Overview
The Rexroth R074053000 is a precision flange linear bushing engineered for demanding industrial automation and linear motion applications. This unit combines robust construction with advanced bearing technology to deliver reliable performance in challenging environments. The bushing is designed for 30mm shaft diameter applications and features integrated engineering that supports both standard and heavy-load operational scenarios across woodworking, foundries, cement plants, and other demanding industries.
Key Features
- Rugged all-metal construction with hardened and machined outer sleeve for durability in harsh conditions
- Steel ball retainer rated for heavy contamination and demanding environments
- Extended lubrication capability with multiple pockets serving as lubricant reservoirs for life-long lubrication or extended intervals
- Integrated wiper seals that protect internal components from contamination while maintaining smooth linear motion
- POM ball retainer and rolling bearing steel balls for consistent load distribution and minimal wear
- Flange design for simplified mounting and installation in standard industrial applications
Technical Specifications
- Model Number: KBMF-30-DD
- Part Number: R074053000
- Shaft Diameter: 30 mm
- Type: Flange Linear Bushing, Standard Metal Series
- Sealing: Two integrated wiper seals
- Weight (Unpacked): 0.470–0.480 kg
- Ball Retainer Material: POM (polyoxymethylene)
- Bearing Balls Material: Rolling bearing steel
- Outer Sleeve: Hardened and machined steel
- Load Ratings: Dynamic and static capacities available; consult manufacturer for application-specific requirements
- Lubrication: No initial lubrication required; designed for extended intervals or life-long lubrication with grease per DIN 51825
- Installation Dimensions: Interchangeable with Super Linear Bushings per Rexroth standard specifications
Typical Applications
- Woodworking machinery — spindle assemblies, feed mechanisms, and precision guides requiring smooth linear motion
- Foundries and heavy processing — high-contamination environments where seal integrity and durability are critical
- Cement and aggregate handling — dust and debris-laden applications requiring robust sealing and bearing protection
- Automation equipment — industrial machinery requiring precise linear positioning with minimal maintenance
- Food and chemical processing — when paired with stainless steel variants; standard version suitable for general industrial use
- Manufacturing systems — transfer lines, material handling conveyors, and precision positioning assemblies
Compatibility & Replacements
Compatible With
- 30 mm hardened and ground precision steel shafts (minimum HRC 60)
- Rexroth linear motion systems and standard industrial linear guides
- Standard linear shaft mounting configurations and linear bushing assemblies
- Standard mounting flange patterns for automated machinery and press applications
Replaces / Drop-In Replacement For
- This unit is interchangeable with other Rexroth KBMF-30 flange linear bushings with matching dimensional specifications
- Installation dimensions match Rexroth Super Linear Bushing equivalents, though load ratings and radial clearance may differ
- Verify compatibility with your system integrator before ordering to confirm load requirements and clearance specifications
Works With
- DIN 51825-compliant grease lubricants (recommended for extended service life)
- Standard industrial lubrication schedules and maintenance protocols
- Rexroth linear shaft and bearing product lines
- OEM machinery requiring 30 mm diameter linear motion components
- Manual and automated machinery requiring precision linear guidance
