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Mountable shaft collars with face holes are designed to mate directly with components such as sprockets, pulleys, and metallic plates. Ruland manufactures them with drilled holes for mounting flexibility or threaded holes for the most secure connection between the collar and mated component. They are offered in steel, aluminum, and 303 stainless steel in bore sizes ranging from 3/8” to 2” and 10mm to 50mm.
Clamp style universal joints improve over set screw style because they do not mar the shaft, offer infinite adjustability, and can be used on all shaft types. Ruland is the only North American supplier of clamp style universal joints and manufactures the clamp feature, bores, and keyways in our advanced manufacturing facility in Marlborough, MA USA. They are available in sizes from 1/4" to 1 1/4” in steel for high strength and stainless steel for corrosion resistance.
Ruland VMST25-20.5-M6-12-55-SSPS/2PK is a 2 pack of rubber bumpers, each with a threaded stud. An individual rubber bumper has a 25mm outside diameter, M6 threaded stud, 12mm stud length, and 20.5mm height. These rubber bumpers are manufactured with FDA compliant materials for use in food processing, packaging, and medical equipment . They are often referred to as a sandwich mount or rubber buffer because they function as a shock or vibration isolator sandwiched between two machine components or surfaces. These rubber bumpers have a tapered (conical) shape for gentler accommodation of shock loads when compared to cylindrical types. A rubber bumper can be mounted to the system by passing it through an unthreaded hole and securing with a nut or threading it directly into tapped holes on the component it will be mounted to. They have a 304 stainless steel body combined with a silicone rubber jacket which makes for a bumper that can withstand temperatures up to 392F (200C) and has increased service life when compared to nitrile or natural rubber. Rubber bumpers in this pack have 55 Shore A hardness for a balance of rigidty and shock absorption. These rubber bumpers are sourced from a premier partner, inventoried by Ruland, and RoHS3 compliant.
PRODUCT SPECIFICATIONS
Dimensions
Outer Diameter (OD)
0.98 in (25 mm)
Height (H1)
0.81 in (20.5 mm)
Thread (TH)
M6 x 1.0
Plate Thickness (PT)
0.08 in (2 mm)
Stud Length (LS)
0.47 in (12 mm)
Performance Specifications
Spring Rate
514 lb/in (90 N/mm)
Shore Hardness
55A (+/- 5)
Max Deflection
0.20 in (5.0 mm)
Max Axial Load
103 lb (460 N)
Additional Information
Multipack Quantity
2
Geometry
Truncated Conical
Rubber Material
Silicone
Metal Material
Stainless Steel
Metallic Body Finish
Bright
Country of Origin
Hungary
Weight (lbs)
0.070500
UPC
634529366851
Tariff Code
4016.99.6000
UNSPC
Code used to identify products to standardize nomenclature around the world.
31162804
Product Notes
Note 1
Performance ratings are for guidance only. The user must determine suitability for a particular application.
