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Special Ball Bearings
Special Industrial Bearings FreeRun is a specialized manufacturer of Hybrid Ceramic Bearing. Full Complement ceramic bearings,Ceramic Balls.
Hybrid Ceramic Bearing:
Ceramic bearings offer a significant performance improvement from those made from traditional steel. Our ceramic bearings are manufactured from silicon nitride (Si3N4), an exceptionally hard non-metallic material rated for speeds to 2 million dN, offering a wide selection of benefits.
Hybrid Bearings have steel rings and ceramic balls. Si3N4 Ball is the most popular for the balls as it has only 40 percent of the density of bearing steel but is much harder giving greater wear resistance. Zirconia is heavier with 75 percent of the density of steel so is less suitable for hybrid bearings..
FULL CERAMIC BEARINGS
Full Ceramic Bearings are made entirely of ceramic material and are superior to common steel bearings in many ways. Ceramic is the perfect material for any application seeking to achieve higher RPM’s, reduce overall weight or for extremely harsh environments where high temperatures and corrosive substances are present. Applications such as cryopumps, medical devices, semiconductors, machine tools, turbine flow meters, food processing equipment, robotics and optics. Ceramic materials commonly used for bearings are Silicon Nitride (Si3N4), Zirconia Oxide (ZrO2), or Silicon Carbide (SiC.)
Ceramic Balls:
We are special in making Silicone Nitride Balls (Si3N4 Balls,Zicronia Balls (ZrO2 Balls),Sic Ceramic Balls , Aluminum Oxside Valve (AI203) ceramic balls.
Compared with steel, ceramic materials are noted for their better or particular characters, such as wear-resistance, corrosion resistance, high temperature resistance, electrical insulation (except SiC), non-magnetic, high strength, high rigidity, and low specific gravity. These properties qualify them for replacing steel to make bearings serve in conditions of higher speed, harsh environment and less lube, and decrease wear, noise, vibration and maintenance time of bearings, and eventually increase performance, reliability and life of bearings.
Main Specifications:
| Metric Series | |||
| Dimensions | ZZ(Metal Shield) | Dimensions | ZZ(Metal Shield) |
| 1.2x4x2.5mm | MR41XZZ/C | 7x13x4mm | MR137ZZ/C |
| 1.5x4x2mm | 681XZZ/C | 7x14x5mm | 687ZZ/C |
| 1.5x5x2.6mm | 691XZZ/C | 7x17x5mm | 697ZZ/C |
| 1.5x6x3mm | 601XZZ/C | 7X19X6 mm | 607ZZ/C |
| 2x5x2.3mm | 682ZZ/C | 7x22x7 mm | 627ZZ/C |
| 2x5x2.5mm | MR52ZZ/C | 7x26x9 mm | 637ZZ/C |
| 2X6X2.5 | MR62ZZ/C | 8x12x3.5mm | MR128ZZ/C |
| 2x6x3mm | 692ZZ/C | 8x14x4mm | MR148ZZ/C |
| 2x7x3mm | MR72ZZ/C | 8X16X5 mm | 688ZZ/C |
| 2x7x3.5mm | 602ZZ/C | 8X16X6 mm | 688ZZ/CW6 |
| 2.5x6x2.6mm | 682XZZ/C | 8x19x6mm | 698ZZ/C |
| 2.5x7x3.5mm | 692XZZ/C | 8x22x7mm | 608ZZ/C |
| 2.5x8x3mm | MR82XZZ/C | 8x11x11mm | 608ZZ/CW11 |
| 2.5x8x4mm | 602XZZ/C | 8x24x8mm | 628ZZ/C |
| 3x6x2.5mm | MR63ZZ/C | 8x28x9mm | 638ZZ/C |
| 3x7x3mm | 683ZZ/C | 9x14x4.5mm | 679ZZ/C |
| 3x8x3 mm | MR83ZZ/C | 9x17x5mm | 689ZZ/C |
| 3x8x4mm | 693ZZ/C | 9x17x6mm | 689ZZ/CW6 |
| 3x9x4mm | MR93ZZ/C | 9x20x6mm | 699ZZ/C |
| 3X9X5 mm | 603ZZ/C | 9x24x7mm | 609ZZ/C |
| 3X10X4mm | 623ZZ/C | 9x26x8mm | 629ZZ/C |
| 3X13X5mm | 633ZZ/C | 9x30x10mm | 639ZZ/C |
| 4x7x2.5mm | MR74ZZ/C | 10x15x4mm | 6700ZZ/C |
| 4x8x3mm | MR84ZZ/C | 10x16x4mm | MR1016ZZ/C |
| 4x9x4mm | 684ZZ/C | 10x16x5mm | MR1016ZZ/C/W5 |
| 4x10x4mm | MR104ZZ/C | 10x19x5mm | 6800ZZ/C |
| 4x11x4mm | 694ZZ/C | 10X19X7 | 63800ZZ/C |
| 4x12x4mm | 604ZZ/C | 10x22x6mm | 6900ZZ/C |
| 4X13X5 mm | 624ZZ/C | 10X26X8 mm | 6000ZZ/C |
| 4X16X5 mm | 634ZZ/C | 10X30X9 mm | 6200ZZ/C |
| 5x8x2.5mm | MR85ZZ/C | 10X35X11mm | 6300ZZ/C |
| 5x9x3mm | MR95ZZ/C | 12x18x4mm | 6701ZZ/C |
| 5x10x4mm | MR105ZZ/C | 12x21x5mm | 6801ZZ/C |
| 5x11x4mm | MR115ZZ/C | 12x21x7mm | 63801ZZ/C |
| 5X11X5mm | 685ZZ/C | 12x24x6mm | 6901ZZ/C |
| 5X12X4mm | MR125ZZ/C | 12x28x7mm | 16001ZZ/C |
| 5x13x4mm | 695ZZ/C | 12x28x8mm | 6001ZZ/C |
| 5X14X5 mm | 605ZZ/C | 12x32x10mm | 6201ZZ/C |
| 5X16X5 | 625ZZ/C | 12x24x6mm | 6301ZZ/C |
| 5X19X6 | 635ZZ/C | 13X19X4mm | MR1319ZZ/C |
| 6x10x3mm | MR106ZZ/C | 13X20X4mm | MR1320ZZ/C |
| 6x12x4mm | MR126ZZ/C | 15X21X4mm | 6702ZZ/C |
| 6x13x5mm | 686ZZ/C | 15X24X5mm | 6802ZZ/C |
| 6x15x5mm | 696ZZ/C | 15X28X7mm | 6902ZZ/C |
| 6x16x5 mm | 696AZZ/C | 15x32x8mm | 16002ZZ/C |
| 6X17X6 mm | 606ZZ/C | 15x32x9mm | 6002ZZ/C |
| 6X19X6 mm | 626ZZ/C | 15x35x11mm | 6202ZZ/C |
| 6X22X7 mm | 636ZZ/C | 15x42x13mm | 6302ZZ/C |
| 7x11x3mm | MR117ZZ/C | ||
| Inch Series | |||
| Dimensions | ZZ(Metal Shield) | Dimensions | ZZ(Metal Shield) |
| 5/64"X1/4"X9/64" | R1-4ZZ/C | 3/16"X5/8"X0.196" | R3AZZ/C |
| 3/32"X3/16"X3/32" | R133ZZ/C | 3/16"X11/16"X1/4" | 1601ZZ/C |
| 3/32"X5/16"X9/64" | R1-5ZZ/C | 1/4"X3/8"X1/8" | R168ZZ/C |
| 1/8"X1/4"X7/64" | R144ZZ/C | 1/4"X1/2"X3/16" | R188ZZ/C |
| 1/8"X5/16"X9/64" | R2-5ZZ/C | 1/4"X5/8"X0.196" | R4ZZ/C |
| 1/8"X3/8"X9/64" | R2-6ZZ/C | 1/4"X11/16"X1/4" | 1602ZZ/C |
| 1/8"X3/8"X5/32" | R2ZZ/C | 1/4"X3/4"X9/32" | R4AZZ/C |
| 1/8"X1/2"X0.1719" | R2AZZ/C | 5/16"X1/2"X5/32" | R1810ZZ/C |
| 5/32"X5/16"X1/8" | R155ZZ/C | 5/16"X5/8"X5/32" | R1810AZZ/C |
| 3/16"X5/16"X1/8" | R156ZZ/C | 3/8"X5/8"X5/32" | R1038ZZ/C |
| 3/16"X3/8"X1/8" | R166ZZ/C | 3/8"X7/8"X9/32" | R6ZZ/C |
| 3/16"X1/2"X0.196" | R3ZZ/C | 1/2"X3/4"X5/32" | R1212ZZ/C |
Stainless Steel, Flange, Open Type, Teflon Seal ceramic bearings will also for your choices.
Hybrid Ceramic Bearings Full Ceramic Bearings Ceramic Balls
Stainless Rings + Si3N4 Balls Zicronia Ceramic Bearings Zicronia Balls (ZR02 BALLS)
ZZ shield and Open Types Si3N4 Ceramic Bearings Silicone Nitride Balls(Si3N4)
Chrome Rings + Si3N4 Balls2R
2RS Seal Ceramic Ball Bearings SIC Ceramic Bearings SIC Ceramic ballls
Full Complement Ceramic balls Full Ceramic Bearing
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