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MONTON double direction thrust angular contact ball bearings consist of two single row thrust angular contact ball bearings with back-to-back arrangement and contact angle of 60°. This configuration plus the multi-ball design allows the bearing to withstand high axial loads in both directions and provide high system rigidity. The two bearings are separated. When the shaft rings are pressed together, a preload within a preset range can be obtained, so it is often used in the bidirectional positioning of machine tool spindles.

MONTON double direction thrust angular contact ball bearing combined with NN30K series or N10K series cylindrical roller bearings and installed in the same bearing seat hole. This bearing combination simplifies the processing of the bearing seat hole. The nominal inner diameter and outer diameter of MONTON double direction thrust angular contact ball bearings are the same as those of the corresponding cylindrical roller bearings. The outer diameter tolerance of the seat ring is combined with the bearing seat bore diameter and form and position tolerances recommended for super precision cylindrical roller bearings to give the bearing seat hole an appropriate radial clearance. If the outer ring is not axially pressed in the bearing seat, the clearance is sufficient to prevent the thrust bearing from bearing radial loads. The 234 series double direction thrust angular contact ball bearings are 60° contact angle structures, consisting of a seat ring with a lubricating oil groove and oil hole, two shaft rings, a spacer and two cage assemblies with many steel balls; the width of the spacer can ensure that the bearings are preloaded. Double direction angular contact ball bearings can withstand bidirectional axial loads and do not withstand radial loads.

They have high precision, good rigidity, good lubrication, low temperature rise, high speed and easy loading and unloading. This type of bearing is widely used in the spindles of grinders, lathes, boring machines, milling machines, drilling machines, etc., and is particularly suitable for use in precision machine tool spindles when combined with double-row cylindrical roller bearings.

Our company has professional sales and technical engineers who are responsible for providing users with technical consultation, technical services and product technical training on precision bearing data and installation and use. Perfect pre-sales, in-sales and after-sales services constitute a guarantee system for high-quality services, providing users with reliable quality bearing products, and creating excellent user experience and rich benefits for every customer.

If you have any questions about products and services, please contact the company's service department directly.


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SelectDownloadInquiryDesignationMain dimensionsBasic load ratingsFatigue limit loadLimiting speedsDimensionsContact angleMounting dimensionsPreload force FVLift-off force KaEAxial rigidity caMass
dDBDyn. Cr(KN)Stat. Cor( kN)Cur NnG grease minnG oil minr min.r1 min.BNSNSBa °da h12Da H12ra max.ra1 max.L NM NH NL NM NH NL N/µmM N/µmH N/µmm = kg
Download PDF HCB71920-EDLR-T-P4S 100 140 20 57 40.5 2800 12000 18000 1.1 1.1 4 12 2.2 25 107 133 0.6 0.6 204 850 1876 584 2489 5611 187 311 421 0.64
Download PDF HCB71920-CDLR-T-P4S 100 140 20 60 43 2950 13000 20000 1.1 1.1 4 12 2.2 15 107 133 0.6 0.6 160 572 1201 473 1789 3950 80.4 135 189 0.64
Download PDF HC71920-EDLR-T-P4S 100 140 20 27 21.2 1470 15000 24000 1.1 1.1 4 12 2.2 25 107 133 0.6 0.6 109 328 656 313 951 1927 162 239 307 0.8
Download PDF XC71920-EDLR-T-P4S 100 140 20 41 21.2 1470 17000 26000 1.1 1.1 4 12 2.2 25 107 133 0.6 0.6 109 328 656 313 951 1927 162 239 307 0.8
Download PDF HCB7020-EDLR-T-P4S 100 150 24 79 52 3550 11000 17000 1.5 1.5 5.5 14.5 2.2 25 110 141 1.5 0.6 333 1266 2723 957 3715 8170 212 343 459 1.01
Download PDF HCB7020-CDLR-T-P4S 100 150 24 83 55 3750 13000 19000 1.5 1.5 5.5 14.5 2.2 15 110 141 1.5 0.6 241 823 1703 717 2587 5636 89.1 148 206 1.01
Download PDF HC7020-EDLR-T-P4S 100 150 24 34.5 26 1760 15000 22000 1.5 1.5 5.5 14.5 2.2 25 110 141 1.5 0.6 144 431 863 412 1252 2539 171 253 326 1.27
Download PDF XC7020-EDLR-T-P4S 100 150 24 53 26 1760 16000 24000 1.5 1.5 5.5 14.5 2.2 25 110 141 1.5 0.6 144 431 863 412 1252 2539 171 253 326 1.27
Download PDF HCB71921-EDLR-T-P4S 105 145 20 57 41 2800 11000 17000 1.1 1.1 4 12 2.2 25 112 138 0.6 0.6 204 850 1876 584 2489 5611 187 311 421 0.68
Download PDF HCB71921-CDLR-T-P4S 105 145 20 60 43 2950 13000 19000 1.1 1.1 4 12 2.2 15 112 138 0.6 0.6 157 564 1185 466 1763 3895 80 134 188 0.68
Download PDF HC71921-EDLR-T-P4S 105 145 20 27.5 22.4 1530 15000 22000 1.1 1.1 4 12 2.2 25 112 138 0.6 0.6 113 338 676 323 980 1987 170 250 321 0.82
Download PDF XC71921-EDLR-T-P4S 105 145 20 42 22.4 1530 16000 24000 1.1 1.1 4 12 2.2 25 112 138 0.6 0.6 113 338 676 323 980 1987 170 250 321 0.82
Download PDF HCB7021-EDLR-T-P4S 105 160 26 80 55 3650 11000 16000 2 2 5.5 15.5 2.2 25 116 150 2 1 336 1285 2768 966 3768 8297 219 355 476 1.36
Download PDF HCB7021-CDLR-T-P4S 105 160 26 85 58 3850 12000 18000 2 2 5.5 15.5 2.2 15 116 150 2 1 244 836 1732 725 2623 5718 92.1 153 213 1.36
Download PDF HC7021-EDLR-T-P4S 105 160 26 45 33 2180 14000 22000 2 2 5.5 15.5 2.2 25 116 150 2 1 184 552 1104 527 1602 3250 188 277 357 1.56
Download PDF XC7021-EDLR-T-P4S 105 160 26 69 33 2180 15000 24000 2 2 5.5 15.5 2.2 25 116 150 2 1 184 552 1104 527 1602 3250 188 277 357 1.56
Download PDF HCB71922-EDLR-T-P4S 110 150 20 58 42.5 2850 11000 17000 1.1 1.1 4 12 2.2 25 117 143 0.6 0.6 208 871 1923 596 2547 5747 193 322 435 0.69
Download PDF HCB71922-CDLR-T-P4S 110 150 20 61 45 3000 12000 19000 1.1 1.1 4 12 2.2 15 117 143 0.6 0.6 158 570 1199 468 1777 3931 82.1 138 193 0.69
Download PDF HC71922-EDLR-T-P4S 110 150 20 32 26 1720 14000 22000 1.1 1.1 4 12 2.2 25 117 143 0.6 0.6 131 393 787 375 1141 2312 178 262 337 0.82
Download PDF XC71922-EDLR-T-P4S 110 150 20 49 26 1720 16000 24000 1.1 1.1 4 12 2.2 25 117 143 0.6 0.6 131 393 787 375 1141 2312 178 262 337 0.82
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