More details of High Speed Ceramic Angular Contact Ball BearingItem No. | Boundary Dimensions(mm) | Basic load ratings(KN) | Weight | limit speed |
(min-1) |
d | D | B | Cr | Cor | lubricating grease | oil lubrication |
Dynamic | Static |
71900C HQ1/P4 | 10 | 22 | 6 | 2.08 | 1.06 | 0.008 | 90000 | 150000 |
71901C HQ1/P4 | 12 | 24 | 6 | 2.32 | 1.29 | 0.01 | 80000 | 130000 |
71902C HQ1/P4 | 15 | 28 | 7 | 3.5 | 2 | 0.01 | 67000 | 100000 |
71903C HQ1/P4 | 17 | 30 | 7 | 3.7 | 2.2 | 0.01 | 60000 | 90000 |
71904C HQ1/P4 | 20 | 37 | 9 | 5 | 3.2 | 0.03 | 50000 | 75000 |
71905C HQ1/P4 | 25 | 42 | 9 | 5.6 | 4 | 0.04 | 43000 | 63000 |
71906C HQ1/P4 | 30 | 47 | 9 | 6 | 4.7 | 0.04 | 36000 | 53000 |
71907C HQ1/P4 | 35 | 55 | 10 | 8.2 | 6.6 | 0.06 | 32000 | 48000 |
71908C HQ1/P4 | 40 | 62 | 12 | 12.2 | 9.7 | 0.09 | 28000 | 43000 |
71909C HQ1/P4 | 45 | 68 | 12 | 12.9 | 10.8 | 0.11 | 24000 | 38000 |
71910C HQ1/P4 | 50 | 72 | 12 | 13.2 | 11.6 | 0.11 | 22000 | 36000 |
71911C HQ1/P4 | 55 | 80 | 13 | 16 | 14.3 | 0.15 | 20000 | 34000 |
71912C HQ1/P4 | 60 | 85 | 13 | 16.6 | 16 | 0.16 | 19000 | 32000 |
Packaging & Shipping1.industrial packing+industrial cartons+pallets 2.single brand box+brand cartons+pallets3.follow customer's requests A.Plastic Tubes or Single Boxes ( Usually 10pcs in one plastic tube for steel bearings); B.Cartons ( No more than 30kg for one carton ); C. Pallet ( Usually more than 400kg totally will use pallet ) D. Delivery time :7-35 days ( by sea or by air )Generally,We will choose the most suitable packing method for products. If you have any special requirements for packing, pleasecontact us in advance.High-speed precision ceramic bearings with an inner diameter of 10-60mm can be divided into three precision grades: P4, P4A and P2. The limit revolution can reach 80000 RPM. The rotating accuracy and service life of bearings are comparable to the world's top brand physical bearings.Si3N4 Silicon Nitride Ceramic Ball: Small starting torque, long service life, high rigidity, high operating accuracy, insensitive to temperature, good self-lubrication, good insulation, good corrosion resistance, good ceramic material, itself has extremely high acid and alkali resistance, strong salt spray resistance, with special alloy steel processing bearing has perfect corrosion resistance and high temperature resistance.Cage using nylon (TYN), phenol resin (TR)PEEK and other engineering plastic material products, self-lubrication performance is good, small friction coefficient, low bearing heat when high-speed rotation, widely used in high-speed machine tool spindle bearing.The size of 70 series ceramic bearing
contains all sizes of products from 7001C HQ1/P4(inner diameter:12mm outer diameter:28mm
) to 7018C HQ1/P4(inner diameter:90mm outer diameter:140mm
)