Simplicity® Plain Linear Sleeve Bearing with a 1/4" inner diameter and a length of 3/8" with a round flanged end mount. This closed plain bushing is designed for both linear and rotational movement. The self-lubricating, maintenance-free bearing liner is FrelonGold® by default, ensuring long-lasting performance in extremely hot and/or dirty..
$14.25
Linear Sleeve Bearing with a 5/8" inner diameter, 1" length and closed aluminum alloy shell. This maintenance-free Simplicity® plain bushing is designed for both linear and rotational movement. The self-lubricating FrelonGold® bearing liner guarantees performance in extreme environments, including heat, dirt, and oscillation, eliminating the risk of catastrophic failure. Temperature..
$17.41
Flanged Plain Linear Sleeve Bearing with a 3/16" inner diameter and a length of 1/2" with a round flange end mount. This closed plain bushing is designed for both linear and rotational movement. The self-lubricating, maintenance-free bearing liner is FrelonGold® by default, ensuring performance in hot and/or dirty environments without..
$13.92
Linear Sleeve Bearing with a 1.25" inner diameter, 2" length and closed aluminum alloy shell. This maintenance-free Simplicity® plain bushing is designed for both linear and rotational movement. The self-lubricating FrelonGold® bearing liner guarantees performance in extreme environments, including heat, dirt, and oscillation, eliminating the risk of catastrophic failure. Temperature..
$42.47
Linear Sleeve Bearing with a 1/2" inner diameter, 3/4" length and closed aluminum alloy shell. This maintenance-free Simplicity® plain bushing is designed for both linear and rotational movement. The self-lubricating FrelonGold® bearing liner guarantees performance in extreme environments, including heat, dirt, and oscillation, eliminating the risk of catastrophic failure. Temperature..
$16.10
Linear Sleeve Bearing with a 1/2" inner diameter, 1/2" length and closed aluminum alloy shell. This maintenance-free Simplicity® plain bushing is designed for both linear and rotational movement. The self-lubricating FrelonGold® bearing liner guarantees performance in extreme environments, including heat, dirt, and oscillation, eliminating the risk of catastrophic failure. Temperature..
$15.42
Open Plain Linear Bearing Pillow Block with a 1.5" inner diameter and a compensated running clearance of 0.0015" per side. A mountable standard-sized aluminum housing encloses the bearing, which features a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. Optional liners: corrosive chemical..
$203.94
Open Plain Linear Bearing Pillow Block with a 16mm ISO Metric inner diameter and a precision running clearance of 0.0005" per side. A mountable standard aluminum housing encloses the bearing, which features a self-lubricating liner made from FrelonGOLD® for maintenance-free performance in harsh conditions such as extreme temperatures, dirt and..
$112.16
Plain Linear Bearing Pillow Block, closed shell, with a 2" inner diameter and a precision running clearance of 0.0005" per side. A mountable standard-sized aluminum housing encloses the bearing, which features a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. Liner options: corrosive..
$263.51
Plain Linear Bearing Pillow Block, closed shell, with a 5/8" inner diameter and a compensated running clearance of 0.0015" per side. A mountable standard-sized aluminum housing encloses the bearing, which features a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. Liner options: corrosive..
$60.59
Twin (TWN) Roller Bearing Pillow Block designed for a 20mm diameter shaft covers twice the space on a linear shaft compared to a single roller pillow block (SPB). The twin pillow block features two sets of 3 opposing roller bearings mounted in a larger twin open bearing housing, as if..
$282.44
Twin Linear Ball Bearing Pillow Block, closed shell, with a 1.25" ID (inner diameter) bearing inside a housing made of aluminum alloy. Features a low coefficient of friction for smooth operation, a heat-treated alloy steel shell for durability, a resin retainer to reduce noise, and standard double seals at no..
$262.71
Twin Linear Ball Bearing Pillow Block, closed shell, with a 1" ID (inner diameter) bearing inside a housing made of aluminum alloy. Features a low coefficient of friction for smooth operation, a heat-treated alloy steel shell for durability, a resin retainer polymer cage to reduce noise, and standard double seals..
$175.24
Twin Linear Ball Bearing Pillow Block, closed shell, with a 1/2" ID (inner diameter) bearing inside a housing made of aluminum alloy. Features a low coefficient of friction for smooth operation, a heat-treated alloy steel shell for durability, a resin retainer polymer cage to reduce noise, and standard double seals..
$103.39
Open Pillow Block consisting of a Linear Ball Bearing with a 1/2" ID (inner diameter) crowned shell self-aligning linear ball bearing inside a housing made of aluminum alloy. It is self-aligning due to a crowned bearing shell inside the housing. The IPPS products all come with a grease zerk fitting,..
$98.83
Open Linear Ball Bearing Pillow Block with a 3/4" ID (inner diameter) featuring a crowned shell linear bearing for self-alignment in an aluminum alloy housing. Size interchangeable with industry standards and our Simplicity plain linear bearing series. Open shell for use with linear rail supported round shafts Temperature Range: -4/+176°F..
$89.20
Open Linear Ball Bearing Pillow Block with a 1/2" ID (inner diameter) bearing inside a housing made of aluminum alloy. Size interchangeable with industry standards and our Simplicity plain linear bearing series. Open shell for use with linear rail supported round shafts Temperature Range: -4/+176°F (-20/+80°C) Variant ID Sizes: Available..
$71.00
Linear Ball Bearing Pillow Block, closed, with a 1" ID (inner diameter), featuring a linear ball bearing inside an aluminum alloy housing, incorporating a heat-treated alloy steel shell for enhanced durability, a resin retainer polymer cage for reduced noise, and double seals at no extra cost for contaminant protection. Size-interchangeable..
$103.08
Thin Wall Plain Linear Bearing with a compensated 40mm ID (inner diameter), featuring a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. The compensated running clearance provides more clearance between the lined interior and shaft allowing the plain bearing to perform like a..
$67.37
Thin Wall Plain Linear Bearing with a compensated 10mm ID (inner diameter), featuring a self-lubricating FrelonGOLD® liner for maintenance-free operation in harsh conditions like extreme temperatures, dirt and vibration. The compensated running clearance provides more clearance between the lined interior and shaft allowing the plain bearing to perform like a..
$15.95
Linear bearings are precision-bored mechanical components with sliding or rolling elements along the bore, enabling low-friction straight-line axial movement on round or square shafts. Open-shelled variants provide clearance for rail-supported shafts or profiled guide rails. Linear bearings are commonly standardized around specific inch, ISO metric, and JIS metric shaft sizes.
In this category, PBC Linear offers sliding element self-lubricating plain linear bearings, rolling element linear ball bearings, and cam roller pillow blocks.
Plain linear bearing options include premium Simplicity® bearings with bonded FrelonGOLD® PTFE liners that serve as the sliding element between the bearing and shaft, providing smooth, self-lubricating, maintenance-free motion without metal-to-metal contact in harsh environments such as extreme heat, dirt, vibration, and high-downtime replacement situations. EconoGlide® bearings provide a low-cost alternative to popular polymer-lined linear bearings, using injection-molded Frelon® IM liners for cleaner applications and easy-access machinery.. These plain bearings support linear, rotational, and oscillating motion, with Simplicity configurations including standard, twin-sized, flanged, pillow block, thin-walled, sleeve bushing, and die set variants.
Linear ball bearings are rolling-element bearings with durable heat-treated outer rings, quiet resin retainers, and high-speed recirculating steel balls. Because they are not subject to the 2:1 binding limitation of plain bearings, they are well suited for cantilevered load applications and are available in standard, twin-sized, flanged, and pillow block housings.
Cam roller pillow blocks use open aluminum housings with one or more sets of 3 opposing coated steel cam rollers that run on rail-supported round shafts for long linear travel with high loads.
PBC Linear Specifications for Simplicity Plain Linear Bearings:
- Self-Lubricating Bearing Liner is Bonded to the Bore ID: FrelonGOLD® is standard;
- Optional liners: Frelon®J for corrosive chemical conditions; Frelon®W (FDA compliant)
- Temperature Rating: -400°F/+400°F or -240°C/204°C
- ID Sizes: Available from 3/16” to 4” Inch Series, 5mm to 80mm Metric Series
- Maximum Horizontal Static Load: 2,165-100,500 lb (982- 45,586 kg)l
- Maximum Speed: Up to 8 m/s (315 in/s)
- Shaft Lengths: Up to 12 feet
- Shell Material: Standard is aluminum; stainless steel shells are available
- Self-Lubricating: Provides oil-free operation
- Seal Options: Nitrile rubber, urethane, and viton seals available from ½” ID and up or 20mm and up
- Mounting Options: O-ring and retaining ring grooves for multiple mounting options
- External Lubrication: Optional feature for added lubrication
- Vibration Damping: Ensures smooth and quiet operation
Specifications for EconoGlide Plain Linear Bearings:
- Injection Molded Polymer Bearing ID Liner
- Temperature Rating: -58ºF/+194ºF (-50ºC/+90ºC)
- ID Sizes: 3/8” to 2” and 8mm to 50mm
- Maximum Speed: 1.5 m/s
- Shell Material: standard is aluminum; stainless steel shells are available
- Self-Lubricating: Provides oil-free operation
- Mounting Options: O-ring and retaining ring grooves for multiple mounting options
- External Lubrication: Optional feature for added lubrication
- Vibration Damping: Ensures smooth and quiet operation
- Bearings available in inch and metric sizes; Flanged bearings are in metric sizes
Specifications for Linear Ball Bearings:
- Temperature Range: -4/+176°F (-20/+80°C)
- ID Sizes: Available from 1/4" to 2” Inch Series, and 8mm to 50mm Metric Series
- Static Load Capacities: Up to 1700 lb (7900 N)
- Dynamic Load Capacities: Up to 850 lb (3800 N)
- Interchangeable: Size interchangeable with industry standards and the Simplicity plain linear bearing series
- Low Coefficient of Friction: Ensures smooth operation
- Heat Treated Alloy Steel Shell: Provides durability
- Resin Retainer: Reduces noise
- Double Seals: Included as standard at no additional cost
Specifications for Roller Bearing Pillow Blocks:
- Use a floating "F" part number for each opposing block on parallel shafts to accommodate imperfect alignments.
- A set of opposing roller bearings consists of 1 fixed side roller, 1 eccentric side roller (to account for any misalignment) and a top support roller
- FUBK Series replacement kits include one new roller for each of the three in a set
- Order two replacement kits to cover more than one set of opposing bearings
Frequently Asked Questions
What is the difference between plain linear bearings and linear ball bearings?
Plain linear bearings use self-lubricating liners and are ideal for harsh environments, while linear ball bearings use recirculating steel balls for low friction and higher-speed performance.
What are the benefits of plain linear bearings?
Plain linear bearings provide maintenance-free, self-lubricating operation and perform well in environments with heat, dirt, debris, and vibration.
What are the advantages of linear ball bearings?
Linear ball bearings deliver high-speed, low-friction performance and eliminate the 2:1 binding limitation of plain bearings in cantilevered applications.
Which linear bearing is best for dirty or harsh environments?
Plain linear bearings are best suited for dirty or harsh environments because their self-lubricating liners resist contamination from dust, debris, and moisture.
Which linear bearing is best for high-speed applications?
Linear ball bearings are ideal for high-speed applications due to their low coefficient of friction and recirculating ball design.
When should cam roller pillow blocks be used?
Cam roller pillow blocks are ideal for heavy-load, long-travel applications, using coated steel cam rollers in open housing designs for durable performance along rail-supported round shafts.
Do linear ball bearings require lubrication?
Yes, most linear ball bearings require lubrication for optimal performance and service life, unlike self-lubricating plain bearings.
What motions do plain linear bearings support?
Round shaft plain bearings support rotary, linear, and oscillating motion, while square shaft versions support linear and oscillating motion only.
Are linear bearings interchangeable with industry standards?
Yes, most linear bearings are dimensionally interchangeable with industry-standard sizes.
What sizes are available for linear bearings?
Linear bearings match standard shaft sizes and are available in inch, metric, and JIS sizing.
What is the difference between plain linear bearings and linear ball bearings?
Plain linear bearings use self-lubricating liners and are ideal for harsh environments, while linear ball bearings use recirculating steel balls for low friction and higher-speed performance.
What are the benefits of plain linear bearings?
Plain linear bearings provide maintenance-free, self-lubricating operation and perform well in environments with heat, dirt, debris, and vibration.
What are the advantages of linear ball bearings?
Linear ball bearings deliver high-speed, low-friction performance and eliminate the 2:1 binding limitation of plain bearings in cantilevered applications.
Which linear bearing is best for dirty or harsh environments?
Plain linear bearings are best suited for dirty or harsh environments because their self-lubricating liners resist contamination from dust, debris, and moisture.
Which linear bearing is best for high-speed applications?
Linear ball bearings are ideal for high-speed applications due to their low coefficient of friction and recirculating ball design.
When should cam roller pillow blocks be used?
Cam roller pillow blocks are ideal for heavy-load, long-travel applications, using coated steel cam rollers in open housing designs for durable performance along rail-supported round shafts.
Do linear ball bearings require lubrication?
Yes, most linear ball bearings require lubrication for optimal performance and service life, unlike self-lubricating plain bearings.
What motions do plain linear bearings support?
Round shaft plain bearings support rotary, linear, and oscillating motion, while square shaft versions support linear and oscillating motion only.
Are linear bearings interchangeable with industry standards?
Yes, most linear bearings are dimensionally interchangeable with industry-standard sizes.
What sizes are available for linear bearings?
Linear bearings match standard shaft sizes and are available in inch, metric, and JIS sizing.
Types of Linear Bearings: Linear Plain Bearings, Linear Plain Bearing Flange Mounts, Linear Plain Sleeve Bearings, Linear Plain Pillow Block Bearings, Linear Plain Bearing Flange Die Set Bushings, Linear Plain Square Bearings, Linear Ball Bearings, Linear Ball Bearing Flange Mounts, Linear Ball Bearing Pillow Blocks, Roller Pillow Block Bearings, Single Roller Pillow Block Bearings, Double Roller Pillow Block Bearings, Twin Roller Pillow Block Bearings
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