metal bushing

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Bimetal Bush Supplier

The bimetal bushing consists of a steel strip with a machined alloy lining, allowing for oil grooves, holes, or indentations. It is ideal for high-load, low-speed oscillation and rotational movements. Please refer to our catalog for sizes. This bushing features a bronze-lined steel backing designed for oil-lubricated applications and incorporates a double butterfly joint for improved performance.

Bimetal Bushes Material Design.

Our metal and bimetal bushes are engineered for demanding conditions with minimal maintenance, improving reliability and durability while lowering operating costs. They are corrosion-resistant and suitable for outdoor, water, marine, and offshore environments. Available in various sizes and types, such as CuPb10Sn10, CuPb6Sn6Zn3, CuPb24Sn4, CuPb30, AlSn20Cu, and CuSn8Ni, options include thin-walled, thick-walled, flanged, cylindrical, and self-lubricating varieties. Bi-metal bush replacements come in a range of sizes, types, and materials, including monometallic and bimetallic choices. Bimetal bearings — flange bushings are designed for heavy loads and shock conditions, featuring anti-corrosion properties and easy installation for emergency use.

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Bimetal Bush-JF800

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Bimetal Bush-JF720

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Bimetal Bush-JF700

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Bimetal Bush-JF20

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Bimetal Bush-JF930

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Bimetal Bush-Graphite

Bimetal Bushings – Premium Factory Products

Premium Bimetal Bearing Service

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Bimetal Bush Manufacturer Price

Professional Service

Bimetal Bushes: Fast Delivery and Reliable Quality! We leverage advanced technology and a strong brand to offer high-quality products at competitive prices. We welcome both domestic and international merchants for business discussions. Our bimetal bushes are designed with cutting-edge technology to ensure exceptional performance and durability in demanding conditions. With years of expertise, we strive to exceed the expectations of our partners and customers.

Our team is committed to continuous innovation, enhancing the efficiency and reliability of our products. Each item undergoes rigorous testing and quality checks before delivery, reflecting our unwavering commitment to quality.

We pride ourselves on fast delivery, ensuring your orders arrive on time to meet urgent project deadlines. By prioritizing customer satisfaction, we build strong, long-term relationships with our partners.

Discover the benefits of collaborating with us and let’s work together to advance your business in a dynamic market. Contact us today to learn how our premium bimetal bushes can enhance your operations and provide a competitive edge.

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JF Series Bimetallic Bushings – Engineering Size Catalog & Selection Guide

Optimized for Professional Selection (JF‑800 / JF‑720 / JF‑700 / JF‑20 / JF‑930)

1. Product Nomenclature & Ordering Code

Standard Format: [Material Grade] [Bore Size (mm)] [Length (mm)]

 
 
Code Element Example Meaning
Material Grade JF‑800 Select from 5 alloy grades (see Section 2)
Bore Size 25 Nominal inner diameter Φd = 25 mm
Length 30 Nominal length L = 30 mm

Ordering Example: JF‑720 2530 → Material JF‑720, Bore 25 mm, Length 30 mm.
(All standard cylindrical bushings share the same dimensional envelope; simply specify the required material grade.)

2. Material Selection Matrix (Choose First!)

Evaluate your operating conditions against the five alloy grades below. Always select the material before choosing the size.

 
 
Grade Alloy Composition Hardness (HB) Max. Static Load (N/mm²) Max. Sliding Speed (Oil) (m/s) Max. PV (Oil) Friction Coef. (Oil) Key Strength Best Application
JF‑800 CuPb10Sn10 70 ~ 100 150 5.0 20 0.06~0.14 Highest fatigue & shock resistance Medium load, high speed; connecting rods, shock-loaded bushings
JF‑720 CuPb24Sn4 45 ~ 70 130 10.0 10 0.06~0.16 High load capacity, good slidability Medium load/speed; main bearings (IC engines)
JF‑700 CuPb30 40 ~ 60 120 10.0 8 0.08~0.16 Excellent shock & corrosion resistance Heavy-duty main bearings, connecting rod bushings
JF‑20 AlSn20Cu 30 ~ 45 100 25.0 6 0.08~0.17 Anti-seizure, soft overlay High speed, low/medium load; high-speed spindles
JF‑930 CuPb6.5P0.1 69 ~ 90 150 5.0 – 0.06~0.16 Moderate fatigue, good slidability High speed, low load; compressors, refrigeration

Selection Priority:

  1. High shock / heavy load → JF‑800

  2. Highest speed (>10 m/s) → JF‑20

  3. Heavy static load + moderate speed → JF‑700 or JF‑720

  4. Compressor / refrigeration duty → JF‑930

3. Standard Cylindrical Bushing – Dimensional Data Sheet

All dimensions in mm.
Length Tolerance: L –0.4 (negative only).
Housing Fit: H7 tolerance (values shown in table).
Oil Hole (Φh): Standard hole diameter provided where indicated; “—” denotes plain surface (no hole).

3.1 Small Series (ΦD ≤ 60 mm)

 
 
Designation ΦD (OD) Φd (ID) Shaft Tolerance (d) Housing H7 (D) Oil Hole Φh f1 f2 Available Lengths L –0.4
JF 12 12 10 10 (-0.013 / -0.028) 12 (+0.018 / 0) Φ4 0.6 0.3 15, 20
JF 14 14 12 12 (-0.016 / -0.034) 14 (+0.018 / 0) — — — 15, 20
JF 16 16 14 14 (-0.016 / -0.034) 16 (+0.018 / 0) — — — 15, 20
JF 17 17 15 15 (-0.016 / -0.034) 17 (+0.018 / 0) — — — 15, 20, 25
JF 18 18 16 16 (-0.016 / -0.034) 18 (+0.018 / 0) — — — 15, 20, 25
JF 19 19 17 17 (-0.016 / -0.034) 19 (+0.021 / 0) — — — 15, 20, 25
JF 20 20 18 18 (-0.016 / -0.034) 20 (+0.021 / 0) — — — 15, 20, 25
JF 23 23 20 20 (-0.020 / -0.041) 23 (+0.021 / 0) — 0.8 0.4 15, 20, 25
JF 25 25 22 22 (-0.020 / -0.041) 25 (+0.021 / 0) Φ6 — — 20, 25, 30
JF 27 27 24 24 (-0.020 / -0.041) 27 (+0.021 / 0) — — — 20, 25, 30
JF 28 28 25 25 (-0.020 / -0.041) 28 (+0.021 / 0) — — — 20, 25, 30
JF 30 30 26 26 (-0.020 / -0.041) 30 (+0.021 / 0) — — — 20, 25, 30
JF 32 32 28 28 (-0.020 / -0.041) 32 (+0.025 / 0) — 1.2 0.6 20, 25, 30
JF 34 34 30 30 (-0.020 / -0.041) 34 (+0.025 / 0) — — — 20, 25, 30
JF 36 36 32 32 (-0.025 / -0.050) 36 (+0.025 / 0) — — — 20, 25, 30, 40
JF 39 39 35 35 (-0.025 / -0.050) 39 (+0.025 / 0) — — — 20, 25, 30, 40
JF 42 42 38 38 (-0.025 / -0.050) 42 (+0.025 / 0) Φ8 — — 20, 25, 30, 40
JF 44 44 40 40 (-0.025 / -0.050) 44 (+0.025 / 0) — — — 25, 30, 40
JF 50 50 45 45 (-0.025 / -0.050) 50 (+0.025 / 0) — 1.6 0.8 25, 30, 40
JF 55 55 50 50 (-0.025 / -0.050) 55 (+0.025 / 0) — — — 30, 40, 50
JF 60 60 55 55 (-0.030 / -0.060) 60 (+0.030 / 0) — — — 30, 40, 50

3.2 Large Series (ΦD ≥ 65 mm)

 
 
Designation ΦD (OD) Φd (ID) Shaft Tolerance (d) Housing H7 (D) Oil Hole Φh1 f1 f2 Available Lengths L –0.4
JF 65 65 60 60 (-0.030 / -0.060) 65 (+0.030 / 0) Φ8 1.6 0.8 40, 50, 60
JF 70 70 65 65 (-0.030 / -0.060) 70 (+0.030 / 0) — — — 40, 50, 60
JF 80 80 75 75 (-0.030 / -0.060) 80 (+0.030 / 0) Φ9.5 — — 40, 50, 60
JF 85 85 80 80 (-0.030 / -0.060) 85 (+0.035 / 0) — — — 40, 50, 60
JF 90 90 85 85 (-0.036 / -0.071) 90 (+0.035 / 0) — — — 50, 60, 70
JF 95 95 90 90 (-0.036 / -0.071) 95 (+0.035 / 0) — — — 50, 60, 70
JF 100 100 95 95 (-0.036 / -0.071) 100 (+0.035 / 0) — — — 50, 60, 70
JF 105 105 100 100 (-0.036 / -0.071) 105 (+0.035 / 0) — — — 50, 60, 70
JF 110 110 105 105 (-0.036 / -0.071) 110 (+0.035 / 0) — — — 50, 60, 70
JF 115 115 110 110 (-0.036 / -0.071) 115 (+0.035 / 0) — — — 50, 60, 70
JF 120 120 115 115 (-0.036 / -0.071) 120 (+0.035 / 0) — — — 60, 70, 80
JF 125 125 120 120 (-0.036 / -0.071) 125 (+0.040 / 0) — — — 60, 70, 80
JF 130 130 125 125 (-0.043 / -0.083) 130 (+0.040 / 0) — — — 60, 70, 80
JF 135 135 130 130 (-0.043 / -0.083) 135 (+0.040 / 0) — — — 60, 70, 80
JF 145 145 135 135 (-0.043 / -0.083) 145 (+0.040 / 0) — — — 80, 100
JF 150 150 145 145 (-0.043 / -0.083) 150 (+0.040 / 0) — — — 80, 100
JF 155 155 150 150 (-0.043 / -0.083) 155 (+0.040 / 0) — — — 80, 100

4. Flanged Bushing Dimensions (Bimetallic)

For applications requiring axial location or thrust support. Specify custom dimensions or select from standard configurations below.

Key parameters:

  • D₁ = Flange outer diameter

  • B = Flange thickness

  • D₃ = Bushing outer diameter (housing bore)

  • D₂ = Bushing inner diameter (shaft bore)

  • A = Overall length (including flange)

  • C = Flange chamfer / relief

 
 
D₁ B D₃ D₂ A C D₁ B D₃ D₂ A C
42 3.5 37 30 30 3.5 87 3.5 67 60 65 3.5
43 2.0 34 30 28 2.0 87 4.0 68 60 60 4.0
44 3.5 39 32 35 3.5 87.5 1.95 69.12 65.22 64.5 2.0
47 3.5 39 32 50 3.5 88 3.5 67 60 60 3.5
48 2.0 39 35 37 2.0 88 3.5 72 65 65 3.5
52 3.0 41 35 35 3.0 92 3.5 77 70 67 3.5
55 3.5 42 35 35 3.5 93 3.5 75 68 60 3.5
55 3.5 45 38 35 3.5 94 3.5 77 70 70 3.5
55 3.5 45 38 40 3.5 95 3.5 77 70 65 3.5
60 3.0 41 35 42 3.0 95 4.0 78 70 70 4.0
60 3.0 46 40 62 3.0 97 3.48 77.14 70.18 62 3.5
63 3.5 47 40 40 3.5 97 3.5 82 75 74 3.5
65 3.5 52 45 40 3.5 100 5.0 85 75 70 5.0
68 3.5 54 47 35 3.5 103 3.525 70.8 63.75 73 3.5
70 3.5 54 47 40 3.5 105 3.5 82 75 75 3.5
70 3.5 57 50 48 3.5 105 3.5 87 80 70 3.5
72 3.5 57 50 45 3.5 107 4.0 83 75 74 4.0
72 3.5 57 50 50 3.5 108 3.5 72 65 75 3.5
75 3.5 57 50 50 3.5 108 3.5 77 70 98 3.5
77 3.0 60 54 55 3.0 108 5.0 80 70 90 5.0
83 3.5 66 59 53 3.5 115 5.0 100 90 75 5.0
85 3.5 65 58 60 3.5 128 3.8 92.6 85 103 4.0
87 3.5 67 60 53 3.5 – – – – – –
87 3.5 67 60 60 3.5 – – – – – –

Recommended Fits for Flanged Bushings (per engineering note):

  • Bushing OD → +0.12 / +0.16 (mate with housing bore +0.03 / +0.05)

  • Bushing ID → +0.20 / +0.25 (mate with shaft -0.14 / -0.16)

5. Fitting & Tolerance Quick Reference

Use these tables to design your housing and shaft prior to assembly.

5.1 Bushing Outer Diameter (Press‑Fit into Housing)

 
 
OD Range ΦD (mm) OD Tolerance (mm) – Positive Only
≤ 10 +0.055 / +0.025
10 ~ 18 +0.065 / +0.030
18 ~ 30 +0.075 / +0.035
30 ~ 50 +0.085 / +0.045
50 ~ 80 +0.100 / +0.055
80 ~ 120 +0.120 / +0.070
120 ~ 180 +0.170 / +0.100

5.2 Wall Thickness (Affects Final ID after pressing)

 
 
ID Range Φd (mm) Nominal Wall (mm) Wall Tolerance (mm)
8 ~ 18 1.0 0 / -0.030
18 ~ 25 1.5 0 / -0.030
25 ~ 45 2.0 0 / -0.035
45 ~ 150 2.5 0 / -0.050

Critical Note: After pressing into an H7 housing, the bushing ID reduces. The final running clearance corresponds to H9 internal accuracy. Always measure the installed ID before final shaft sizing.

6. Step‑by‑Step Selection Workflow (Optimized)

 
 
Step Action Decision Criteria
1. Load & Speed Calculate PV = Load (N/mm²) × Speed (m/s). If PV > 15 → JF‑800 (oil); if speed > 15 m/s → JF‑20.
2. Environment Check operating temp, lubrication type. Grease → reduce PV by 50%; JF‑700 for corrosion.
3. Choose Grade Pick from Section 2 matrix. Confirm load ≤ Max Static N/mm².
4. Select Bore (Φd) Match shaft diameter. Use ID tolerances from Section 5.2.
5. Select Length (L) Choose from available lengths. Longer = lower specific load; shorter = lower cost.
6. Housing Fit Machine housing to H7. Use OD tolerances from Section 5.1 to ensure interference.
7. Verify Clearance Check installed ID after press. Adjust shaft to H9 clearance if needed.

7. Application Mapping (Quick Look‑Up)

 
 
Application Recommended Grade
Connecting rods (automotive) JF‑800 or JF‑700
Main bearings (IC engines) JF‑720 or JF‑700
High‑speed spindles / gearboxes JF‑20
Compressors / refrigeration JF‑930
Mining / construction equipment JF‑800
Agricultural machinery JF‑720
Heavy shock / oscillating loads JF‑800 or JF‑700

All dimensions in mm. Tolerances per ISO standard. For non‑standard sizes, flanged configurations, or special groove patterns, please contact our engineering support team.

 
 
 
 
 

Bimetal Bush Material Characteristics

Data JF-800 BIMETAL JF-20 BIMETAL
Bimetal Bush Structure
Steel + CuPb10Sn10 Steel + AlSn20Cu
Corresponding Code SAE-792(SAE797).
JIS-LBC3.		 SAE-783. JIS-AJL.
Max Load Capacity P 150N/mm2 100N/mm2
Grease Lubrication
Max Speed V 2.5m/s
Maximum PV Value 2.8N/mm2 · m/s
Coefficient of friction u 0.05~0.15
(Oil)Lubrication
Max Speed V 10m/s 25m/s
Maximum PV Value 10N/mm2 · m/s 6N/mm2 · m/s
0.05~0.12 0.06~0.17
Max Working Temperature
Grease Lubrication 150℃ 150℃
Lubrication 250℃ 250℃
Alloy Hardness 60~100HB 30~40HB

Bimetal Bush Oil Hole Design

Dawn provides high quality products and professional solutions for the world.

Oil Hole is necessary to design if Bimetal bushes have lubricated sufficiently; the following oil hole design is recommended, which is also suitable for Bimetal bushes series without special requirements.

Bushing O.D. (D) Φ14＞D ≤ 22 Φ22＞D ≤ 40 Φ40＞D ≤ 50 Φ50＞D ≤ 100 Φ100＞D ≤ 180
Oil Hole Diameter (mm) 3 4 5 6 7

The oil hole location should keep away from the split gap & loading area and in favor of oil-taking.

Bimetal Bush Inner hole and non-machinable thickness tolerance

Nominal thickness
Norminal Thiickness		 Inner hole non-machinable thickness tolerance
Tolerances of Series B (non-machinable)		 Machinable thickness tolerance of inner hole
Tolerances of Series C (non-machinable)
1.0 -0.025 +0.25
+0.15
2.0 -0.030 +0.25
+0.15
2.5 -0.035 +0.25
+0.15
3.0 -0.040 +0.30
+0.15
3.5 -0.045 +0.30
+0.15
3.5 -0.050 +0.30
+0.15
Bimetal Bush
CuPb10Sn10		 Advantageous in high load carrying capacity, anti-impact, lower wear. Suitable for Mid-load capacity & Mid-higher Sliding velocity . Bushings for Gearbox, Rocker arm, King Pin, transmission, etc.
Bimetal Bush
CuPb24Sn4		 Higher fatigue strength & load carrying capacity, good running characteristics at higher sliding velocities. Suitable for Mid-load capacity & Mid-Sliding velocity. Bushings for lubricating oil pumps. After surface specifical treatment, Bushings for Main bushes of the high-speed internal-combustion engine, Connecting Rod, etc.
Bimetal Bush
CuPb30		 Very Good sliding Characteristics, good anti-seizure property, special material, Punched oil grooves & oil pockets are not feasible. Bushings are suitable for hydraulic Pump, automatic gearbox. After surface specifical treatment, bushings for main bushes of high speed, medium-low load internal-combustion engine, Connecting Rod, etc.
Bimetal Bush
AlSn20Cu		 Mid fatigue strength & load carrying capacity, very good fatigue strength & load carrying capacity, and very good sliding characteristics. Bushings for half-bearing of high speed, lower load internal-combustion engine, air compressor, refrigerator, hypoid gearbox, hydraulic pump, gearbox, etc.

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Bimetal Bush Lubrication Design

Manufacturer of Bimetal Bushes – Flanged Bimetal Bush offered by viiplus.com

Different lubrication design cross-sections

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Bimetal Bush Lubrication Design

Manufacturer of Bimetal Bushes – Flanged Bimetal Bush offered by viiplus.com

bimetal bush Split Gap Design