Four different sizes
Magnetically or mechanically coupled models
BK Series has <100 µrad repeatability
English and metric versions available
Kinematic bases allow you to mount, remove, and replace optical components with very high repeatability. Three polished steel balls in the bottom plate register with a hardened cone, groove, and flat in the top plate so the two plates relocate precisely every time. These bases are especially time-saving in setups where optical elements must frequently be interchanged, or when reference elements must occasionally be inserted in an optical path.
BK-Series bases utilize four high-strength magnets to securely couple the top and bottom plates together. The magnetically-coupled plates are easy to release by simply tilting the mounted component. The edges are chamfered to reduce the risk of pinching your fingers when coupling the top and bottom plates. BK-3A incorporates Newport\'s patented mounting method so—like magnetic bases—they can be positioned anywhere, and at any orientation, on a table surface. Additional top plates can be purchased for quickly substituting optical components.
The BKL-4 Kinematic Bases significantly reduce positioning errors with a novel lock-down mechanism located in the center of the base plate. Turning the thumb-wheel in the base plate rotates a threaded post, which tightens the tapped top plate to the base. Because the lock-down mechanism is located in the center of the three kinematic reference points, locking pressure is applied gradually and evenly for repeatable positioning time after time.
The top plate is removed with a few turns of the large, self-lubricating wheel conveniently located in the front of the base. Placing the top plate over the base and turning the thumb-wheel in the opposite direction securely and smoothly locks the top plate in position.
1 in. (25 mm) clearance slots for mounting bolts allow the base to be positioned over any point on mounting surfaces with standard tapped hole patterns. The top plate includes a standard pattern of tapped mounting holes, plus handy clearance slots for bolting components to the top plate from below.
| Model | Description | Availability | Price | Qty. | |
|---|---|---|---|---|---|
| BK-1A | Kinematic Base, Magnetic, 1 inch Square | In Stock | ¥609.45 | ADD |
| BK-1A-B | Bottom Plate, For (M-)BK-1A Kinematic Base | In Stock | ¥380.72 | ADD |
| BK-1A-T | Top Plate, For BK-1A Kinematic Base | In Stock | ¥304.50 | ADD |
| BK-2A | Kinematic Base, Magnetic, 2 inch x 2.45 inch | 1 Week | ¥685.67 | ADD |
| BK-2A-B | Bottom Plate, For (M-)BK-2A Kinematic Base | Call | ¥456.97 | ADD |
| BK-2A-T | Top Plate, For BK-2A Kinematic Base | In Stock | ¥380.72 | ADD |
| BK-3A | Kinematic Base, Magnetic, 3 inch Square | In Stock | ¥1,219.34 | ADD |
| BK-3A-B | Bottom Plate, For (M-)BK-3A Kinematic Base | In Stock | ¥914.38 | ADD |
| BK-3A-T | Top Plate, For BK-3A Kinematic Base | In Stock | ¥761.92 | ADD |
| BKL-4 | Kinematic Base, Locking, 3.50 inch x 4 inch | In Stock | ¥1,753.00 | ADD |
| BKL-4-T | Top Plate, For BKL-4 Locking Kinematic Base | In Stock | ¥609.45 | ADD |
| Model | Description | Availability | Price | Qty. | |
|---|---|---|---|---|---|
| BK-1A-B | Bottom Plate, For (M-)BK-1A Kinematic Base | In Stock | ¥380.72 | ADD |
| BK-2A-B | Bottom Plate, For (M-)BK-2A Kinematic Base | Call | ¥456.97 | ADD |
| BK-3A-B | Bottom Plate, For (M-)BK-3A Kinematic Base | In Stock | ¥914.38 | ADD |
| M-BK-1A | Kinematic Base, Magnetic, 25.4 mm Square, Metric | In Stock | ¥609.45 | ADD |
| M-BK-1A-T | Top Plate, For M-BKL-1A, Kinematic Base, Metric | Call | ¥304.50 | ADD |
| M-BK-2A | Kinematic Base, Magnetic, 50.8 x 62.23 mm, Metric | In Stock | ¥685.67 | ADD |
| M-BK-2A-T | Top Plate, For M-BKL-2A, Kinematic Base, Metric | Call | ¥380.72 | ADD |
| M-BK-3A | Kinematic Base, Magnetic, 76.2 mm Square, Metric | In Stock | ¥1,219.34 | ADD |
| M-BK-3A-T | Top Plate, For M-BK-3A, Kinematic Base, Metric | Call | ¥761.92 | ADD |
| M-BKL-4 | Kinematic Base, Locking, 88.9 x 101.6 mm, Metric | In Stock | ¥1,753.00 | ADD |
| M-BKL-4-T | Top Plate, For M-BKL-4, Kinematic Base, Metric | In Stock | ¥609.45 | ADD |
Four high-strength magnets couple the plates together ( BK-3A ).
BKL-4 Locking Kinematic Base
Bolt down anywhere, at any orientation, on Newport tables or breadboards—even between holes ( BK-3A).
