robots dedicated cross roller ring harmonic drive precision bearing thk

harmonic drive precision bearing

Quick Details

Structure: Other Structure, cross roller bearing
Type: Roller
Bore Size: 20 - 1250 mm
Outside Diameter: 36 - 1500 mm
Model Number: RB series
Precision Rating: P6,P5,P4,P2,USP
Seals Type: U,UU
Number of Row: Double Row

Structure & features

With the precision Cross-Roller bearing, cylindrical rollers are arranged with each roller perpendicular to the ad-jacent roller, in a 90 V groove, separated from each other by a spacer retainer. This design allows just one bearing to receive loads in all directions including radial, axial and moment loads.
Since the Cross-Roller Ring achieves high rigidity despite the minimum possible dimensions of the inner and outer rings, it is optimal for applications such as joints and swiveling units of industrial robots, swiveling tables of machining centers, rotary units of manipulators, precision rotary tables,medical equipment, measuring instruments and IC manufacturing machines.

1.High rotation accuracy
The spacer retainer fitting among cross-arrayed rollers prevents rollers from skewing and the rota- tional torque from increasing due to friction between rollers. Unlike conventional types using steel sheet retainers, the Cross-Roller Ring does not cause unilateral contact of roller or seize. Thus, even under a preload, the Cross-Roller Ring provides stable rotation.
Since the inner and outer rings are designed to be separable, the preload can be adjusted, and this feature enables accurate rotation

2.Easy handing
3.skewing Prevention
4.Increased rigidity
5.Large load capacity


Other products

 Deep groove ball bearing:6000 series, 6200 series, 6300 series, 6400 series, 6900 series, 1600series, 16000 series.
Double row: 4200A, 4300A

Also we can provide high temperature deep groove ball bearing such as S1, S2, S3.

Angular contact ball bearing:Single row angular contact ball bearing: 7000 series, 7200 series, 7300 series.
Double row angular contact ball bearing: 300 series, 3200 series, 3300 series.
Self aligning ball bearing:1200series, 1300series, 2200series, 2300series
Cylindrical roller bearing:Single row: N, NF, NH, NJ, NU, NFP, NUP, NUB series
Double row: NN, NNF, NNU series.
Four row: FC, FCD series
Full complement : SL series.
Spherical roller bearing:20000 series, 21000series, 22000 series, 23000 series, 24000 series.
Brass cage: CC, CA, CAK.
Steel cage: EK
Taper roller bearing:Single Row: 30000 series, 31000series, 32000 series, 33000 series.
Double Row: D, CD.
Inch taper Roller Bearing: 68149/10, 69349/10, 68548/10, 67048/10 etc.
Needle roller bearing:HK, NA, NK, RNA, NUTR, K, BK series. N
LB, LBE, LMU, LMUE series.
Thrust ball bearing:51100 series, 51200 series, 51300 series, 51400 series, 52200 series, 52300 series, 53200 series, 53300 series.
Pillow block ball bearing:UC, UCP, UCF, UCFA, UCFC, UCFL, UCFS, UCPA, UCPH, UCC, UCT series.
Rod end bearing:Rod ends: SI, SA, SSI, SSA, PHS, POS, SIZP, SAZP, SIZJ), SAZJ series.
Radial spherical plain bearings: GE, GEG, GEZ, GEGZ, GEBK, GEBJ, GEWK series.
Rod ends for hydraulic components: GIHR, GIHR-K, GIHN-K, GIHO-K, GK, GF series.
Ball joint rod ends: SQD, SQZ, SQ series.
Linear guide /linear guidewayHG,    QH,    RG,   QR,    EG,    QE,    WE,   QW,    MG,

MAS,   MSB,     MSR,    MSC,   MSE,   SMR,



Q: Can I get samples first? Is it free or extra?
A:Yes,we can offer samples for free charge but do not pay freight cost.

Q:What the MOQ of your company?
A:MOQ is 1 pcs

Q:Can you offer door to door service?
A:Yes,by express(FedEx,DHL,TNT,UPS,EMS)

Q:Can you accept Trade Assurance order?
A:Yes,we accept Trade Assurance order.

Q:What are payment terms your company accept?
A:T/T,Western Union,Paypal,Credit Card