harmonic drive reducer gear reducer zero backlash high torsional stiffness xru17-80-shf crossed roller bearing

Zero Backlash SHF harmonic gearbox

Quick Details

Type: Slewing Bearing
Bore Size: 1 - 157 mm
Outside Diameter: 1 - 40 mm
Model Number: XRU17-80-SHF
Feature: Cross Roller
Gear Options: Nongeared
Seals Type: Seal
Place of Origin: Jiangsu, China (Mainland)
Material: GCR15 Bearing steel
Types of Lubrication: grease
Precision: P5 P4 P2
Keyword: Harmonic Drive Gear Reducer
Groove type: linear
Hardness: 58-64HRC
Guarantee: 12month
Spacer: nylon
Applications: Harmonic Drive,Robot arm


Product Description

Harmonic gear bearings Cross cylindrical roller structure, divided according to their use case split outer ring, the inner ring and the outer and inner rings integral whole two categories. Rolling element is a cylindrical roller, 90 ° to each other vertically aligned in a V-raceway. This configuration enables a single bearing can withstand the load axial load, radial load and overturning moment, etc. in all directions, has high bearing stiffness and rotation accuracy complex carrying capacity; these bearings are compact, comes with bearing mounting holes for easy installation directly to the customer, suitable for a variety of different types of harmonic reducer.

PRS series bearings designed for this robot manipulator with R & D and harmonic reducer cross roller bearings, and precision cross roller bearing the same internal structure, have high rigidity, high precision turning, colleagues and can withstand the joint in all directions load. Harmonic gear during operation, these bearings have a crucial role, bearing directly determine the accuracy of gear teeth in the wrong resistance movement, and therefore PRS harmonic gear bearings ensure accuracy of the overall state of the harmonic gear It played a crucial role.

SHF (SHG) model (overall outer, inner overall) outer and inner rings are integral structure, almost no effect on the performance of the installation, it is possible to obtain stable rotation accuracy and torque; suitable for SHF (SHG) series of all kinds reducer.


Q1:What's your quality ?
A1:High quality. ISO9001:2008 certificate to ensure quality.
Q2: Can you privide free samples?
A2:Sample is free (except large bearings),Postage should be paid by buyer. But postage can be refund after
order is confirmed.
Q3: What is the Warranty for the bearings?
A3: For the bearings,we have 1 years warranty. If any quality problems on our side occured in this period ,we will take on the shipping cost and replacement.
Q4:Is there cheap shipping cost to import to our country?
A4: For small order,express will be best.And for bulk order,sea ship way is best but take much time.
For urgent orders,we suggest via air to airport plus our ship partner send to your door.
Q5:Can we get support if we have our own market position?
A5: Please inform us your detailed mind on your market demand,we will discuss and propose helpful suggestion for you,to find the best solution for you.