The circular knitting industry relies heavily on stable yarn feeding and synchronized rotary transmission to guarantee consistent fabric density, uniform yarn tension and flawless finished textiles. Circular knitting machines, whether single-sided, double-sided or seamless knitting models, operate continuously at high rotating speeds within humid workshops filled with floating lint and fine yarn dust. Traditional ordinary transmission belts often struggle to adapt to such harsh long-cycle working conditions: open-joint belts are prone to cracking during repeated bending, low-strength belts elongate rapidly to cause speed inconsistency, and inferior belt materials generate excessive dust that contaminates yarn raw materials. Tailored exclusively for yarn feeding and main spindle transmission of all mainstream circular knitting equipment, the 10TT5 Circular Knitting Machine Belt features a 10mm standard bandwidth and 5mm T-type tooth pitch, serving as the core consumable accessory for modern textile knitting workshops. We provide complete specifications of PU Timing Belt for Power Transmission, durable Industrial Grade PU Synchronous Belt and tensile-enhancedHigh Strength PU Synchronous Drive Belt to cover all transmission positions of circular knitting machines, meeting bulk procurement and replacement demands for global textile manufacturers.
As a professional seamless toothed belt customized for knitting machinery, the 10TT5 Circular Knitting Machine Belt adopts one-piece seamless extrusion molding technology without any connecting joints, thoroughly eliminating the common failure risk of joint fracture inherent to spliced belts. The belt body is made of imported wear-resistant polyurethane raw materials with optimized viscosity and hardness, featuring excellent lint resistance, oil resistance and anti-aging performance to adapt to high-humidity textile workshop environments. Internally reinforced with high-performance Kevlar fiber or high-tensile steel wire tension cords, this belt effectively restricts linear elongation even under long-term high-speed cyclic operation. The standard 10TT5 model belongs to our core PU Timing Belt for Power Transmission series, which is specially calibrated for low-jitter power transmission of yarn feeding systems. Its precise T-tooth profile achieves zero-slip meshing with dedicated knitting machine pulleys, stabilizing the rotating speed of yarn rollers and avoiding uneven yarn feeding that leads to defective fabrics such as skewed lines and uneven weave density.
We have upgraded the base formula and internal structure to launch the industrial iteration version of Industrial Grade PU Synchronous Belt based on the standard 10TT5 Circular Knitting Machine Belt. Compared with ordinary civilian-grade synchronous belts, this Industrial Grade PU Synchronous Belt enhances the compression resistance of the tooth root and the bending fatigue resistance of the belt body. After repeated bending fatigue tests up to millions of cycles, the tooth surface remains intact without cracking or tooth peeling. In addition, the surface undergoes fine polishing treatment to reduce friction coefficient during operation, lowering running noise and preventing fine PU powder from falling off to pollute raw yarn and grey fabrics. This upgraded model is perfectly suitable for large-scale knitting factories with 24-hour uninterrupted production plans, solving the pain point of frequent accessory replacement caused by overloaded operation of traditional belts.
For heavy-duty large-diameter circular knitting machines and high-torque main spindle transmission scenarios, our flagship High Strength PU Synchronous Drive Belt provides targeted high-load solutions. The reinforced High Strength PU Synchronous Drive Belt adjusts the density of internal tension cords and thickens the tooth rubber layer on the premise of retaining the original 10TT5 size parameters. It greatly improves instantaneous load-bearing capacity and impact resistance, which can cope with instantaneous torque fluctuations during equipment startup and shutdown. Different from generic textile belts on the market, all our 10TT5-series products including the PU Timing Belt for Power Transmission, Industrial Grade PU Synchronous Belt and High Strength PU Synchronous Drive Belt support customized length processing ranging from 4m to 20m, fully matching small mini circular knitting machines and large industrial knitting equipment of various brands.
Benefiting from stable transmission performance and long service life, our 10TT5 Circular Knitting Machine Belt serial products have been widely recognized in the warp knitting and weft knitting sectors, accumulating practical and valuable industry application cases. In the grey fabric mass production field, a large-scale textile factory in Southeast Asia specializes in the production of knitted sportswear fabrics. The factory once used low-cost open-ended joint belts for the yarn feeding system of double-sided circular knitting machines. These belts were easily affected by workshop humidity, resulting in localized expansion and joint breakage within one month, and inconsistent transmission speed caused a defective fabric rate of nearly 2%. After replacing all yarn feeding accessories with our standard PU Timing Belt for Power Transmission, the seamless integrated structure completely solved the joint breakage issue. The fabric defective rate related to transmission accessories dropped below 0.1%, and the service life of the belt was extended to more than four months, cutting the factory’s spare parts procurement cost by 28% annually.
In the high-end seamless underwear knitting segment with stricter fabric quality requirements, a Turkey-based seamless apparel manufacturer completed the overall accessory upgrade of its imported circular knitting units. The main spindle drive position of high-precision seamless knitting equipment required belts with ultra-low elongation and anti-dust properties to prevent tiny debris from contaminating high-grade yarn. The enterprise adopted our upgraded Industrial Grade PU Synchronous Belt for the yarn feeding area and equipped the main drive shaft with the heavy-duty High Strength PU Synchronous Drive Belt. After four months of continuous high-speed operation, the belts maintained stable tension and zero elongation deviation. The equipment maintenance frequency was reduced by 70%, and the finished seamless underwear achieved uniform elasticity and exquisite weaving texture, helping the enterprise improve product competitiveness in the high-end apparel market.