Timken Fafnir 2MM9109WI Ball Bearing P4S Super Precision With Steel Balls Go-To High-Performance Angular Bearing 15 Degree Contact Inner Diameter 1.7717 In Outer Width 0.6299 In Ball Diameter 0.34375 In Machinery Ready
UPC:
✔️ ID 1.7717 in, OD 2.9528 in, width 0.6299 in, 15° contact.
Timken Fafnir 2MM9109WI is a high-precision angular contact ball bearing designed for spinning machinery, CNC spindles, and automation setups that demand exact shaft alignment and steady load support. This 15° contact bearing uses a CR phenolic outer land riding cage for smooth, reliable performance at high speeds.
✅ Inner diameter: 1.7717 in (45.00 mm)✅ Outer diameter: 2.9528 in (75.00 mm)
✅ Width: 0.6299 in (16.00 mm)
✅ Ball diameter: 0.34375 in (8.74 mm)
✅ Cage: CR - Phenolic Outer Land Riding Cage
✅ Contact angle: 15°
✅ Precision class: ISO P4S (ABEC 7/9)
✅ Dynamic radial rating: 6080 lbf (27.0 kN)
✅ Static radial rating: 4330 lbf (19.3 kN)
✅ Limiting speed (grease): 17900 rpm
✅ Limiting speed (oil): 35800 rpm
✅ I.D. clearance radius: 0.039 in (0.99 mm)
✅ Outer ring clearance radius: 0.039 in (0.99 mm)
✅ Inner ring backing diameter: 2.020 in (51.31 mm)
✅ Outer ring backing diameter: 2.730 in (69.36 mm)
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Q&A for SEO
💡 What is a high-precision angular bearing used for in precision machinery? This handy component helps keep shafts aligned and loads balanced in demanding equipment.
- Hand‑friendly usage in CNC spindles and servo systems for accurate runout control
- Handy in automation and robotics setups requiring tight tolerance and repeatability
- Useful where angular contact supports both radial and axial loads at high speeds
- Requires proper lubrication and mounting alignment for maximum life and performance