-speed applications, including systems moving at up to 3m/s.
For more information about the benefits of choosing TOPBALL plastic linear bearings for your application, . Available Configurations A diverse range of products supports potential applications for TOPBALL linear ball bushings. TOPBALL series are available in metric (TK) and imperial (TW) configurations.
Both include conventional closed- and open-type linear bushings, as well as the TOPBALL pillow block unit design, which optimizes performance to a specific bore tolerance. Mounting and Maintenance TOPBALL products have many mounting options.
TK-type units should be press-fitted onto the housing bore, without applying excessive force or shock loading. TW-type TOPBALL components offer various mounting methods according to the intended application. You can use NB TOPBALL linear pillow block bearings with high-precision shafts and housings.
Variances in surface roughness, hardness and diameter will all affect performance and potentially reduce travel life. Please consult product literature for recommended tolerances and other installation requirements.
Structure and Advantages Higher Load Capacity and Longer Travel life NB’s uniquely designed load plate provides circular arch , enabling TOPBALL Linear Bushing to provide up to three times the load capacity therefore 27 times the travel life of conventional slide bushings.
Self Aligning Capability Load plates are thinner at the ends to provide a pivot point at the center of the plate. The center acts as a fulcrum to compensate for any slight misalignment between the shaft and the housing bore that might be caused by inaccurate machining, mounting errors or shaft deflection.
Floating Seal NB’s unique floating seal design allows for self alignment while maintaining equal and constant . Seals do not add to the overall length of the bushing allowing for more compact designs. High Speed TOPBALL Linear Bushing meets high speed requirements. The maximum speed is 180m/min.
Clearance Adjustable TOPBALL Linear Bushing’s load plates are designed to “float” in the outer sleeve which allows for clearance between the ball elements and shaft to best suit application requirements. TOPBALL Unit – Linear Pillow Block Bearing This is a TOPBALL Linear Bushing housed unit with pillow block.
The pillow block has the most appropriate bore tolerance that optimizes TOPBALL’s performance.
Related products Linear Stroke Rotary Bushing – SR Type Slide Rotary Bush RK Type Slide Rotary Bush SRE Type Product Lineup Ball Splines | NB Ball Spline Cross Roller Guide | NB Slide Way Linear Bushings | NB Slide Bush Linear Stages | NB Actuator Linear Shafts | NB Shaft Slide Screws | NB Slide Screw Quick Links Promotional Videos Catalog Download CAD Download NB Linear
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Key specifications
- Category
- Bearings and Linear MotionBased on visible page data; confirm exact value in the RFQ.
- Unit
- setBased on visible page data; confirm exact value in the RFQ.
- (N)
- (lbf) (N) (lbf)Based on visible page data; confirm exact value in the RFQ.
- MAX Basic Load Rating
- Dynamic CBased on visible page data; confirm exact value in the RFQ.
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- Dynamic CBased on visible page data; confirm exact value in the RFQ.
- Number of Ball Circuits
- 10 10Based on visible page data; confirm exact value in the RFQ.
- Static
- CBased on visible page data; confirm exact value in the RFQ.
- TW12H
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