Self-lubricated Brass Alloy Bushings SPF | Precision Bearing Sleeves, Lock Nuts & OEM Parts Supplier | Chin Sing Taiwan
Brass alloy with embedded solid lubricant bushing is to open cavities of appropriate size and orderly arrangement on the metal friction surface of the bushing matrix. It was embedded a molded solid lubricant with unique self-lubricating properties in the cavities (the solid lubricant area is generally 25% - 35% of the friction area) and made of self-lubricating bushings. Browse Chin Sing Precision's high-quality bearing sleeves, adapter sleeves, bushings, wear plates & more. Expert Taiwanese manufacturer providing custom & standard solutions for demanding applications.
Self-lubricated Brass Alloy Bushings SPF
SPF
Brass alloy with embedded solid lubricant bushing is to open cavities of appropriate size and orderly arrangement on the metal friction surface of the bushing matrix. It was embedded a molded solid lubricant with unique self-lubricating properties in the cavities (the solid lubricant area is generally 25% - 35% of the friction area) and made of self-lubricating bushings.
It has been used in metallurgy of continuous casting machine, rolling equipment, mining machinery, shipbuilding, gas turbines and other high temperature, high load, low speed heavy load and other occasions.
Material
High Tensile Brass Alloy + Graphite Solid Lubricant Embedded
Features List
- May work without any oil for a long period.
- Extremely high load capacity, good anti-wear and lower friction.
- Particularly appropriate for low speed and high load.
- Suitable for reciprocating, oscillating or intermittent motion where oil film is hard to be formed.
- Good chemical resistant and anti-corrosion characteristics.
- Can be used in wide range of temperature from -40°C - +300°C.
- Low maintenance frequency.
Technical Data
| Materia | CuZn24AL6 |
| Hardness | HB230-270 |
| Coefficient of Friction (µ) | < 0.16 |
| Max. Temp. | 300°C |
| Max. Dynamic Load | 100 N/mm² |
| Max. Speed (Dry) | 0.4 m/s |
| Max. Speed (Lubrication) | 5 m/s |
| PV Limit | 3.8 N/mm² *m/s |
Chemical Compositions
| Chemical Compositions % | ||||||||
|---|---|---|---|---|---|---|---|---|
| Cu | Zn | Al | Fe | Mn | Si | Ni | Sn | Pb |
| 64.24 | 25.10 | 5.17 | 2.67 | 2.82 | < 0.1 | < 0.5 | < 0.2 | < 0.2 |
Drawing
SPF DRAWING
SPF
Self-lubricated Bushings #500SP (SPF).
For rotation, swing and reciprocating motion.
Item No: SPF- XX XX
ID Length
| Shaft Diameter | Dimension (mm) | Length Tolerance | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | OD | Flange | 10 | 15 | 20 | 25 | 30 | |||||
| Γd | TOL | ΓD | TOL | ΓF | Thickness | TOL | SPF | SPF | SPF | SPF | SPF | |
| 10 | 10 | +0.04 | 14 | +0.034 | 22 | 2 | 0 | -1010 | -1015 | -1020 | γ | γ |
| +0.025 | +0.023 | -0.1 | γ | |||||||||
| 12 | 12 | +0.05 | 18 | +0.034 | 25 | 3 | " | -1210 | -1215 | -1220 | -1225 | -1230 |
| +0.032 | +0.023 | γ | ||||||||||
| 13 | 13 | +0.05 | 19 | +0.041 | 26 | 3 | " | γ | -1315 | -1320 | γ | γ |
| +0.032 | +0.028 | γ | γ | |||||||||
| 14 | 14 | +0.05 | 20 | +0.041 | 27 | 3 | " | γ | -1415 | -1420 | -1425 | γ |
| +0.032 | +0.028 | γ | ||||||||||
| 15 | 15 | +0.05 | 21 | +0.041 | 28 | 3 | " | -1510 | -1515 | -1520 | -1525 | -1530 |
| +0.032 | +0.028 | γ | ||||||||||
| 16 | 16 | +0.05 | 22 | +0.041 | 29 | 3 | " | γ | -1615 | -1620 | -1625 | -1630 |
| +0.032 | +0.028 | γ | ||||||||||
| 20 | 20 | +0.061 | 30 | +0.041 | 40 | 5 | " | γ | -2015 | -2020 | -2025 | -2030 |
| +0.04 | +0.028 | γ | ||||||||||
| 25 | 25 | +0.061 | 35 | +0.05 | 45 | 5 | " | γ | -2515 | -2520 | -2525 | -2530 |
| +0.04 | +0.034 | γ | ||||||||||
| 30 | 30 | +0.061 | 40 | +0.05 | 50 | 5 | " | γ | γ | -3020 | -3025 | -3030 |
| +0.04 | +0.034 | γ | ||||||||||
| 31.5 | 31.5 | +0.075 | 40 | +0.05 | 50 | 5 | " | γ | γ | -3120 | γ | -3130 |
| +0.05 | +0.034 | γ | γ | |||||||||
| 35 | 35 | +0.075 | 45 | +0.05 | 60 | 5 | " | γ | γ | -3520 | -3525 | -3530 |
| +0.05 | +0.034 | γ | ||||||||||
| 40 | 40 | +0.075 | 50 | +0.05 | 65 | 5 | " | γ | γ | -4020 | -4025 | -4030 |
| +0.05 | +0.034 | γ | ||||||||||
| 45 | 45 | +0.075 | 55 | +0.073 | 70 | 5 | " | γ | γ | γ | γ | -4530 |
| +0.05 | +0.041 | γ | γ | γ | ||||||||
| 50 | 50 | +0.075 | 60 | +0.073 | 75 | 5 | " | γ | γ | γ | γ | -5030 |
| +0.05 | +0.041 | γ | γ | γ | ||||||||
| 55 | 55 | +0.09 | 65 | +0.073 | 80 | 5 | " | γ | γ | γ | γ | γ |
| +0.06 | +0.041 | γ | γ | γ | ||||||||
| 60 | 60 | +0.09 | 75 | +0.062 | 90 | 7.5 | " | γ | γ | γ | γ | γ |
| +0.06 | +0.043 | γ | γ | |||||||||
| 63 | 63 | +0.09 | 75 | +0.062 | 85 | 7.5 | " | γ | γ | γ | γ | γ |
| +0.06 | +0.043 | γ | γ | |||||||||
| 70 | 70 | +0.09 | 85 | +0.083 | 105 | 7.5 | " | γ | γ | γ | γ | γ |
| +0.06 | +0.051 | γ | γ | |||||||||
| 75 | 75 | +0.09 | 90 | +0.083 | 110 | 7.5 | " | γ | γ | γ | γ | γ |
| +0.06 | +0.051 | γ | γ | |||||||||
| 80 | 80 | +0.09 | 100 | +0.083 | 120 | 10 | " | γ | γ | γ | γ | γ |
| +0.06 | +0.051 | γ | γ | |||||||||
| 90 | 90 | +0.107 | 110 | +0.076 | 130 | 10 | " | γ | γ | γ | γ | γ |
| +0.072 | +0.054 | γ | γ | |||||||||
| 100 | 100 | +0.107 | 120 | +0.076 | 150 | 10 | " | γ | γ | γ | γ | γ |
| +0.072 | +0.054 | γ | γ | |||||||||
| 120 | 120 | +0.107 | 140 | +0.088 | 170 | 10 | " | γ | γ | γ | γ | γ |
| +0.072 | +0.054 | γ | γ | |||||||||
| 120 | 120 | +0.107 | 140 | +0.088 | 170 | 10 | " | γ | γ | γ | γ | γ |
| +0.072 | +0.063 | γ | γ | |||||||||
| Shaft Diameter | Length Tolerance | ID | OD | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 35 | 40 | 50 | 60 | 67.5 | 80 | 100 | |||
| SPF | SPF | SPF | SPF | SPF | SPF | SPF | |||
| 10 | γ | γ | γ | γ | γ | γ | γ | 10 | 14 |
| γ | |||||||||
| 12 | γ | γ | γ | γ | γ | γ | γ | 12 | 18 |
| γ | |||||||||
| 13 | γ | γ | γ | γ | γ | γ | γ | 13 | 19 |
| γ | |||||||||
| 14 | γ | γ | γ | γ | γ | γ | γ | 14 | 20 |
| γ | |||||||||
| 15 | γ | γ | γ | γ | γ | γ | γ | 15 | 21 |
| γ | |||||||||
| 16 | -1635 | -1640 | γ | γ | γ | γ | γ | 16 | 22 |
| γ | |||||||||
| 20 | γ | -2040 | γ | γ | γ | γ | γ | 20 | 30 |
| γ | |||||||||
| 25 | -2535 | -2540 | -2550 | γ | γ | γ | γ | 25 | 35 |
| γ | |||||||||
| 30 | -3035 | -3040 | -3050 | γ | γ | γ | γ | 30 | 40 |
| γ | |||||||||
| 31.5 | -3135 | -3140 | γ | γ | γ | γ | Β | 31.5 | 40 |
| γ | γ | ||||||||
| 35 | -3535 | -3540 | -3550 | γ | γ | γ | γ | 35 | 45 |
| γ | |||||||||
| 40 | -4035 | -4040 | -4050 | γ | γ | γ | γ | 40 | 50 |
| γ | |||||||||
| 45 | -4535 | -4540 | -4550 | -4560 | γ | γ | γ | 45 | 55 |
| γ | |||||||||
| 50 | -5035 | -5040 | -5050 | -5060 | γ | γ | γ | 50 | 60 |
| γ | |||||||||
| 55 | γ | -5540 | γ | -5560 | γ | γ | γ | 55 | 65 |
| γ | γ | γ | |||||||
| 60 | γ | -6040 | -6050 | -6060 | γ | -6080 | γ | 60 | 75 |
| γ | γ | ||||||||
| 63 | γ | γ | γ | γ | -6367 | γ | γ | 63 | 75 |
| γ | γ | γ | γ | ||||||
| 70 | γ | γ | -7050 | γ | γ | -7080 | γ | 70 | 85 |
| γ | γ | γ | γ | ||||||
| 75 | γ | γ | γ | -7560 | γ | γ | γ | 75 | 90 |
| γ | γ | γ | γ | ||||||
| 80 | γ | γ | γ | -8060 | γ | -8080 | -80100 | 80 | 100 |
| γ | γ | γ | γ | ||||||
| 90 | γ | γ | γ | -9060 | γ | -9080 | γ | 90 | 110 |
| γ | γ | γ | γ | ||||||
| 100 | γ | γ | γ | γ | γ | -10080 | -100100 | 100 | 120 |
| γ | γ | γ | γ | γ | |||||
| 120 | γ | γ | γ | γ | γ | -12080 | -120100 | 120 | 140 |
| γ | γ | γ | γ | γ | |||||
Self-lubricated Brass Alloy Bushings #500SP (SPF) can be used in rotation, swing and reciprocating motion.
Attention: There is no solid lubricant on the flange.
Please avoid using in water.
The inner diameter of 31.5mm is in the middle of the hydraulic cylinder trunnion bushing.
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Self-lubricated Brass Alloy Bushings SPF | Global Supplier of Bearing Sleeves, Locking Systems & Custom Machined Parts
Chin Sing offers a full range of Self-lubricated Brass Alloy Bushings SPF, adapter sleeves, withdrawal sleeves, and hydraulic sleeves engineered for reliable bearing mounting and dismounting on cylindrical shafts. Our components are precision-machined to meet international standards like ISO 2982-1 and DIN 5415, ensuring secure fitment, extended service life, and easy maintenance in high-load applications.
These shaft sleeves are widely used in steel mills, mining conveyors, wind turbines, and other industrial machinery where downtime must be minimized. Our hydraulic options further simplify installation and removal, reducing labor time and preventing damage to bearings or shafts. Available in both metric and inch series, we cater to global OEMs and MRO buyers.
Whether you're replacing existing parts or sourcing for new builds, Chin Sing delivers high-quality solutions backed by Taiwan-based manufacturing expertise, OEM/ODM customization, and ISO-certified quality assurance. Our bearing mounting components are trusted worldwide for performance, safety, and efficiency.