• Model NO.: XSA, XSI, XSU
  • Warranty: 12 Months
  • Rolling Element: Roller
  • Quench & Temper Hardness: 229hb-269hb
  • Normalizing Hardness: 187hb-241hb
  • Type: Cross Roller
  • Transport Package: Wooden Case
  • Origin: China
  • Material: Steel 45#, 50mn, 42CrMo
  • Gear Options: Ungeared, External Gear and Internal Gear Type
  • Seals: NBR
  • Raceway Hardness After Quenching: 55HRC-62HRC
  • Model: as Requested
  • Trademark: DRE
  • Specification: as your request
  • HS Code: 848340900

 

Preload Cross Roller Bearings


Preload cross roller bearings are units comprising inner and outer rings with a closing plug and securing dowel, rolling elements, spacers, contact seals and lubrication nipples.
--gear teeth on the outer ring, inner ring or without gear teeth.
--bearing rings with through holes or threaded holes for fixing screws.

Preload cross roller bearings can support high radial loads, moderate axial loads and tilting moment loads, can support higher dynamic loads than four point contact bearings

Preload cross roller bearings are used where zero operating clearance or preload is required, used in the rotational resistance must be particularly uniform, used in where there are high requirement for accuracy and rigidity of the bearing arrangement.


High Precise Preload Cross Roller Bearings







Preload Cross Roller Bearings with External Gear Teeth
Designation Mass
 
≈kg		 Dimensions Fixing holes Gear teeth Tooth force Basic load ratings Internal clearance 
/preload
Da di2)

+IT7		 Di2)

+IT7		 da La na3) Li ni3) d0 m z Fz norm Fz max axial radial
dyn.
Ca		 stat.
C0a		 dyn.
Cr		 stat.
C0r
kN kN kN kN kN kN
XSA 14 0414 N 32 503.3 344 417 413-0.5 455 20 368 24 495 5 99 15.9 23.6 229 520 146 250 0.01 incl. 0.03
XSA 14 0544 N 44 640.3 474 547 543-0.5 585 28 498 32 630 6 105 21.3 31.5 270 680 170 330 0.01 incl. 0.03
XSA 14 0644 N 52 742.3 574 647 643-0.6 685 32 598 36 732 6 122 21.3 31.5 290 800 185 395 0.01 incl. 0.04
XSA 14 0744 N 59 838.1 674 747 743-0.6 785 36 698 40 828 6 138 21.3 31.5 315 930 200 455 0.01 incl. 0.04
XSA 14 0844 N 71 950.1 774 847 843-0.6 885 36 798 40 936 8 117 28.3 42 340 1050 215 510 0.01 incl. 0.04
XSA 14 0944 N 77 1046.1 874 947 943-0.7 985 40 898 44 1032 8 129 28.3 42 360 1170 227 580 0.01 incl. 0.05
XSA 14 1094 N 91 1198.1 1024 1097 1093-0.7 1135 44 10478 48 1184 8 148 28.3 42 390 1360 246 670 0.01 incl. 0.05

Preload Cross Roller Bearings with Internal Gear Teeth

Designation Mass
 
≈kg		 Dimensions Fixing holes Gear teeth Tooth force Basic load ratings Internal clearance 
/preload
Da2)

-IT7		 di Di da2)

-IT7		 La na3) Li ni3) d0 m z Fz norm Fz max axial radial
dyn.
Ca		 stat.
C0a		 dyn.
Cr		 stat.
C0r
kN kN kN kN kN kN
XSL 14 0414 N 31 484 325 415+0.5 411 460 24 375 24 335 5 67 17.7 26.2 229 520 146 250 0.01 incl. 0.03
XSL 14 0544 N 43 614 444 545+0.5 541 590 32 505 32 456 6 76 23.7 35 270 680 170 330 0.01 incl. 0.03
XSL 14 0644 N 50 714 546 645+0.6 641 690 36 605 36 558 6 93 23.7 35 290 800 185 395 0.01 incl. 0.04
XSL 14 0744 N 58 814 648 745+0.6 741 790 40 705 40 660 6 110 23.7 35 315 930 200 455 0.01 incl. 0.04
 XSL 14 0844 N 69 914 736 845+0.6 841 890 40 805 40 752 8 94 31.4 46.7 340 1050 215 510 0.01 incl. 0.04
 XSL 14 0944 N 76 1014 840 945+0.7 941 990 44 905 44 856 8 107 31.4 46.7 360 1170 227 580 0.01 incl. 0.05
 XSL 14 1094 N 91 1164 984 1095+0.7 1091 1140 48 1055 48 1000 8 125 31.4 46.7 390 1360 246 670 0.01 incl. 0.05


Preload Cross Roller Bearings without Gear Teeth
Designation Mass
 
≈kg		 Dimensions Fixing holes Basic load ratings Internal clearance 
/preload
Da2)

-IT7		 di2)

+IT7		 Di da La na3) Li ni3) axial radial
dyn.
Ca		 stat.
C0a		 dyn.
Cr		 stat.
C0r
kN kN kN kN
XSU 14 0414 N 28 484 344 415+0.5 413-0.5 460 24 368 24 229 520 146 250 0.01 incl. 0.03
XSU 14 0544 N 38 614 474 545+0.5 543-0.5 590 32 498 32 270 680 170 330 0.01 incl. 0.03
XSU 14 0644 N 44 714 574 645+0.6 643-0.6 690 36 598 36 290 800 185 395 0.01 incl. 0.04
XSU 14 0744 N 52 814 674 745+0.6 743-0.6 790 40 698 40 315 930 200 455 0.01 incl. 0.04
 XSU 14 0844 N 60 914 774 845+0.6 843-0.6 890 40 798 40 340 1050 215 510 0.01 incl. 0.04
 XSU 14 0944 N 67 1014 874 945+0.7 943-0.7 990 44 898 44 360 1170 227 580 0.01 incl. 0.05
 XSU 14 1094 N 77 1164 1024 1095+0.7 1093-0.7 1140 48 1048 48 390 1360 246 670 0.01 incl. 0.05

Slewing Bearing Definition

Slewing bearing is a large bearing with special configuration, which can endure biggest multiply load, such as axial&radial load, overturning moment,etc.



Slewing Ring Structure

Slewing ring is composed of outer ring (teeth or non-teeth),rolling element(steel ball, cylindrical roller, tapered roller), cage, inner ring(teeth or non-teeth) and seals (the one with sealed structure).

Slewing Bearing Function

Slewing bearing itself is featured in compact structure, convenient lead to slew, easy for installation&maintenance, which is widely used as slewing set in the fields of heavy machine, slewing platform in the steelworks, excavator grab, material taking&stacking set, material traveler, harbor machine, missile lauching cage,CT set, etc.

Materials for Slewing Bearing

1)Rings: Steel 45#,50Mn(carbon structural steel), 42CrMo (alloy structural steel). 50Mn and 42CrMo are usually used.

2)Rolling element: It is made of chrome steel GCr15 or GCr15SiMn.

3)Seal: It is usually made of NBR,iron,felt,or other thing which meet the capability.

Hardness: Normalizing hardness of the rings is 187HB-241HB, quench & temper hardness is 229HB-269HB, hardness of the raceway after quenching is 55HRC-62HRC.

Slewing Bearing Transportation 

Delivery:   Stock product in 7 days
                  Standard product in 30 days
                  Custom product in 40-60 days
Package: Three layers in wood cases.
Transportation types: By sea, By air, By currier

Normally we have structure for slewing bearings as below:

Single-row four point contact ball slewing bearings

Single Row Cross Roller Slewing Ring Bearings 

Double-row ball slewing bearingsAluminum steel Coil

Aluminum

WENZHOU ICL INDUSTRIAL CO., LTD. , https://www.cniclsteel.com

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