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RA Crossed Roller Bearings RA7008

RA Crossed Roller Bearings RA7008

The RA7008 is a compact crossed roller bearing measuring 70mm in bore, 86mm in outer diameter, and just 8mm wide. Made from sturdy steel, it handles combined loads with a basic load rating of 5.98 kN.

Its open design allows easy lubrication through 2mm and 0.8mm greasing holes, ensuring smooth operation. The bearing is press-fit mounted, making installation straightforward for various applications.

With a temperature range of 0 to 230°F, it suits environments requiring moderate heat resistance. Compliant with RoHS and REACH standards, it’s a reliable choice for precision equipment like robotics or medical devices.

Weighing only 0.1kg, it offers a lightweight yet durable solution for space-constrained designs. Available in ABEC5, with options for higher precision grades (ABEC7/9) upon request.

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Product Parameters

  • Part Number RA7008
  • Brand TFL
  • Size 70 mm x 86 mm x 8 mm
  • Bore Dia 70 mm
  • Outer Dia 86 mm
  • Width 8 mm
  • Greasing Hole(a) 2 mm
  • Greasing Hole(b) 0.8 mm
  • R(min) 0.5 mm
  • Shoulder Height Ds(max) 73.5 mm
  • Shoulder Height Dh(min) 80.5 mm
  • System of Measurement Metric
  • Bearing Type Roller
  • Roller Bearing Type Crossed
  • For Load Direction Combined
  • Construction Single Row
  • Seal Type Open
  • Holes Without Holes
  • Ring Material Steel
  • Roller Material Steel
  • Basic Load Rating C 5.98 kN
  • Basic Load Rating Co 9.8 kN
  • Lubrication Required
  • Shaft Mount Type Press Fit
  • Temperature Range 0 -230 °F
  • ABEC Rating ABEC5(Available in ABEC7/9)
  • RoHS Compliant
  • REACH Compliant
  • Weight 0.1 Kg

Features

Performance Features of RA7008 Bearing

RA7008 Bearing is designed with a crossed roller arrangement, offering high precision and stability for combined load applications.
Its steel rings and rollers provide a basic load rating of 5.98 kN, ensuring reliable performance.
The compact 8 mm width and press-fit shaft mount make it suitable for space-constrained installations.
With a temperature range of 0-230°F, it performs well in various operating conditions.

How Is RA7008 Bearing Engineered for Reliability?

RA7008 Bearing features a single-row crossed roller design, enhancing rigidity and load distribution.
The steel construction ensures durability, with a basic static load rating of 9.8 kN.
Its open seal type allows for easy lubrication, maintaining smooth operation.
The ABEC5 rating guarantees precision, with options for higher ABEC7/9 grades if needed.

Built for Reliability: RA7008 Bearing

RA7008 Bearing’s crossed roller configuration provides excellent resistance to combined loads.
The press-fit shaft mount ensures secure installation, reducing the risk of misalignment.
With greasing holes of 2 mm and 0.8 mm, lubrication is straightforward and effective.
Its operating temperature range of 0-230°F makes it versatile for various environments.

Application

Industrial Uses of RA7008 Bearing
RA7008 Bearing is commonly used in machine tools, where its crossed roller design provides excellent stability and precision. The steel construction ensures durability in demanding industrial environments.

In robotics, RA7008 Bearing supports articulated arms, offering smooth rotation under combined loads. Its compact 8mm width makes it ideal for space-constrained applications.

For medical imaging devices, RA7008 Bearing’s ABEC5 precision ensures accurate positioning of moving parts. The press-fit mounting simplifies installation in sensitive equipment.

RA7008 Bearing also works well in automation systems, particularly for rotary tables and indexing mechanisms. The open design allows for easy lubrication to maintain performance.

In packaging machinery, RA7008 Bearing handles the rapid movements of conveyor belts reliably. Its metric sizing ensures compatibility with European and Asian equipment standards.

Q&A

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