Ball Type Internal Gear (BTI)
Slewing bearings support heavy axial and radial loads, along with upsetting moments. They have inner and outer rings with mounting holes, lubrication channels, and gears. Induction-hardened raceways offer wear resistance, durability, and high load capacity. Precision-ground and heat-treated gear teeth ensure smoothness and accuracy. SunUs makes standard and custom slewing bearings, up to 2500mm in diameter, for versatile applications.
| Precision Level |
  |
|---|---|
| Torsional Rigidity |
|
| Price Range |
|
- Industry Applications
- CNC Machine Tools
- Factory Automation
- Special Purpose Machines (SPMs)
- Engineering Machinery
High-load capacity
High stiffness for rugged bearing applications
Low friction
Long service life
Surface protection and corrosion-resistance
(This product has no 1-stage or 2-stage distinction)
| Part No. | Size | Installation Hole | Gear Dimensions | Tooth Force | Axial Load | Weight | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Outer ring | Inner ring | Pitch diameter | Module | Number of teeth | Addendum Modification | Nominal | Maximum | Dynamic | Static | |||||||||||||||
| dm | Da | di | H | H1 | H2 | H3 | Le | Ne | Be | Li | Ni | Bi | t | N1 | D | m | z | x.m | Tfn | Tfmax | C | Co | ||
| mm | mm | mm | mm | mm | mm | mm | KN | KN | kg | |||||||||||||||
| BTI.20.0414 | 414 | 486 | 326.5 | 56 | 44.5 | 44.5 | 28 | 460 | 24 | 13.5 | 375 | 24 | M12 | 24 | 3 | 335 | 5 | 67 | +0.75 | 16 | 46 | 209 | 1010 | 31 |
| BTI.20.0544 | 544 | 616 | 445.2 | 56 | 44.5 | 44.5 | 28 | 590 | 32 | 13.5 | 505 | 32 | M12 | 24 | 4 | 456 | 5 | 76 | +0.6 | 17 | 50 | 233 | 1350 | 42 |
| BTI.20.0644 | 644 | 716 | 547.2 | 56 | 44.5 | 44.5 | 28 | 693 | 36 | 13.5 | 605 | 36 | M12 | 24 | 4 | 558 | 6 | 93 | +0.6 | 21 | 56 | 248 | 1580 | 50 |
| BTI.20.0744 | 744 | 816 | 649.2 | 56 | 44.5 | 44.5 | 28 | 790 | 40 | 13.5 | 705 | 40 | M12 | 24 | 4 | 660 | 6 | 110 | +0.6 | 21 | 56 | 262 | 1840 | 58 |
| BTI.20.0844 | 844 | 916 | 737.6 | 56 | 44.5 | 44.5 | 28 | 890 | 40 | 13.5 | 805 | 40 | M12 | 24 | 4 | 752 | 8 | 94 | +0.8 | 25 | 72 | 276 | 2100 | 59 |
| BTI.20.0944 | 944 | 1016 | 841.6 | 56 | 44.5 | 44.5 | 28 | 990 | 44 | 13.5 | 905 | 44 | M12 | 24 | 4 | 856 | 8 | 107 | +0.8 | 25 | 72 | 286 | 2340 | 76 |
(This product has no 1-stage or 2-stage distinction)
| Part No. | Size | Installation Hole | Gear Dimensions | Tooth Force | Axial Load | Weight | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Outer ring | Inner ring | Pitch diameter | Module | Number of teeth | Addendum Modification | Nominal | Maximum | Dynamic | Static | |||||||||||||||
| dm | Da | di | H | H1 | H2 | H3 | Le | Ne | Be | Li | Ni | Bi | t | N1 | D | m | z | x.m | Tfn | Tfmax | C | Co | ||
| mm | mm | mm | mm | mm | mm | mm | KN | KN | kg | |||||||||||||||
| BTI.20.0414 | 414 | 486 | 326.5 | 56 | 44.5 | 44.5 | 28 | 460 | 24 | 13.5 | 375 | 24 | M12 | 24 | 3 | 335 | 5 | 67 | +0.75 | 16 | 46 | 209 | 1010 | 31 |
| BTI.20.0544 | 544 | 616 | 445.2 | 56 | 44.5 | 44.5 | 28 | 590 | 32 | 13.5 | 505 | 32 | M12 | 24 | 4 | 456 | 5 | 76 | +0.6 | 17 | 50 | 233 | 1350 | 42 |
| BTI.20.0644 | 644 | 716 | 547.2 | 56 | 44.5 | 44.5 | 28 | 693 | 36 | 13.5 | 605 | 36 | M12 | 24 | 4 | 558 | 6 | 93 | +0.6 | 21 | 56 | 248 | 1580 | 50 |
| BTI.20.0744 | 744 | 816 | 649.2 | 56 | 44.5 | 44.5 | 28 | 790 | 40 | 13.5 | 705 | 40 | M12 | 24 | 4 | 660 | 6 | 110 | +0.6 | 21 | 56 | 262 | 1840 | 58 |
| BTI.20.0844 | 844 | 916 | 737.6 | 56 | 44.5 | 44.5 | 28 | 890 | 40 | 13.5 | 805 | 40 | M12 | 24 | 4 | 752 | 8 | 94 | +0.8 | 25 | 72 | 276 | 2100 | 59 |
| BTI.20.0944 | 944 | 1016 | 841.6 | 56 | 44.5 | 44.5 | 28 | 990 | 44 | 13.5 | 905 | 44 | M12 | 24 | 4 | 856 | 8 | 107 | +0.8 | 25 | 72 | 286 | 2340 | 76 |
