Description
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| Its number | BTW 140 CM/SP |
| Category | Super-precision angular contact thrust ball bearings, double direction, |
| Overview | BTW 140 CM/SP Super-precision angular contact thrust ball bearings, double direction, - M: Machined brass cage, rolling element centred - SP: Dimensional tolerances to ISO class 5, geometrical tolerances to class 4 |
| Features and benefits | double direction angular contact thrust ball bearings are designed to locate spindle shafts axially in both directions. These bearings are intended for mounting in combination with cylindrical roller bearings in the NN 30 K or N 10 K series in the same housing bore This bearing combination simplifies machining of the housing bore. |
| It is composed of outer ring, inner ring, steel ball and cage, and can work stably at a higher speed. It should be noted during installation that although the bearing can bear two-way axial load, if there is a gap for the ball on one side, care should be taken not to let the main axial load pass through the side of the groove with the gap. | |
| Application | Low friction, high rotation accuracy, high limit speed, etc., suitable for precision and compound load fields, and are widely used in machine tool rotary tables, grinding heads and various test equipment |
| Dimensions | |
| d (mm) (Bore diameter) | 140 |
| D (mm) (Outer diameter) | 210 |
| B (mm) (Hight) | 84 |
| W(kg) (Weight) | 8.6 |
| Technical Data | |
| Basic dynamic load rating | 106 kN |
| Basic static load rating | 375 kN |
| Fatigue load limit | 13.2 kN |
| Attainable speed for grease lubrication | 3 200 r/min |
| Attainable speed for oil-air lubrication | 3 800 r/min |
| Contact angle | 60 ° |
| Preload | 940 N |
| Static axial stiffness | 1 089 N/µm |
| Reference grease quantity | 45.3 cm³ |
| RFQ | |
| 1. Who are we? | |
| Sun Rises Group Limited have rich experience in bearings operation since year 1986. Our own brand is SDVV and we also agent for many world-famous bearings. | |
| 2. How can we guarantee quality? | |
| Always a pre-production sample before mass production; | |
| Always final Inspection before shipment; | |
| We have sufficient inventory to achieve fast delivery. If you want to know more, please feel free to contact us so that we can get back to you quickly. | |
Extended Super-precision angular contact thrust ball bearings, double direction,
| Designation | Basic load ratings | Attainable speeds | |||||
| Principal dimensions | dynamic | static | Grease lubrication | Oil-air lubrication | |||
| d[mm] | D[mm] | H[mm] | C[kN] | C0[kN] | [r/min] | [r/min] | |
| BTW 35 CTN9/SP | 35 | 62 | 34 | 16.8 | 39 | 11 000 | 14 000 |
| BTW 40 CTN9/SP | 40 | 68 | 36 | 19.5 | 46.5 | 10 000 | 13 000 |
| BTW 45 CTN9/SP | 45 | 75 | 38 | 22.1 | 54 | 9 500 | 12 000 |
| BTW 50 CTN9/SP | 50 | 80 | 38 | 22.5 | 60 | 9 000 | 11 000 |
| BTW 55 CTN9/SP | 55 | 90 | 44 | 30.2 | 80 | 7 500 | 9 000 |
| BTM 60 ATN9/HCP4CDB | 60 | 95 | 33 | 21.6 | 43 | 12 700 | 15 200 |
| BTM 60 ATN9/P4CDB | 60 | 95 | 33 | 21.6 | 43 | 10 100 | 12 900 |
| BTM 60 BTN9/HCP4CDB | 60 | 95 | 33 | 25 | 50 | 11 100 | 13 300 |
| BTM 60 BTN9/P4CDB | 60 | 95 | 33 | 25 | 50 | 9 000 | 11 500 |
| BTW 60 CTN9/SP | 60 | 95 | 44 | 30.7 | 83 | 7 500 | 9 000 |
| BTM 65 ATN9/HCP4CDB | 65 | 100 | 33 | 22 | 47.5 | 11 900 | 14 200 |
| BTM 65 ATN9/P4CDB | 65 | 100 | 33 | 22 | 47.5 | 9 500 | 12 100 |
| BTM 65 BTN9/HCP4CDB | 65 | 100 | 33 | 26 | 54 | 10 400 | 12 400 |
| BTM 65 BTN9/P4CDB | 65 | 100 | 33 | 26 | 54 | 8 400 | 10 900 |
| BTW 65 CTN9/SP | 65 | 100 | 44 | 31.9 | 90 | 7 000 | 8 500 |
| BTM 70 ATN9/HCP4CDB | 70 | 110 | 36 | 27.5 | 58.5 | 10 900 | 13 000 |
| BTM 70 ATN9/P4CDB | 70 | 110 | 36 | 27.5 | 58.5 | 8 700 | 11 100 |
| BTM 70 BTN9/HCP4CDB | 70 | 110 | 36 | 32 | 67 | 9 500 | 11 300 |
| BTM 70 BTN9/P4CDB | 70 | 110 | 36 | 32 | 67 | 7 700 | 9 900 |
| BTW 70 CTN9/SP | 70 | 110 | 48 | 39 | 112 | 6 700 | 8 000 |
| BTM 75 ATN9/HCP4CDB | 75 | 115 | 36 | 27.5 | 61 | 10 300 | 12 300 |
| BTM 75 ATN9/P4CDB | 75 | 115 | 36 | 27.5 | 61 | 8 200 | 10 400 |
| BTM 75 BTN9/HCP4CDB | 75 | 115 | 36 | 32.5 | 69.5 | 9 000 | 10 700 |
| BTM 75 BTN9/P4CDB | 75 | 115 | 36 | 32.5 | 69.5 | 7 300 | 9 400 |
| BTW 75 CTN9/SP | 75 | 115 | 48 | 39.7 | 116 | 6 300 | 7 500 |
| BTM 80 ATN9/HCP4CDB | 80 | 125 | 40.5 | 33.5 | 73.5 | 9 600 | 11 500 |
| BTM 80 ATN9/P4CDB | 80 | 125 | 40.5 | 33.5 | 73.5 | 7 600 | 9 700 |
| BTM 80 BTN9/HCP4CDB | 80 | 125 | 40.5 | 39 | 85 | 8 400 | 10 000 |
| BTM 80 BTN9/P4CDB | 80 | 125 | 40.5 | 39 | 85 | 6 800 | 8 700 |
| BTW 80 CTN9/SP | 80 | 125 | 54 | 47.5 | 140 | 5 600 | 6 700 |
Please contact
Email: molly@sunrises-group.com
WhatsApp: +86 13520524683
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