INA KWVE45 B V1 G3 Linear Ball Bearing Carriage

Applications & Load Capabilities | Structural Design & Preload | Technical Specs & Installation Tips

The INA KWVE45 B V1 G3 is a linear ball bearing carriage (runner block / slider) designed for high-precision linear motion applications. Equipped for 45 mm profile rails, this carriage features a four-row, full-complement ball arrangement (O-arrangement) and light preload (V1), with G3 precision class standards.

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Applications & Load Capabilities

This carriage is tailored for:

• CNC machines, automated positioning systems, high-precision linear axes

• Industrial automation, measuring devices, robotics, motion control

• Heavy load, high rigidity setups requiring minimal clearance and accurate guiding

• Environments where axial and radial load components are present (four-row design accommodates multidirectional loads)

According to manufacturer datasheets, the carriage supports:

• Dynamic load rating (C): 69 000 N

• Static load rating (C₀): 141 000 N

• Static moments: M₀x = 3 610 Nm, M₀y = 2 485 Nm, M₀z = 2 485 Nm

• Carriage width (B) = 120 mm; overall length L = ~ 140.6 mm; height on rail = 60 mm

• Weight ≈ 3.4 kg per carriage
  (These values from product datasheet)

Thus, the INA KWVE45 B V1 G3 unit offers excellent performance in moderately demanding industrial settings.

Structural Design & Preload

Notable design features:

• Four-row (O-arrangement) full-complement design maximizes load capacity without using cages

• Flanged carriage base (INA KWVE…-B is flange type) for easy mounting on machine frames

• V1 preload means light preload — reducing internal clearance for better rigidity and responsiveness

• G3 precision class offers tight tolerances suitable for demanding applications

• Lubrication ports / connectors provided in housing, per datasheet specification

The combination of these design features ensures smooth, high-accuracy linear motion with capability for moderate misalignments.

Technical Specs & Installation Tips

Installation best practices:

• Ensure the rail is clean, aligned, and free of burrs — proper surface finish and straightness are critical

• Mount the carriage evenly and square using torque specs from INA

• Apply compatible grease before installation, and use lubrication ports regularly

• Avoid excessive misalignment or twisting during mounting

• Monitor temperature and vibration levels during initial operation

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This listing is tailored for global B2B buyers, differentiated from domestic versions on simmering.pl, to avoid SEO internal competition.

FAQ (Frequently Asked Questions)

Q: What does “V1 preload” mean in KWVE45 B V1 G3?
A: V1 indicates a light internal preload (slight preload) that reduces clearance within the carriage, improving stiffness without excessive internal stress.

Q: What is the G3 precision class?
A: G3 is a high-precision class defined by Schaeffler / INA for linear carriage tolerances — it ensures tighter dimensional control and repeatability.

Q: What is the dynamic load rating of this carriage?
A: 69,000 N (approx.), per INA’s published datasheet.

Q: Does this carriage include seals?
A: It’s typically supplied with standard seals. In many catalogs it’s listed as “Seal: Standard seals”

Q: Is the full complement design better?
A: Full complement (no cage) allows more balls in contact, increasing load capacity, though it slightly raises friction compared to caged designs.