Compare Model Drawings, CAD & Specs Availability Price
Kinematic Base, Magnetic, 1 inch Square
$93
In Stock
In Stock
Kinematic Base, Magnetic, 25.4 mm Square, Metric
$93
In Stock
In Stock
Top Plate, For BK-1A Kinematic Base
$46
4 Weeks
4 Weeks
Top Plate, For M-BK-1A, Kinematic Base, Metric
$46
In Stock
In Stock
Bottom Plate, For (M-)BK-1A Kinematic Base
$60
In Stock
In Stock
Kinematic Base, Magnetic, 2 inch x 2.45 inch
$104
3 Weeks
3 Weeks
Kinematic Base, Magnetic, 50.5 x 62.23 mm, Metric
$104
In Stock
In Stock
Top Plate, For BK-2A Kinematic Base
$60
In Stock
In Stock
Top Plate, For M-BKL-2A, Kinematic Base, Metric
$60
In Stock
In Stock
Bottom Plate, For (M-)BK-2A Kinematic Base
$68
In Stock
In Stock
Kinematic Base, Magnetic, 3 inch Square
$185
In Stock
In Stock
Kinematic Base, Magnetic, 76.2 mm Square, Metric
$185
In Stock
In Stock
Top Plate, For BK-3A Kinematic Base
$118
In Stock
In Stock
Top Plate, For M-BK-3A, Kinematic Base, Metric
$118
In Stock
In Stock
Bottom Plate, For (M-)BK-3A Kinematic Base
$141
In Stock
In Stock
Kinematic Base, Locking, 3.50 inch x 4 inch
$263
In Stock
In Stock
Kinematic Base, Locking, 88.9 x 101.6 mm, Metric
$263
In Stock
In Stock
Top Plate, For BKL-4 Locking Kinematic Base
$93
In Stock
In Stock
Top Plate, For M-BKL-4, Kinematic Base, Metric
$93
In Stock
In Stock

Features

Convenient Magnetic Coupling

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.

Four high-strength magnets in the BK-3A couple the plates together.

Bolt Down Anywhere at Any Orientation

Our patented mounting method (U.S. Patent 4,690,507) allows you to bolt down anywhere, at any orientation, on Newport tables or breadboards. Even if this requires mounting between holes.

Reliable Mechanical Coupling

The BKL-4 Kinematic Bases are designed with a threaded 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.

BKL-4 Locking Kinematic Base

Exceptional 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.