what's short rollers for robot thin wall bearings, thin-walled cross roller rings? where's customized steel rollers for linear bearings,RV harmonic reducer bearings, manufacturers? how to custom thin wall cross roller balls bearings?
custom small shafts, precision pins, super short rollers
we have special machines and production processes, we are professional in manufacturing ultra-short ultra-small shafts and pins. We usually use raw material such as GCR15 , SUJ2 , AISI52001, 100Cr6, SUS440C, SUS303/304, SUS420J2 and so on. These shafts and pins are widely used in automobile, motorcycle, garden tools, electronic products, medical devices, micro-motor, communication products and some other use. Welcome to customize shafts or pins with drawings.
we have over 20 years of manufacturing experience of precision rolelrs. we had most stock, delivery time: send to europe, USA, or canada only 3-5 work days
we have special machines and production processes, we are professional in manufacturing ultra-short ultra-small shafts and pins. We usually use raw material such as GCR15 , SUJ2 , AISI52001, 100Cr6, SUS440C, SUS303/304, SUS420J2 and so on. These shafts and pins are widely used in automobile, motorcycle, garden tools, electronic products, medical devices, micro-motor, communication products and some other use. welcome to customize shafts or pins with drawings.
cylindrical rollers are remarkable for their high mechanical strength and long lasting functional life. cylindrical rollers had multiple uses in a variety of industries including automotive, truck: linear lead rails, ultra-thin bearings, needle bearings, one way clutches, one-way bearings, needle bearings ,subminiature motor and so on.
main uses: 1: small shafts 2: short shafts 3: small pins 4: mini pins, 5: flat end pins 6: pins for electric toothbrush, 7: pins for medical devices 8: pins for electronic products
the ground ends needle rollers are mainly used as bearing rolling elements to transmit torque and reduce friction. they can also serve as precision shafts or as precision locating pins
technical parameters of cylindrical rollers
| diameter tolerance | +0/-0.005, +0/-0.003, +0/-0.002, grouping for 0.001mm or 0.0005mm | ||||||||||
| length tolerance | +/-0.015, +/-0.01, +0/-0.015, +/-0.005,+0/-0.005 | ||||||||||
| radius | R0.03-R0.3 | ||||||||||
| parallelism | 0.01, 0.005 | ||||||||||
| perpendicularity | 0.01, 0.005 | ||||||||||
| circularity | 0.001 | ||||||||||
| cylindricity | 0.001 | ||||||||||
| roughness | Ra0.1 | ||||||||||
| precision cylindrical rollers for bearings, roller bearings parts, cylindrical rolling elements | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
sizes of cylindrical rollers elements
| sizes | Dw | Lw | rsmin | rsmax | sizes | Dw | Lw | rsmin | rsmax |
|---|---|---|---|---|---|---|---|---|---|
| 3x3 | 3 | 3 | 0.2 | 0.4 | 3x5 | 3 | 5 | 0.2 | 0.4 |
| 3.5x5 | 3.5 | 5 | 0.2 | 0.4 | 4x4 | 4 | 4 | 0.2 | 0.4 |
| 4x6 | 4 | 6 | 0.2 | 0.4 | 4x8 | 4 | 8 | 0.2 | 0.4 |
| 4.5x4.5 | 4.5 | 4.5 | 0.2 | 0.6 | 4.5x6 | 4.5 | 6 | 0.2 | 0.6 |
| 5x5 | 5 | 5 | 0.2 | 0.6 | 5x8 | 5 | 8 | 0.2 | 0.6 |
| 5x10 | 5 | 10 | 0.2 | 0.6 | 5.5x5.5 | 5.5 | 5.5 | 0.2 | 0.6 |
| 5.5x8 | 5.5 | 8 | 0.2 | 0.6 | 6x6 | 6 | 6 | 0.2 | 0.6 |
| 6x8 | 6 | 8 | 0.2 | 0.6 | 6x10 | 6 | 10 | 0.2 | 0.6 |
| 6x12 | 6 | 12 | 0.2 | 0.6 | 6.5x6.5 | 6.5 | 6.5 | 0.2 | 0.6 |
| 6.5x9 | 6.5 | 9 | 0.2 | 0.6 | 7x7 | 7 | 7 | 0.2 | 0.6 |
| 7x10 | 7 | 10 | 0.2 | 0.6 | 7x14 | 7 | 14 | 0.2 | 0.6 |
| 7.5x7.5 | 7.5 | 7.5 | 0.2 | 0.6 | 7.5x9 | 7.5 | 9 | 0.2 | 0.6 |
| 7.5x11 | 7.5 | 11 | 0.2 | 0.6 | 8x8 | 8 | 8 | 0.2 | 0.6 |
| 8x10 | 8 | 10 | 0.2 | 0.6 | 8x12 | 8 | 12 | 0.2 | 0.6 |
| 9x9 | 9 | 9 | 0.3 | 0.7 | 9x10 | 9 | 10 | 0.3 | 0.7 |
| 9x14 | 9 | 14 | 0.3 | 0.7 | 10x10 | 10 | 10 | 0.3 | 0.7 |
| 10x11 | 10 | 11 | 0.3 | 0.7 | 10x14 | 10 | 14 | 0.3 | 0.7 |
| 11x11 | 11 | 11 | 0.3 | 0.7 | 11x12 | 11 | 12 | 0.3 | 0.7 |
| 11x15 | 11 | 15 | 0.3 | 0.7 | 12x12 | 12 | 12 | 0.3 | 0.7 |
| 12x14 | 12 | 14 | 0.3 | 0.7 | 12x18 | 12 | 18 | 0.3 | 0.7 |
| 13x13 | 13 | 13 | 0.4 | 0.8 | 13x20 | 13 | 20 | 0.4 | 0.8 |
| 14x14 | 14 | 14 | 0.4 | 0.8 | 14x20 | 14 | 20 | 0.4 | 0.8 |
| 15x15 | 15 | 15 | 0.4 | 0.8 | 15x16 | 15 | 16 | 0.4 | 0.8 |
| 15x22 | 15 | 22 | 0.4 | 0.8 | 16x16 | 16 | 16 | 0.4 | 0.8 |
| 16x17 | 16 | 17 | 0.4 | 0.8 | 16x24 | 16 | 24 | 0.4 | 0.8 |
| 17x17 | 17 | 17 | 0.4 | 1.0 | 17x24 | 17 | 24 | 0.4 | 1.0 |
| 18x18 | 18 | 18 | 0.4 | 1.0 | 18x19 | 18 | 19 | 0.4 | 1.0 |
| 18x26 | 18 | 26 | 0.4 | 1.0 | 19x19 | 19 | 19 | 0.4 | 1.0 |
| 19x20 | 19 | 20 | 0.4 | 1.0 | 19x28 | 19 | 28 | 0.4 | 1.0 |
| 20x20 | 20 | 20 | 0.4 | 1.0 | 20x30 | 20 | 30 | 0.4 | 1.0 |
| 21x21 | 21 | 21 | 0.5 | 1.1 | 21x30 | 21 | 30 | 0.5 | 1.1 |
| 22x22 | 22 | 22 | 0.5 | 1.1 | 22x24 | 22 | 24 | 0.5 | 1.1 |
| 22x34 | 22 | 34 | 0.5 | 1.1 | 23x23 | 23 | 23 | 0.5 | 1.1 |
| 24x24 | 24 | 24 | 0.5 | 1.1 | 24x26 | 24 | 26 | 0.5 | 1.1 |
| 24x36 | 24 | 36 | 0.5 | 1.1 | 25x25 | 25 | 25 | 0.5 | 1.1 |
| 25x36 | 25 | 36 | 0.5 | 1.1 | 26x26 | 22 | 26 | 0.5 | 1.1 |
| 26x28 | 22 | 28 | 0.5 | 1.1 | 26x40 | 22 | 10 | 0.5 | 1.1 |
| 28x28 | 28 | 28 | 0.6 | 1.4 | 28x44 | 28 | 44 | 0.6 | 1.4 |
| 30x30 | 30 | 30 | 0.6 | 1.4 | 30x48 | 30 | 48 | 0.6 | 1.4 |
| 32x32 | 32 | 32 | 0.6 | 1.4 | 32x52 | 32 | 52 | 0.6 | 1.4 |
| 34x34 | 34 | 34 | 0.6 | 1.4 | 34x55 | 34 | 55 | 0.6 | 1.4 |
| 36x36 | 36 | 36 | 0.7 | 1.7 | 36x58 | 36 | 58 | 0.7 | 1.7 |
| 38x38 | 38 | 38 | 0.7 | 1.7 | 38x62 | 38 | 62 | 0.7 | 1.7 |
| 40x40 | 40 | 40 | 0.7 | 1.7 | 40x65 | 40 | 65 | 0.7 | 1.7 |
| 42x42 | 42 | 42 | 0.9 | 2.1 | 45x45 | 45 | 45 | 0.9 | 2.1 |
| precision cylindrical rollers for bearings, roller bearings parts, cylindrical rolling elements | |||||||||