Pipe Rollers with Bearing

A hollow roller suitable for transporting and sliding various workpieces.

The outer diameter of this product is D+2T. (Different from other rollers.)
The bearing is removable. Tape is used for temporary fixation during shipping.
There are different machining processes for the keyway, so the appearance of the keyway hole may vary.

Type	Material		Surface Treatment (Coating)	Hardness
	Core Material	Bearing
E-RORLAU	Aluminum alloy	Steel	Polyurethane (green)	Shore A90
E-RORLAG			Polyurethane (black)	Shore A70

The shaft end and inner diameter sections are not surface treated.
Since the core material is drawn material, the inner diameter d₁ may be uneven.

Type		Polyurethane thickness T selection	d	L selection			Applicable bearing	D1	B	d1
Type	D									Aluminum alloy
E-RORLAU E-RORLAG	20	3 5 10	6	100	150	200	B696ZZ	15	5	11
			8				B688ZZ	16
	30		8	100 150 200 250 300 350 400 450 500			B698ZZ	19	6	15
			10				B6900ZZ	22	6	15
			12				B6901ZZ	24
	40		8				B628ZZ	24	8	17
			10				B6000ZZ	26
			12				B6901ZZ	24	6
			15				B6902ZZ	28	7
			20				B6804ZZ	32		22
	50		10				B6200ZZ	30	9	17
			12				B6001ZZ	28	8	22
			15				B6902ZZ	28	7	17
			20				B6904ZZ	37	9	27
			25				B6905ZZ	42
	60		12				B6201ZZ	32	10	22
			15				B6002ZZ		9
			20				B6904ZZ	37	9
			25				B6905ZZ	42		32
			30				B6906ZZ	47
	80		25				B6205ZZ	52	15	41
			30				B6006ZZ	55	13
			35				B6907ZZ		10

The actual product color may vary.
The bearings used in this product are not guaranteed to be of a specific brand.
The end face has been specially machined to avoid contact with the inner ring of the bearing.

Feature 1: The core material uses drawn profiles, achieving a lightweight design while better controlling the cost.
Feature 2: Compared to metal rollers, polyurethane rollers are less likely to transmit vibration and noise.
Feature 3: Polyurethane has low dust generation.
Feature 4: The hardness can be easily identified by the color of the polyurethane (green: A90; black: A70), and it does not experience the yellowing phenomenon that occurs with natural-colored polyurethane.
Feature 5: The polyurethane is sintered onto the core material surface, which provides higher polyurethane adhesion compared to press-fit or adhesive products, making it more suitable for applications with larger axial loads.

(1) Since this is a core material product and is an extruded profile, the d1 inner diameter may be uneven.
(2) The shaft ends and inner diameter sections are not surface treated.
(3) Polyurethane dimensional changes
The size of the polyurethane may change with the surrounding temperature, but the variation is minimal, and it will return to its original size after being left at room temperature for several hours.