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China Ball-Cage Universal Coupling for Heavy-Duty Petroleum Applications Manufacturers, Product
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China Ball-Cage Universal Coupling for Heavy-Duty Petroleum Applications Manufacturers, Product

China Ball-Cage Universal Coupling for Heavy-Duty Petroleum Applications Manufacturers, Product

MTPM spherical ball-cage universal coupling is widely used in heavy-duty drive systems in the petroleum industry, including drilling rigs, mud pumps, and rotary equipment. It is particularly suitable for shaft connections with large angular misalignment or limited radial space, as well as conditions requiring reliable torque transmission under both low speed heavy load and conventional or high-speed operation.

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Product Description

Product Specifications

Product name ball cage coupling, spherical roller gear coupling, ball cage gear coupling
Chinese Model MTBCC series
Temperature rating -40°C to 120°C
Material Mostly made of high-strength alloy steel 42CrMo (AISI 4140/4340)
Service life Expected to operate for over 20,000 hours (approx. 3-5 years) with proper alignment and lubrication.
Application Heavy-duty drive systems: drilling rigs, mud pumps, rotary tables, and transmission machinery.
Third party inspection Available via Bureau Veritas (BV), CCS, ABS, SJS etc.

Product Features

✓
Damping and vibration reduction with an automatic recirculating lubrication system for lower noise.
✓
0.5 to 1 times higher load capacity than conventional universal couplings of the same diameter.
✓
Excellent synchronization between driving and driven shafts using a single ball plunger structure.
✓
Large axial and radial displacement compensation without the need for external spline connections.
✓
Compact, lightweight structure designed for efficient mass production and reduced costs.
✓
Easy assembly/disassembly and maintenance, suitable for high-speed or large-angle drives.

Product Parameters

Model Nominal Torque Tn(N.m) Fatigue Torque Tf(N.m) Max Angular Misalignment Allowable Axial Movement (mm)
MTBCC225F24800900012°±25
MTBCC250F375001370010°±30
MTBCC285F440001600010°±30
MTBCC300F580002100010°±30
MTBCC315F800002900010°±35
MTBCC350F1090004000010°±35
MTBCC390F1500006650010°±38
MTBCC440F210000840008°+30 / -50
MTBCC490F3200001600008°±45
MTBCC550F3900001950008°+40 / -60

Frequently Asked Questions

What is the expected service life of the MTBCC series coupling?
When properly aligned and lubricated, the coupling is expected to operate for over 20,000 hours, which generally corresponds to 3 to 5 years of service in standard drilling applications.
What materials are used in the construction of these couplings?
The couplings are primarily manufactured from high-strength alloy steel 42CrMo (equivalent to AISI 4140/4340) to ensure durability in heavy-duty environments.
Can these couplings handle high-temperature environments?
Yes, the MTBCC series is rated for a temperature range of -40°C to 120°C, making it suitable for various extreme working conditions.
Do these couplings require external spline connections for axial movement?
No, one of the key features is that they allow for significant axial and radial displacement compensation without the need for external spline connections.
What kind of load capacity do they offer compared to standard couplings?
They offer 0.5 to 1 times higher load capacity compared to conventional universal couplings with the same rotation diameter and inclination angle.
Are third-party inspection reports available for these products?
Yes, inspection reports and witness services from Bureau Veritas (BV), CCS, ABS, SJS, and other major agencies are available.

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