Four-Point Contact Bearings with Extended Inner Ring
Made in Germany
Product description
Neuweg Four-Point Contact Bearings with Extended Inner Ring are engineered for demanding agricultural and industrial applications requiring high load-carrying capability, exceptional durability and reliable long-term performance.
Designed to accommodate high axial loads in both directions together with moderate radial loads, these bearings provide a robust solution for machinery operating under challenging conditions. The extended inner ring design enhances mounting stability and load distribution, helping to improve operational reliability and support demanding duty cycles.
To maximise service life in harsh environments, these bearings are equipped with specialised sealing arrangements and a protective flinger design. Together, these features help prevent the ingress of dust, dirt and moisture while maintaining effective lubrication, reducing wear and minimising maintenance requirements.
Particularly well suited to sowing equipment, strip-till systems and tillage machinery, Neuweg Four-Point Contact Bearings with Extended Inner Ring deliver the reliability and durability required for modern agricultural applications.
Manufactured to the highest quality standards, they provide dependable performance where uptime, productivity and long service life are critical.
Key Benefits:
- Extended Inner Ring Design: Provides enhanced support, improved mounting stability and reliable load transmission under demanding operating conditions.
- High Load-Carrying Capability: Designed to accommodate high axial loads in both directions together with moderate radial loads, making them suitable for heavy-duty applications.
- Advanced Contamination Protection: Special sealing systems and an integrated flinger help protect against dirt, dust and moisture, extending bearing life and maintaining performance.
- Reduced Maintenance Requirements: Effective sealing and lubrication retention help minimise maintenance interventions and reduce operating costs.
- Long Service Life: Robust construction and premium materials deliver reliable performance in harsh agricultural and industrial environments.
- Application-Specific Performance: Optimised for sowing machinery, strip-till equipment, tillage systems and other demanding applications requiring dependable load support and durability.
Typical Applications:
- Sowing Machines
- Strip-Till Equipment
- Tillage Machinery
- Agricultural Implements
- Soil Preparation Equipment
- Heavy-duty industrial machinery
- Special Purpose Equipment
- Special Purpose Equipment
Drawing on decades of experience in bearing design and manufacture, Neuweg develops bearing solutions that help equipment manufacturers improve reliability, reduce maintenance and maximise productivity in the field.
Lubrication & Sealing
Four-Point Contact Ball Bearings are available in configurations suited to different operating environments, including:
- Open designs for applications with controlled lubrication systems
- Pre-lubricated variants for reduced maintenance requirements
Selection of lubrication type should be based on operating speed, load conditions, and environmental exposure.
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Technical Specifications
The table below provides dimensional, load, and speed data for Neuweg Four-Point Contact Ball Bearings. This information is intended to support preliminary selection and comparison. Detailed operating limits, mounting recommendations, and application guidance should be confirmed through consultation with Neuweg’s engineering team.
| d (mm) | D (mm) | B (mm) | r min (mm) | Cr (N) | C0a (N) | Grease (min⁻¹) | Oil (min⁻¹) | Bearing No. | a0 (mm) | da min (mm) | Da max (mm) | ra max (mm) | Approx. Mass (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30 | 62 | 16 | 1.0 | 31000 | 45000 | 8500 | 12000 | QJ206 | 32.2 | 36 | 56 | 1.0 | 0.240 |
| 35 | 72 | 17 | 1.1 | 41000 | 61500 | 7500 | 10000 | QJ207 | 37.5 | 42 | 65 | 1.0 | 0.350 |
| 40 | 80 | 18 | 1.1 | 49000 | 77500 | 6700 | 9000 | QJ208 | 42.0 | 47 | 73 | 1.0 | 0.450 |
The extended inner ring provides increased axial guidance and improved shaft support, allowing the bearing to accommodate specific mounting arrangements and alignment requirements.
Extended inner ring variants are typically selected when additional axial location is required, when shaft shoulders are limited, or where improved alignment stability is beneficial.
The extended inner ring primarily improves mounting stability and load distribution at the shaft interface. Load capacity is governed by the bearing’s internal geometry and contact design.
Yes. The extended inner ring can simplify installation by improving axial positioning and reducing the need for additional shaft components or spacers.
Yes. Like standard four-point contact bearings, they support axial loads in both directions, in addition to radial loads.
They are well suited to axial-dominant applications where controlled shaft positioning and compact bearing arrangements are required.
Selection depends on shaft design, axial positioning requirements, and available installation space. Neuweg can provide guidance based on your application parameters.
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