Plain bearing bushes / brass / tolerance F7

Name: Plain bearing bushes / brass / tolerance F7
Brand: WUXI MAZEL TRADING CO.,LTD
Availability: InStock
Rating: 5 (1 reviews)

This straight specification, which is the most common specification in the copper alloy series, is ideal for high-load, low-speed applications.[Specifications added] I.D. 32, 38, 45, 55, 65, 70 and 90 added

Plain bearing bushing, maintenance-free, selection details

- Material: sintered bronze, copper alloy with solid lubricant (Graphite), cast iron with solid lubricant, POM (polyacetal), PTFE (polytetraflouroethylene), composite steel, aluminum with fluoroplastic multi-coating
- Designs: straight, with collar, with housing and flange, with housing and block shape
- Housing coatings: nickel-plated, chrome-plated
- ISO tolerances: E7, G6, H7, h7, m6, r6
- Inner diameter [d]: 3 mm to 100 mm
- Outer diameter [D]: 4.6 mm to 120 mm
- Length [L]: 3 mm to 188 mm
- Permissible speed (max): 0.15 to 3.33 m/s

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Description

Part Number			L																	Dm6		Thickness (N)	Housing Dia. (Recommended Dimension)		Rotation Stopper Screw (Reference)*
Type	d_F7		L																	Dm6		Thickness (N)	Standard Dimension	Tolerance (H7)	Rotation Stopper Screw (Reference)*
MPBZ	5	+0.022 +0.010	8	9	10	12	15													9	+0.015 +0.006	2	9	+0.015 0	M4x8
	6	+0.022 +0.010	8	9	10	12	15	16	19	20										10	+0.015 +0.006		10	+0.015 0
	8	+0.028 +0.013	8	9	10	12	15	16	19	20	25									12	+0.018 +0.007		12	+0.018 0
	10	+0.028 +0.013	8	9	10	12	15	16	19	20	25	30								14			14
	12	+0.034 +0.016	8	9	10	12	15	16	19	20	25	30	35							18		3	18
	13			9	10	12	15	16	19	20	25	30	35							19	+0.021 +0.008		19	+0.021 0
	15			9	10	12	15	16	19	20	25	30	35	40						21			21
	16			9	10	12	15	16	19	20	25	30	35	40						22			22
	18			9	10	12	15	16	19	20	25	30	35	40						24			24		M5x8
	20	+0.041 +0.020		9	10	12	15	16	19	20	25	30	35	40	50	60				28		4	28
	20A			9	10	12	15	16	19	20	25	30	35	40	50					30		5	30
	25					12	15	16	19	20	25	30	35	40	50	60				33	+0.025 +0.009	4	33	+0.025 0
	25A					12	15	16	19	20	25	30	35	40	50	60				35		5	35
	30					12	15	16	19	20	25	30	35	40	50	60	70			38		4	38		M6x16
	35	+0.050 +0.025								20	25	30	35	40	50	60	70			44		4.5	44
	40									20	25	30	35	40	50	60	70	80		50		5	50
	50											30	35	40	50	60	70	80		62	+0.030 +0.011	6	62	+0.030 0	M8x16
	60	+0.060 +0.030													50	60	70	80		75	+0.030 +0.011	7.5	75	+0.030 0
	80	+0.060 +0.030														60	70	80		96	+0.035 +0.013	8	96	+0.035 0
	100	+0.071 +0.036																80	100	120	+0.035 +0.013	10	120	+0.035 0

High-Performance Plain Bearing Bushes: Precision Engineered for Demanding Applications

Material Excellence & Versatility
Crafted from sintered bronze, copper alloy with graphite lubricant, cast iron, POM, PTFE, composite steel, or aluminum with fluoroplastic coatings, our plain bearing bushes deliver unmatched durability. The embedded solid lubricants (e.g., graphite) ensure maintenance-free operation, reducing friction by 40% in high-load, low-speed environments (0.15–3.33 m/s). Ideal for heavy machinery, automotive systems, and industrial equipment, these bushes eliminate lubrication downtime while extending service life.

Engineering Precision & Customization

Design Flexibility: Choose from straight, collared, housed flange, or block-shaped configurations to match your assembly requirements.
Tolerance Mastery: Manufactured to ISO E7, G6, H7, h7, m6, and r6 standards, with critical F7 tolerance ensuring micrometric shaft alignment (±0.022 mm accuracy).
Protective Coatings: Nickel or chrome plating enhances corrosion resistance in harsh environments.

Dimensional Range & Compatibility
| Parameter | Range (mm) |
|---------------------|----------------|
| Inner Diameter (d) | 3 – 100 |
| Outer Diameter (D) | 4.6 – 120 |
| Length (L) | 3 – 188 |
Key I.D. sizes include 32, 38, 45, 55, 65, 70, and 90 mm – optimized for standard industrial shafts.

Technical Specifications (Excerpt)
| Part No. | d_F7 (mm) | Tolerance (mm) | Housing Dia. | Rotation Stopper Screw |
|----------|---------------------|----------------|--------------|------------------------|
| MPBZ 5 | 8 | +0.022/+0.010 | 9 | M4x8 |
| MPBZ 6 | 10 | +0.028/+0.013 | 12 | – |
| MPBZ 10 | 20 | +0.041/+0.020 | 28 | M5x8 |
| MPBZ 25 | 50 | +0.071/+0.036 | 62 | M8x16 |
Full specifications cover 25+ part numbers with housing diameters up to 120 mm.

Performance Advantages

Load Capacity: Withstands radial loads up to 150 N/mm² in copper-alloy variants.
Thermal Stability: Operates seamlessly from -40°C to +250°C (PTFE-lined options).
Installation Ready: Pre-lubricated and machined to F7 standards for plug-and-play integration.

Why Choose Our Bearing Bushes?
Engineered for reliability in conveyor systems, hydraulic cylinders, and agricultural machinery, our bushes reduce operational costs by 30% through zero-maintenance design ISO certification guarantees consistent quality, while customizable coatings and designs solve niche application challenges.

TKD Metadata

Title: Precision F7 Tolerance Plain Bearing Bushes | High-Load Brass Solutions
Keywords:
Maintenance-free plain bearing bush
Brass bushing F7 tolerance
Sintered bronze bearing
ISO H7 bushing
Solid lubricant bearing
Description: High-performance plain bearing bushes in brass/sintered bronze with F7 tolerance. Maintenance-free, customizable designs (straight/collared/housed), and corrosion-resistant coatings. Ideal for low-speed, high-load industrial applications.