Self Locking Bolster

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Product Details:

Surface Finish Polished
Hardness Rockwell
Features Easy To Operate
Material Steel
Textile Machine Type Textile Finishing Machine
Warranty 1 Year
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Self Locking Bolster Price And Quantity

Minimum Order Quantity 100 Piece

Self Locking Bolster Product Specifications

Material Steel
Warranty 1 Year
Surface Finish Polished
Textile Machine Type Textile Finishing Machine
Features Easy To Operate
Hardness Rockwell

Self Locking Bolster Trade Information

Payment Terms Cash in Advance (CID)
Supply Ability 5000 Piece Per Month
Delivery Time 7 - 10 Days
Main Domestic Market All India

Product Description

For Ring Spinning, Twisting & Compact Spinning Frames

Spindle bolsters (also called spindle boosters or bearing units) are precision-engineered components that securely mount spinning or twisting spindles into ring frame machines. They ensure:

High-speed, vibration-free rotation
Long spindle life
Stable yarn drafting and quality

HZ Series Insert with Bolster (Standard & Heavy-Duty)

These are standard mechanical bearing units with steel inserts and bolsters used in ring spinning and twisting machines for various yarn types. They support a wide RPM range and are available in multiple sizes.

Model	Code	Length (mm)	ID (mm)	OD (mm)	Thread (Mount)	Weight (kg)	Application
HZ 33-0019	8711	146.0	21.7	8.8	M25 1.5	0.313	Ring spinning light duty
HZ 35-0018	2991	163.5	21.7	8.8	M25 1.5	0.342	Ring spinning general purpose
HZ 55-0952	204	188.0	28.2	12.0	M32 1.5	0.734	Twisting & ring spinning
HZ 66-0014	227	229.0	32.5	14.0	M35 1.5	0.927	Twisting / worsted spinning
HZ 68-0017	830	229.0	32.5	14.0	M35 1.5	0.930	Same as HZ 66 alternate build
HZ 77-0952	381	273.0	37.8	16.0	M40 1.5	1.750	High-speed & heavy-duty twisting

Used in: Cotton mills, woolen spinning, synthetic yarns, worsted yarn mills

HF Series High-Speed Mechanical Boosters (For Compact & Auto-Doff Systems)

The HF Series is designed for ultra-high-speed spinning frames, especially those using compact technology, auto doffers, or direct-drive spindles.

Model	Max Speed (RPM)	Length (mm)	Thread (Mount)	Top OD (mm)	Bottom OD (mm)	Weight (kg)	Application
HF 100	Up to 25,000	229.0	M35 1.5	28.0	38.0	~0.95	Ultra-high-speed & compact frames
HF 1	Up to 22,000	188.0	M32 1.5	28.0	36.0	~0.73	High-speed ring frames (LMW, Rieter)
HF 21	Up to 20,000	163.5	M25 1.5	21.7	30.0	~0.34	Mid-speed twisting / standard ring
HF 21C	Up to 18,000	146.0	M25 1.5	21.7	28.0	~0.31	Compact spinning (lower speed)

All HF units are:

Dynamically balanced
Sealed and greased for life
Anti-vibration mounted
Built for low noise, smooth rotation, and high-speed performance

HZ vs HF Series Feature Comparison

Feature	HZ Series	HF Series
Application Type	General spinning & twisting	High-speed & compact spinning
Max RPM	Up to ~20,000	Up to 25,000 (HF 100)
Construction	Standard steel insert + bolster	One-piece precision-built unit
Balancing	Optional	Dynamically balanced
Lubrication	Manual or automatic (grease/oil)	Greased for life
Maintenance	Requires periodic attention	Maintenance-free

Recommended Use by Machine

Machine	Recommended Spindle Booster
LMW LF4200A (Auto Doffer)	HF 1 or HF 100
Rieter G37 / G38	HF 21 or HF 1
Zinser 72XL / 451	HF 21C or HZ 66 / HZ 68
Marzoli FT5E	HZ 66 or HF 21C
Toyoda / KKTM	HZ 33 / HZ 35