SBFCT200 & SAFCT200 Series 3-Bolt Flange Bearing Units — Light Duty, Ductile Iron, Carriage Bolt Holes
The SBFCT200 and SAFCT200 series address a specific installation requirement: a three-bolt flange bracket in light duty that uses square-hole carriage bolt fixings rather than round clearance holes. The square bolt holes accept standard carriage bolt square necks, locking against rotation without a wrench on the bolt head — a feature that simplifies installation in locations where one-sided spanner access is restricted. The ductile iron housing provides better impact resistance than grey cast iron for the same weight, making these units appropriate for light agricultural, small packaging, and compact industrial drives where occasional impact loads or frame vibration are a concern.
SBFCT200 uses a setscrew insert (SB series) for bidirectional and intermittent drives. SAFCT200 uses an eccentric locking collar insert (SA series) for unidirectional drives where the self-tightening action of the collar provides more secure retention under sustained operation. Both use the identical FCT-series ductile iron housing — only the insert bearing differs.
Carriage Bolt Square Holes — Installation Advantage
Standard pillow block and flange bearings use round clearance holes that require a spanner on the bolt head to prevent rotation during nut tightening. SBFCT/SAFCT square holes grip the carriage bolt neck, preventing the bolt from rotating when the nut is tightened from the access side only. This makes installation significantly faster in locations where the bolt head face is inaccessible — inside a channel section, against a panel back, or under a cover that cannot be removed. Note that cast iron housing versions are also available on request.
Key Features
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Square Carriage Bolt Holes
Square hole profile grips carriage bolt square neck, preventing rotation during tightening from one side only. Simplifies installation in restricted-access locations.
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Ductile Iron Housing
Better impact and vibration resistance than grey cast iron at the same weight. Standard for light agricultural and compact industrial drives where frame vibration is a factor.
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SBFCT = Setscrew / SAFCT = Eccentric Collar
Identical FCT housing, two locking options. SBFCT for bidirectional. SAFCT for unidirectional self-tightening retention. Upgrade from SBFCT to SAFCT by replacing insert only.
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Compact Low-Profile Housing
L and P dimensions smaller than equivalent UCFB200 for same bore. Suits compact machine frames where the full UCFB200 bracket body does not fit.
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Metric and Inch Bolt Sizes
Bolt column lists both metric (M6, M8, M10) and inch (1/4, 5/16, 3/8) bolt sizes accepted by the square carriage bolt holes.
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Cast Iron Housing Option
Cast iron housing available on request for applications requiring higher compressive strength at the mounting face.
SBFCT200 Series (Setscrew) Specifications
| Unit No. | d mm | d inch | L mm | P mm | A1 mm | A mm | A2 mm | N mm | S mm | E mm | Bolt | Bearing No. | Housing No. | kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SBFCT201~203 / 201-8~203-11 | 12~17 | 1/2~11/16 | 81 | 63.5 | 10.7 | 19.1 | 10.7 | 7.1 | 6 | 26.7 | M6 / 1/4 | SB201~203 | FCT203 | 0.21 |
| SBFCT204-12 / 204 | 20 | 3/4 | 90.5 | 71.4 | 11.1 | 19.8 | 11.1 | 8.7 | 7 | 29.1 | M8 / 5/16 | SB204-12 / SB204 | FCT204 | 0.32 |
| SBFCT205-14~16 / 205 | 25 | 7/8~1 | 95.2 | 76.2 | 10.3 | 19.8 | 10.3 | 8.7 | 7.5 | 29.8 | M8 / 5/16 | SB205-14~16 / SB205 | FCT205 | 0.36 |
| SBFCT206-18~20 / 206 | 30 | 1-1/8~1-1/4 | 113 | 90.5 | 12 | 22 | 12 | 10.3 | 8 | 34 | M10 / 3/8 | SB206-18~20 / SB206 | FCT206 | 0.57 |
| SBFCT207-20~23 / 207 | 35 | 1-1/4~1-7/16 | 122.5 | 100 | 12.7 | 23.8 | 12.7 | 10.3 | 8.5 | 36.2 | M10 / 3/8 | SB207-20~23 / SB207 | FCT207 | 0.71 |
→ Scroll horizontally to view all columns. Catalogue dimensions for reference only — engineering drawings required before order.
SAFCT200 Series (Eccentric Collar) Specifications
| Unit No. | d mm | d inch | L mm | P mm | A1 mm | A mm | A2 mm | S mm | n mm | E mm | Bolt | Bearing No. | Housing No. | kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SAFCT201~203 / 201-8~203-11 | 12~17 | 1/2~11/16 | 81 | 63.5 | 10.7 | 19.1 | 10.7 | 7.1 | 6.5 | 32.8 | M6 / 1/4 | SA201~203 | FCT203 | 0.26 |
| SAFCT204-12 / 204 | 20 | 3/4 | 90.5 | 71.4 | 11.1 | 19.8 | 11.1 | 8.7 | 7.5 | 34.5 | M8 / 5/16 | SA204-12 / SA204 | FCT204 | 0.34 |
| SAFCT205-14~16 / 205 | 25 | 7/8~1 | 95.2 | 76.2 | 10.3 | 19.8 | 10.3 | 8.7 | 7.5 | 33.7 | M8 / 5/16 | SA205-14~16 / SA205 | FCT205 | 0.39 |
| SAFCT206-18~20 / 206 | 30 | 1-1/8~1-1/4 | 113 | 90.5 | 12 | 22 | 12 | 10.3 | 9 | 38.7 | M10 / 3/8 | SA206-18~20 / SA206 | FCT206 | 0.61 |
| SAFCT207-20~23 / 207 | 35 | 1-1/4~1-7/16 | 122.5 | 100 | 12.7 | 23.8 | 12.7 | 10.3 | 9.5 | 42.1 | M10 / 3/8 | SA207-20~23 / SA207 | FCT207 | 0.82 |
→ Scroll horizontally to view all columns. Catalogue dimensions for reference only — engineering drawings required before order.
Bearing No. = insert bearing part number. Housing No. = FCT-series ductile iron housing (same for both SBFCT and SAFCT). E = square bolt hole size. Cast iron housing available on request.
Applications
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Light Agricultural Equipment Frames
Seed drill metering bracket supports, small sprayer frame bearings, and compact tillage implement shaft supports where the square carriage bolt holes allow one-sided installation into thin frame sections.
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Compact Packaging & Labelling Machine Frames
Label applicator and coder bracket supports on compact packaging machines where the housing depth is minimal and carriage bolt installation avoids the need for spanner access behind the frame panel.
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Small Fan & Ventilation Unit Brackets
Small centrifugal fan and ventilation unit shaft bracket supports where ductile iron housing provides impact resistance for occasional maintenance handling and carriage bolts simplify bracket installation.
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Light Conveyor & Transfer Bracket Positions
Small parts conveyor bracket shaft supports where the compact FCT housing fits in spaces the larger UCFB200 bracket body cannot access.
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SBFCT to SAFCT Upgrade
Any existing SBFCT installation where unidirectional rotation makes eccentric collar locking preferable — replace only the insert bearing, housing unchanged.
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Construction & Outdoor Equipment Brackets
Bracket positions on outdoor and construction equipment where ductile iron's better impact resistance compared to grey cast iron is valuable under rough handling and vibration.
📦 MOQ & Order Information
- Standard parts: quantity-based MOQ applies per model number.
- High-value / large items: minimum order by USD order value.
- New-client samples: 1–5 pcs available at sample price for first-time buyers.
- Multi-model combines: aggregate orders of USD 1,500 or more across models accepted.
- Special materials / processes: subject to process MOQ — confirm at inquiry stage.
- Retail (1–2 pcs): not accepted. Minimum sample order is 1–5 pcs at sample pricing.
Engineering drawings must be submitted and approved before order confirmation. Catalogue dimensions are for reference only.
Frequently Asked Questions
Difference between SBFCT200 and SAFCT200?
SBFCT200 = setscrew insert (bidirectional). SAFCT200 = eccentric collar insert (unidirectional). Identical FCT housing.
Why square bolt holes?
Square carriage bolt holes grip the bolt neck, preventing rotation during one-sided nut tightening in restricted-access locations.
Is cast iron housing available?
Yes — on request. Contact us for availability and lead time.
What is the MOQ?
Standard parts: quantity-based MOQ. Samples 1–5 pcs. Multi-model from USD 1,500. Retail 1–2 pcs not accepted.
Request a Quote for SBFCT200 & SAFCT200 Series
Specify SBFCT (setscrew) or SAFCT (eccentric collar), shaft diameter, bore type, and quantity. Contact us.
