SB‑110A Radial Spherical Plain Bearing 110*170*93mm Excavator Hydraulic Cylinder Construction Machinery Pivot Joint

Product Overview
- SB‑110A is an open‑style oil‑suppliable radial spherical plain bearing with one‑split outer‑ring structure. Its steel‑on‑steel sliding surface bears heavy radial load and shock load. It permits 5‑degree shaft angular deviation to compensate installation misalignment. The lubriion holes support periodic grease replenishment, well‑suited for excavator hinge points, hydraulic cylinders and heavy‑duty construction‑machinery pivoting assemblies.
*Send inquiry to get latest factory price and technical datasheet.
Key Specifiions
| Specifiion |
Value |
| Bearing Model |
SB‑110A |
| Bearing Type |
Radial Spherical Plain Bearing (oil‑feed type SB‑A series) |
| Number of row |
Single Row |
| Inner diameter d |
110 mm |
| Outer diameter D |
170 mm |
| Inner‑ring Width B |
93 mm |
| Outer‑ring Width C |
80 mm |
| Spherical‑surface diameter dk |
160 mm |
| Material |
GCr15 Chrome Bearing Steel |
| Seal Type |
Open, no built‑in seal |
| Minimum Chamfer r |
1 mm |
| Allowable Tilt Angle |
5° |
| Basic Dynamic Load Cr |
1260000 N |
| Basic Static Load C0r |
7530000 N |
| Net Weight |
8.55 kg |
| Sliding Surface |
Steel‑to‑steel contact, relubriable |
| Suffix‑Code Explanation |
A One‑piece split outer ring, small radial clearance, equipped with lubriion holes |
Main Features
- 5‑degree permissible tilting angle for compensating shaft mounting mis‑alignment
- One‑piece split outer‑ring for convenient installation and stable retaining of inner ring
- Reserved lubriion holes for regular grease maintenance and prolonged service life
- Extremely high static‑load rating, suitable for impact‑loaded heavy‑duty working‑conditions
- Wear‑resistant metal‑to‑metal sliding contact for repeated oscillating motion
- Compact integrated‑type structure without seals, adapting various heavy‑duty mechanical joints
Typical Appliions
- Excavator and construction‑machinery hydraulic cylinder hinge joints
- Mining‑equipment heavy‑duty oscillating transmission shafts
- Metallurgical‑plant swing and articulated mechanical assemblies
- Heavy‑duty transportation‑equipment suspension pivot components
- Paper‑making machinery and industrial roller articulated bearings
- Engineering machinery vibration‑resistant heavy‑load rotary joints
*Check matched bearing models to complete your mechanical assembly.
Why Choose GQZ Bearing
- 30 years professional bearing industry experience
- ISO certified strict quality inspection
- Flexible OEM & private label customization
- 3-5 days fast delivery for stocked bearings
- Full bearing series, universal interchangeable size
- Factory direct price & reliable after-sales service






FAQ
Q1: What kinds of loads can SB‑110A spherical plain bearing withstand?
A1: It mainly endures heavy radial load and can withstand frequent impact‑type working loads.
Q2: What is the maximum allowable shaft deflection angle?
A2: This SB‑A series spherical plain bearing allows a maximum tilting angle of 5 degrees.
Q3: Does SB‑110A come with integrated sealing covers?
A3: It adopts open‑type design, users shall install external dust‑proof devices under dusty surroundings.
Q4: What structural characteristic does the suffix‑A represent?
A4: A stands for one‑piece split outer‑ring structure with small internal radial clearance.
Q5: Is this joint bearing available for grease refilling?
A5: Yes, built‑in lubriion holes allow operators to inject lubricant for maintenance.
*Place your enquiry to check stock availability, bulk‑order discounts and long‑term after‑sales assistance.