IR 9x12x16 INA - Inner Ring 9x12x16

Main Description

The IR 9x12x16 INA Inner Ring is a precision-hardened component designed for use with needle bearings, especially in applications where the shaft surface is not sufficiently hardened or ground to serve as a raceway. With dimensions 9x12x16 mm, this inner ring ensures optimal rolling contact, improved load distribution and extended service life of the entire bearing assembly.

The hardened and ground raceway provides exceptional wear resistance, low friction and stable running even under fluctuating loads. The IR 9x12x16 INA is widely used in compact industrial drives, gearboxes, transport machinery, agricultural equipment and automation systems that require high reliability in limited space. It enables needle bearings to handle significant radial loads while maintaining smooth operation and precise alignment.

Using a dedicated inner ring eliminates the need for heat-treating or grinding the shaft, reducing assembly time and improving uniformity across production. When paired with needle bearings, the ring integrates easily into bearing housings and bearing units, forming a durable and efficient support system suitable for demanding industrial applications.

Key Advantages

• hardened and ground inner ring providing excellent durability

• ideal for use with needle bearings in compact mechanical assemblies

• increased wear resistance and load stability

• enables highPerformance even on non-hardened shafts

• long service life in continuous industrial operation

The IR 9x12x16 INA is a dependable solution for engineers seeking a stable, wear-resistant and maintenance-efficient inner ring for precision industrial mechanisms.

FAQ - Frequently Asked Questions

Q: What are the dimensions of the IR 9x12x16 INA inner ring?
A: 9 mm inner diameter, 12 mm outer diameter, 16 mm length.

Q: When should an inner ring be used with needle bearings?
A: When the shaft surface is not hardened or when a consistent, high-quality raceway is required.

Q: Does the inner ring improve bearing durability?
A: Yes - it provides an optimal rolling surface, significantly extending bearing life.

Q: Can it be used in high-load applications?
A: Yes, it works well with needle bearings that carry high radial loads.

Q: Does installation require special tools?
A: No - it installs easily and does not require heat-treating the shaft.