BTR series spindle bearings

The BTR series is a high-speed thrust angular contact ball spindle bearing with a contact angle of 40 °. It is a non separable back-to-back pairing and has higher rigidity than the BAR series (30 °). It is suitable for high rigidity, bi-directional axial load, and high-speed low heat precision spindle scenarios. It can be interchanged with the 2344 series and is often used in combination with cylindrical roller bearings.

Model Basic Dimensions Basic rated dynamic load Weight Type
Inner diameter Outer diameter Thickness Dynamic load Static load
[mm] [mm] [mm] (kN) (kN) （kg）
30BTR10ETDBLP4 30 55 24 18.1 30.5 0.1175 BTR series spindle bearings
35BTR10ETDBLP4 35 62 25.5 18.9 34.5 0.156 BTR series spindle bearings
40BTR10ETDBLP4 40 68 27 19.6 37.7 0.1955 BTR series spindle bearings
45BTR10ETDBLP4 45 75 28.5 21.8 42.7 0.268 BTR series spindle bearings
50BTR10ETDBLP4 50 80 28.5 17.4 31.5 0.272 BTR series spindle bearings
50BTR10HTDBLP4 50 80 28.5 17.4 30 0.257 BTR series spindle bearings
55BTR10ETDBLP4 55 90 33 21.6 40 0.39 BTR series spindle bearings
55BTR10HTDBLP4 55 90 33 21.6 38 0.369 BTR series spindle bearings
60BTR10ETDBLP4 60 95 33 22.4 43.5 0.42 BTR series spindle bearings
60BTR10HTDBLP4 60 95 33 22.4 41.5 0.397 BTR series spindle bearings
65BTR10ETDBLP4 65 100 33 23.1 47 0.45 BTR series spindle bearings
65BTR10HTDBLP4 65 100 33 23.1 45 0.425 BTR series spindle bearings
70BTR10ETDBLP4 70 110 36 32 63 0.601 BTR series spindle bearings
70BTR10HTDBLP4 70 110 36 32 60 0.561 BTR series spindle bearings
75BTR10ETDBLP4 75 115 36 32.5 65.5 0.634 BTR series spindle bearings
75BTR10HTDBLP4 75 115 36 32.5 63 0.592 BTR series spindle bearings
80BTR10ETDBLP4 80 125 40.5 38 78 0.83 BTR series spindle bearings
80BTR10HTDBLP4 80 125 40.5 38 74.5 0.776 BTR series spindle bearings
85BTR10ETDBLP4 85 130 40.5 38.5 81.5 0.983 BTR series spindle bearings
85BTR10HTDBLP4 85 130 40.5 38.5 78 0.926 BTR series spindle bearings