QIBR can supply the inner ring of needle roller bearings separately. In applications where the shaft cannot be hardened and ground, the inner ring is usually used with a needle roller-cage assembly or a drawn cup needle roller bearing. QIBR supplies two series of inner rings: IR series and LR series
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Showing 1 - 25 of 190 Products
| No. | Product | Product model | Inner diameter | Total width | Chamfer dimension | Weight | Outer diameter |
|---|---|---|---|---|---|---|---|
| 1 | | IR 100x110x40 | 100 mm | 40 mm | 1.1 mm | 0.51 kg | 110 mm |
| 2 | | IR 100x115x40 | 100 mm | 40 mm | 1.1 mm | 0.8 kg | 115 mm |
| 3 | | IR 10x13x12.5 | 10 mm | 12.5 mm | 0.3 mm | 0.0052 kg | 13 mm |
| 4 | | IR 10x14x13 | 10 mm | 13 mm | 0.3 mm | 0.0074 kg | 14 mm |
| 5 | | IR 10x14x16 | 10 mm | 16 mm | 0.3 mm | 0.0092 kg | 14 mm |
| 6 | | IR 10x14x20 | 10 mm | 20 mm | 0.3 mm | 0.012 kg | 14 mm |
| 7 | | IR 110x120x30 | 110 mm | 30 mm | 1 mm | 0.41 kg | 120 mm |
| 8 | | IR 110x125x40 | 110 mm | 40 mm | 1.1 mm | 0.84 kg | 125 mm |
| 9 | | IR 120x130x30 | 120 mm | 30 mm | 1 mm | 0.44 kg | 130 mm |
| 10 | | IR 120x135x45 | 120 mm | 45 mm | 1.1 mm | 1.05 kg | 135 mm |
| 11 | | IR 12x15x12 | 12 mm | 12 mm | 0.3 mm | 0.0057 kg | 15 mm |
| 12 | | IR 12x15x12.5 | 12 mm | 12.5 mm | 0.3 mm | 0.0061 kg | 15 mm |
| 13 | | IR 12x15x16 | 12 mm | 16 mm | 0.3 mm | 0.0076 kg | 15 mm |
| 14 | | IR 12x15x16.5 | 12 mm | 16.5 mm | 0.3 mm | 0.0081 kg | 15 mm |
| 15 | | IR 12x15x22.5 | 12 mm | 22.5 mm | 0.3 mm | 0.011 kg | 15 mm |
| 16 | | IR 12x16x13 | 12 mm | 13 mm | 0.3 mm | 0.0085 kg | 16 mm |
| 17 | | IR 12x16x16 | 12 mm | 16 mm | 0.3 mm | 0.011 kg | 16 mm |
| 18 | | IR 12x16x20 | 12 mm | 20 mm | 0.3 mm | 0.014 kg | 16 mm |
| 19 | | IR 12x16x22 | 12 mm | 22 mm | 0.3 mm | 0.015 kg | 16 mm |
| 20 | | IR 130x145x35 | 130 mm | 35 mm | 1.1 mm | 0.86 kg | 145 mm |
| 21 | | IR 130x150x50 | 130 mm | 50 mm | 1.5 mm | 1.7 kg | 150 mm |
| 22 | | IR 140x155x35 | 140 mm | 35 mm | 1.1 mm | 0.92 kg | 155 mm |
| 23 | | IR 140x160x50 | 140 mm | 50 mm | 1.5 mm | 1.8 kg | 160 mm |
| 24 | | IR 14x17x17 | 14 mm | 17 mm | 0.3 mm | 0.0095 kg | 17 mm |
| 25 | | IR 150x165x40 | 150 mm | 40 mm | 1.1 mm | 1.1 kg | 165 mm |
QIBR needle roller bearing inner ring solves multiple key problems in various fields, mainly reflected in the following aspects:
1. Precision machining
Needle roller bearing inner rings are usually manufactured through high-precision machining processes, such as cylindrical grinding, inner hole machining, etc., to ensure dimensional accuracy and surface finish, ensure smoother contact between the needle roller and the inner ring, and reduce friction loss.
2. Hardening treatment
In order to improve wear resistance and extend service life, the inner ring is often heat treated (such as quenching and tempering) to increase surface hardness and improve wear resistance.
3. Lightweight design
Since the inner ring of the needle roller bearing is designed to provide support and guidance, its design usually has a lighter structure, reducing the weight of the entire bearing and adapting to high speed and low friction requirements.
4. Wear resistance and fatigue strength
The material and processing method of the inner ring ensure that it maintains good performance during long-term operation. Its wear resistance and fatigue resistance enable the bearing to continue to work under harsh conditions and provide stable performance.
1. Surface coating
By applying a layer of wear-resistant and corrosion-resistant coating (such as hard coating, ceramic coating, etc.) on the surface of the inner ring, the wear resistance, corrosion resistance and oxidation resistance of the inner ring can be improved, thereby enhancing its performance in harsh environments.
2. Nitriding treatment
The nitriding treatment of the inner ring can form a hardened layer on its surface, improve the anti-friction performance and reduce wear. In addition, the nitriding layer also has strong corrosion resistance.
3. Precision machining
Through higher precision machining methods such as grinding and ultra-precision machining, the surface finish and flatness of the inner ring are further improved, the friction coefficient is reduced, and it can maintain better stability under high speed and high load conditions.
4. Heat treatment
By quenching the inner ring, the hardness and wear resistance of the inner ring surface are improved, and the fatigue resistance and impact resistance are enhanced. This treatment can effectively extend the service life of the inner ring.
