Chromium Steel Machined Inner Ring for Needle Bearings - MI Series 0.375" to 8.000" Bore Diameter Range
Precision-machined chromium steel inner rings designed for needle bearing applications in inch sizes. These components provide hardened raceways for rollers when used with unhardened shafts, ensuring optimal performance and longevity in demanding industrial environments.
- Precision ground inner ring with hardened raceway for roller bearings
- Oil hole and annular groove for convenient re-lubrication
- Compatible with CAGEROL and GUIDEROL bearing systems
- Can function as a bushing in plain bearing applications
- Improved load-bearing capacity and rotational accuracy
- Reduced wear and tear through precise machining
- Available in High-Alloy Bearing Quality Steel 100Cr6 and Stainless Steel 440C
Essential components for various bearing types including ball bearings, roller bearings, and needle bearings. Widely used across automotive, aerospace, industrial machinery, and power transmission industries.
| Part No. | Bore Dia. (A) | Bore Tolerance | Inner O.D. (B) | O.D. Tolerance | Width (W) | Height (H) | Radius Max |
|---|---|---|---|---|---|---|---|
| MI-6 | 0.3750" | -0.0004" | 0.6245" | -0.0004" | 1.010" | 3/32" | 0.025" |
| MI-8 | 0.5000" | -0.0004" | 0.7493" | -0.0005" | 1.010" | 1/8" | 0.040" |
| MI-12 | 0.7500" | -0.0004" | 0.9993" | -0.0005" | 1.010" | 1/8" | 0.040" |
| MI-16 | 1.0000" | -0.0005" | 1.2491" | -0.0006" | 1.260" | 1/8" | 0.040" |
| MI-24 | 1.5000" | -0.0005" | 1.7490" | -0.0006" | 1.260" | 1/8" | 0.060" |
| MI-32 | 2.0000" | -0.0005" | 2.2489" | -0.0007" | 1.760" | 3/16" | 0.080" |
| MI-48 | 3.0000" | -0.0006" | 3.4987" | -0.0009" | 2.010" | 1/4" | 0.080" |
| MI-80 | 5.0000" | -0.0010" | 5.9983" | -0.0010" | 3.015" | 5/16" | 0.120" |
| MI-128 | 8.0000" | -0.0012" | 9.2480" | -0.0012" | 3.015" | 5/16" | 0.160" |
- High-Alloy Bearing Quality Steel 100Cr6
- Stainless Steel 440C
MOUETTE offers comprehensive interchange tables including McGill machined inner rings, INA inner rings, Koyo inner rings, Torrington inner race, and SKF inner ring alternatives. Contact our technical sales team for bearing capabilities beyond our standard offering.
Email: sales@mouettemachinery.com
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.